Singulair and drugs

I have 2 sons with asthma that have both been taken singulair (the oldest for 3 years & his brother for 2). My younger son's asthma got alot better since he was diagnosed & he was recently taken off Singulair thanks also to my husband hearing a report about the moodiness caused. When he was on it he would cry for no reason, get very irrational & seemed to think the world was against him. In just 2 weeks he is happy & cheerful and has told me he thinks it is due to being off singulair. His older brother's asthma has gotten worse over the years & I'm concerned about taking him off but he too has crazy moods. Just tonight he started a new soccer team & got crazy & suddenly didn't even want to participate in something he loves (wanted me to let him quit right then) until we argued enough he reluctantly participated. He then came home complained of a headache (which is also way too frequent) and now has been asleep for hours. Are there any alternatives to this drug? I'm a stressed out mom that doesn't deal well with these mood swings. He is normally a social butterfly & a sweet kid but lately seems more withdrawn, more irritable (especially tonight) & complaining about leg cramps in addition to these frequent headaches. I can't deal with too many more of these evenings & wonder if all these things are possible side effects. I'm glad to see my other son doing well but miss his normally sweet brother! Even his siblings think he is acting crazy :(

unfreakinbelievable. every single drug ad I see on TV these days for new drugs claims that it will cure you of something. the only catch is: it will give you a million side-effects, half of which can be life threatening!!!

What kind of a job is the FDA doing that it lets these kinds of drugs enter the market and puts people with common problems like asthma in greater danger for developing extreme heart problems and psychological disorders???

I used Reactine. The very 1st tablet I used gave me a dream so vivid that I jumped out of bed - I was about 30% conscious and I still believed that I was in that dream. I dream that a Black Widow was in my bed right under my back and when I woke up I actually envisioned the Black Widow. Now consider that I live in Canada where BW's don't even exist. That's how powerful these drugs are and that's why you should stay away from them. I know this sounds crazy, but DON'T BELIEVE A THING YOUR DOCTOR TELLS YOU!!!!! Use common sense in common situations!!! Think for yourself and listen to your gut instinct or you will wind up dead before your time.

Hi to all,
I wanted to take a minute to say Thanks to all who post and search for answers to this drugs confusing and serious side effects.To all who have taken the time to contact the FDA and file a report to help others.Dr.Sarah Sellers is no longer the person to contact at the FDA,she has moved on after concluding her end of the investigation on Singulair.If you have a serious side effect please still take the time to file on the official FDA site for adverse event reporting.In NY. state we are still searching for legislation to help with the notification process for these serious side effects.There are to many Doctors that still do not have a clear idea of the updated side effects,and are not reporting as they should.
Letting your doctor know that good medicine is all about follow up on complaints,such as researching the singulair website to rule out that it may be the drug or it may not.Just dismissing the patient and prescribing another drug is how these drugs go undetected for so long.We want this to stop and only the unfortunate recipients of the horrors of this drug can make this happen.Again thank you for your efforts to change the system with follow through and perserverance.Our horror story is one of many and we want to help those who have survived the ravages of this drug, OUR CHILD DID NOT. Kate and Dave M.

hi everyone my name is Katie, and my son has been on Sindulair for over 6 months now. I took him off 2 nights ago, the day I found this sight. I just cant believe how many families this medication has hurt. When my son was put on, I was never told anything about anything like this happening. I thought his behavior was due to the divorce and child custody things in his life that were going on. It did not cross my mind that it could ever be this medication. He does not take anything else at all.
Some of the things we have been dealing with are, panic attacks at night, bad dreams, aggressiveness, depression, anxiety! Fits that you would not believe. Crying all the time, very emotional. And the newest one, thinking everyone he loves is going to get killed. These are not things a 6 just turned 7 year old should be going through.
I got to thinking that I needed to get him some professional help, this is not normal! I decided to look up Singulair on the net, I did not find anything. I looked up Childrens depression, and angziat, still nothing fit. Then I found this site. Wow did it blow my mind. It fit and it felt right, if you are a mom, I think you know where I am coming from. When you know you just know! So I got him off the medication, and already I am seeing changes. The first night was not grate but better than it has been in a long time, the next day though, he woke up and smiled at me for the first time in way to long, he only had 2 meltdowns that day, when he was having at lest 2 in an hr before. So far so good, I just hope that It keeps going well for him.
Thank you for letting me tell my story!

Sales of Merck's asthma and allergy drug Singulair dropped 1% to $1.1 billion for the second quarter. U.S. sales have been hurt by the recent introduction of an over-the-counter version of rival drug Zyrtec by Johnson & Johnson (JNJ), as well as concerns about the Food and Drug Administration's March alert of a possible association between Singulair and suicide and related behavioral side effects Got this off cnn money,i don't know but thought zyrtec and singulair were different drugs,my son at one time was prescribed both to take at bedtime

My son has been taking Singular as well as Advair and Zyrtec and Nasonix for the past 6 months. He is doing so well. He has not had to go to emergency, he has not been sick, and he has not had mood swings. If you look at the prescription information that comes with Singular, you can see what the side effects can be. My recommendation is to take your child off of them if they have a side effect. I contacted my Dr. and Merck is studying only 1 case with a child that had side effects, but they did not say if this child was on other Psych medicine at the same time. The 2 psych meds that have shown a bad interaction with Singular are Phenobarbital and Rifanpin (spelling may be wrong). With all the posts I have read, very few people indicate if they are taking other medications at the same time as Singular. My suggestion is that you consult your Dr. and then send your case to Merck for more studies. If all you are doing is posting on the web, you are not solving this issue with the makers of the medication.

Dear Friends,

Just want to reconfirm that this drug, that according to the Lab, present this side effects as "rarely" now we can see that it is not, I have a 2.5 year old boy, that is presenting these same side effects that you are mentioning. In a sudden he starts to act really nervous, his eyes turn red and cries while he tries to express something, but he does not know what is going on, in the meantime he has this truly visible crisis, his heartbeat goes up like hell, and his hands shakes. My wife and I got really scared the first time we experienced this with him, and we did not know what to think, we asked the Doctor and the stupid guy told us that he needed a shrink, but we did not believed it. Today he had the second same crisis, not as hard as the last one, and we discussed and came up with the idea to find out what were the side effects of this drug, and voila, is the gdm Singulair. I just can't believe that the Doctors that are prescribing these drugs do not warn the people that this may happen. The only thing that I can do is write my experience to you, thanking you for your attention, and spread the voice to the other parents that are around me that they take care of this and prevent their children to go through this process. I really feel like trash, because I did not do this before starting giving him this drug. Thanks for listening.
By the way this is an international problem, I am writing you from Mexico City.

My daughter has been off Singulair for approx 2 months and is back to her old self. Talkative and happy! How about contacting the media to see if they would be interested in doing a story on the problems that have been associated with this drug. Yesterday morning there was a story regarding the poor health of our children-high cholesterol etc, and my first thought hmm-wonder if they are on Singulair. I think if more light was put to this drug, maybe we could get answers faster.

After reading all the horror stories on here, me and my husband soon began to realize that we were having a lot of the side effects listed here and not listed on my son's actual Singulair prescription. The side effects my son had were behavioral changes, irrational behavior, inattentiveness, not able to stay on task or stay still -- in fact he broke his arm twice being so hyper, yelling, screaming and just plain mean.

We took our son off of Singulair as a trial for a few days. Immediately we began to notice differences in his behavior. He wasn't as agitated and quick to yell or get angry. (He's only 5 years old). He actually would be listening when we would speak to him. He would sit calmy and read books and the one huge thing he would do was look at us and smile. He even said to my husband once, "I love you Daddy," which just brought tears to our eyes. I never realized what a Singulair fog he was in and what it did to him. Here we were pretty close to getting him evaluated for ADHD or even Aspergers. So now we're in the same boat as others that are searching for other asthma meds to give my son. Right now we have gone back to Pulmicort, Xopenex, Nasonex and Allegra. I'm so glad I read this forum because I was desperately searching for answers for my sons behavioral issues. Oh, by the way he was on Singulair for 1-1/2 years.

I'm seeing some posts from parents who say their children have returned to normal after discontinuing the use of this medication. However, there seem to be a lot of diagnosed "ADHD" or "BIPOLAR" conditions. Are your children really returned to normal? Or have they been diagnosed with a psychological issue and are receiving treatment? There seems to be a connection here, even after discontinued use, especially male adolescents. Any thoughts?? The increase in cases of ADD, ADHD, AUTISM, etc has been multiplying at a very disturbing rate in the last 10 years. I'm thinking definite connection to the "new" breed of "receptor blockers". What is it triggering? Any thoughts out there? Lets post anyone with similar cases and see how many are out there.

I have only been taking singulair for about a month. I have noticed that I have become more irritable, grouchy, hateful and just numb, not really wanting to be around anyone, not caring about anyone else's feelings much. I also noticed I have become extremely lethargic, to the point of falling asleep at work as well as heart palpitations and stomach pains. I just started new birth control pills so at first assumed they were causing these side effects, that is until I looked up the side effects of this drug! I have over half of the side effects so I stopped it immediately and can already tell a difference in my mood. I have to sons age 11 and 14, both who have asthma and allergies. The took this medication for a few years with no side effects but have not taken it for about a year now. My youngest son however, has been diagnosed with ADHA and ODD and possibly BiPolar disorder. As I read the other posts, I realize the description of how their children act while on this drug is exactly how my son acts. I wonder if there can be irreversible permanent damage from taking this medicine? He has been on a number of ADHD drugs, none have helped except to make him stop eating and lose weight and he is small for his age, so I have taken him off everything. Has anyone else out there experienced what could be permanent damage from this drug in their children? Even after being off the drug for a year or so? If it could make me miserable within a month, what can it do when one takes it for years? Its sometimes hard to tell the effects of medicine on small children. My son prob starting taking it around 4 yrs old and took it til he was about 8 or 9. Just wondering if anyone else out there has had this happen to them or their children.

My son began taking singulair when he was 6. About that time we were hading into the school years. He was labeled as a "special" child from that time on. Impulsive, aggressive, angry, anti-social, etc. He had a hard time focusing at school and every day was a battle. About 5th grade, after 3 schools, he was diagnosed with ADHD. I never, ever thought that it could be this medication. He was on it for about 4 years off and on during allergy season. I transferred him to a private school for children with behavioral issues and as time went on through therapy and special schooling it seemed to get better. I look back now and see that our "good" times were when he finally went off it for good. The beginning of his Freshman year was great! He had a 3.58 GPA, making friends and finally happy. The unfortunate thing is now that puberty has really kicked in, we are back to the old behaviors but much worse. Impulsive, angry, anxious, afraid of the dark, afraid of death. Violent thoughts, impulsive and very unhappy. I can see now that my son never had ADHD. He was misdiagnosed because thier were no warnings at that time. I don't think it ever "goes away". Even after years of being off of it. Something with the puberty hormones is re-triggering this behavior. IT IS LONG TERM!!!!! Even after discontinued use. Please, please keep an eye on your children. I AM SO ANGRY FOR HIM!! Also, for me. Special school $400 month, psychologist appointments, $300 month, my poor Son in a dark place I can't get him out, PRICELESS. . .I want my Son just to be happy. Thank you all for sharing your stories, it gives me strength that I need for him.

I started singulair and now have a rash that is itchy. Is this a side effect?

HI,

As with many others I found singulair to be a miracle with asthma. No more rescue inhalers. I am not sure which of my current meds is causing the very vivid, often gruesome dreaming I have been having as THREE of them show this as a side effect. I am referring to Cymbalta, Xanax and Singulair. It may be that the combination of the three is just too much and is causing brain toxicity of some sort. I started cutting down the cymbalta, and also the Xanax days ago. I found myself still waking up remembering vivid dreams that I would rather forget. I remember them all like they just happened in living color and detail, days and weeks later. At first I thought it was interesting, but now I just want to FORGET THEM, anyone have ideas???? Help!!! ( I also developed depression and anxiety after being on singulair for several years which is how I ended up with the two additional meds.

Clinical trial of montelukast in the Netherlands.

I noticed two things:

1. The researcher states that sides effects are 10%.
2. The researcher will not allow patients to also take drugs which are metabolized by CYP2C8 because montelukast inhibits that as proved by in vitro (test tube) studies. American studies in vitro said yes montelukast is an inhibitor but in vivo (in people) that it didn't happen. I was always confused by that and would still like to know more
.
******

hi, im not sure what to do. my 3 1/2 year old daughter was today given the prescription for singulair. i voiced my concerns to the doctor after my friend telling me its no good due to the side effects.she said that there are risks and side effects with any drug you take but for some reason i don't feel right about this. don't doctors know better than this. anyway Would like to know if all the people who take singulair suffer some sort of side affects or is it minimal? or going by this side it looks like its probably best not to give it to her at all.

I was put on Singulair about 2 years ago because of my COPD. No allergies were ever mentioned by my Doctor. This site has been a god send for me.
Since starting Singulair I have been put on Digoxin for an irregular heart beat that I never had before. I have been put on Gabapentin for leg pain and cramping in my feet whenever I put my feet up or laid down to TRY and get to sleep. I have been put on so many pain killers for back pain, leg pain, neck pain I can't even count them all. I won't take them, they make me so sick. Now I find that I wake up with a headache every morning, feeling sick..oh yes, I was given medication for nausea also. And I don't want to forget the six months of experiencing never ending dizzy spells. That was another medication to ad to the list of ALL THE MEDICATIONS I HAVE TAKEN OVER THE PAST 2 YEARS for the side effects of Singulair. I stopped taking it a couple of days ago and I woke up this morning feeling so good. Oh, lets not forget the Xanax, Prozac and Cymbalta for depression.......OMG! I'm looking forward to see how many of these medications I can toss now that I've stopped taking Singulair. I just wish I had found this site two years ago, oh yeah, I am on Advair also. I've been, lets say "in a chronic bad mood" too. Some would say a "B". I've already noticed a difference there too.

My daughter, just turned 3, was put on Singulair this past January for allergies. She had chronic runny nose, sinusitis, coughing, often leading to infections. The allergist put her on Singulair combined with Hydroxyzine every night. Now that I have read these postings, I recall that we had one really disturbing episode with her, although I can't now recall exactly how long after starting the drugs. Like some others have described, she woke in the night, seemingly terrified and at the same time in extreme pain. We could not find any way to soothe her or relieve her pain - she simply fought and flipped around, alternately reaching for us and kicking us away while screaming and crying and writhing on the bed. After a time, maybe half an hour, it seemed to just pass and she finally went back to sleep. But then we endured a couple of months of repeated wakings at night, sometimes when she was restless for an hour or more, sometimes upset. She might wake 3, 4, or 5 times in one night.

Lately I have become concerned about her increasingly aggressive behavior towards us, but recently towards others. And I am also very concerned about her physical growth. She is 41" and over 40 pounds and turned 3 a week ago. I am now buying her size 5T clothes. I have finally gotten proactive (why did I wait??!) and consulted with her ped., who has agreed that we should screen her for anything we can. My daughter has been diagnosed with developmental delays (pre-Singulair) and is in a preschool with similar kids. We have been dealing with behavior issues for the last year, and I am astounded that an allergist would put her on Singulair with the current controversy about it's side effects. I took her off it immediately as soon as I found out there were negative reports - thankfully our experience has not been as extreme as many others. But I feel ill at what could have happened! I am now praying that she has not suffered any irreversible damage...

Bless all of you in your struggles.

I started taking Singulair and the first two days I felt better, but by the 3rd day I started feeling like I was trying to get sick. By day 8 I was in the Emergency Room with a very rapid heartbeat (166 beats per minute), and a severe Upper Respiratory Infection. They did blood and urine work, chest x-rays, CAT Scan, etc. and found nothing wrong with me. I kept telling them that I was having a reaction to the Singulair, and even though they never actually admitted it, they did say it was possible. I KNOW it was Singulair. I will NEVER take it again. They need to take it off the market. I was in the hospital for 3 days because of this dangerous drug!

My nephew is 7 and has been on Singulair for probably 4 years. His symptoms developed over time but recently have exploded. He has epilepsy so most of the things that he has experienced has been blamed on that. However, today his doctor took him off singulair and said he believes his symptoms are caused from the drug. He started having head drop seizures, fell out of his desk and cut his face one day. He has also been depressed, had severe anxiety attacks for the past 8 months. Several months ago, he started having such severe nightmares that it is almost impossible to get him to go to bed and go to sleep. Recently he began "seeing dead people" and "monsters" that we trying to kill him even when he was awake. He has also cried many nights with leg cramps and severe stomach pain. I will update this page in two - three weeks to let you know if these problems go away now that we have stopped the singulair.

In September of 2007 my then 13 year old daughter was put on Singular for mild asthma. At the time she was a straight A student, vice president of our school and a popular girl who's guidance counselor described as "the glue of her grade" because she was so well liked. In November she told me that she was struggling with advanced Latin and Science. She asked to drop down to on grade Latin so we did. In December her science teacher notified us that she had a C average. She told me that she thought she had ADD/ADHD and she couldn't keep up. At the same time she was having a lot of problems with friends at school and we just attributed it to being 14. 3 weeks ago we discovered that she is significantly behind in English and it was then that she told me that she is been having horrific night mares. She said that they usually involve someone killing her or her killing herself. She said that they were so graphic that she couldn't repeat it out loud. She also said that she would feel waves of anxiety that would come over her at school and she would act "witchy" to the kids in her class for no real reason. She said that sometimes when she is trying to do her homework she will read the same passage for 2 hours and still have no idea what it's about. She also said that the suicidal thoughts from her sleep happened during they day and that she had thoughts of her harming herself. Fortunately her pulminologist told us that this may be caused by singular and we immediately took her off of it which was 2 weeks ago. She has only had 1 "bad dream" not even a nightmare since. She had one anxiety attack 3 days after she was off it and she describes her moods as the "cloud lifting....slowly". Now, we have to pick up the pieces. Her grades have suffered, her friendships have suffered and most of all her self esteem is very low. I'm grateful that we found out the cause but I feel as if my daughter lost a year of her life and I worry that because Merck won't admit there are side effects we can't find out how long it remains in their system. Is anyone else concerned about the long term affect and has anyone pursued a class action suit to try to get this drug tested properly?

This is a follow-up. I have posted about our experience before, but to summarize: 6 year old boy on Singulair for over three years for Asthma. Drug worked wonders, but side effects developed so slowly that we thought those were "phases" that would go away. Side effects were just as everyone else reported: nightmares, fears, depression/sadness (we even went to a child psychologist since we thought this behavior was all due to father's deployment), aggressiveness, crying at the drop off a hat (like a 2 year old, not age appropriate), attention deficit, school performance dropped, and also, at the very end, obsessive compulsive behavior.
We stopped Singulair as soon as we heard about the FDA investigation (on NPR, about 6 to 7 weeks ago). Asthma has not worsened, thank goodness, so we make due with the Flovent for now. Most of the side effects were less prominent after some time, however the obsessive compulsive behavior stopped only a few days ago. We have better days, we have worse days, but slowly the better days outnumber the bad, aggressive, and negative ways.
What I read again and again in the postings is that we all assumed our children entered a bad "phase." A phase that just got worse and never ended!
Reading about the very same side effects in our children, over and over again, alarmed me. Taking my son off the Singulair and seeing the improvements, some faster some slower, totally convinced me. I will never ever have Singulair in my house again.

Both my sons have bad allergies. Both were recently prescribed Singulair after other drugs were not very effective. My oldest, 12, started feeling "strange" and asked to be taken off Singulair. He was not himself on the soccer field or at school. Since we stopped the medication, he has returned to normal. My 8 year old had a much worse reaction. He has bad mood swings and tonight became suicidal. He was searching the kitchen for knives to stab himself. He had fits on the carpet beating himself and the floor until I got him a pillow to take his aggression. My wife notified our doctor and school counselor. We're stopping his Singulair immediately.

concerned citizen,i enjoy reading your posts and research you have been so helpful,but i do have to say,i do expect the doctors that write prescriptions to do their homework and research on these drugs,i do feel that they should be extremely knowledgeable about what they are giving our children,that is why i pay them the big bucks.I told them of my concerns and they poo pooed me,when as it turns out now i was quite possibly right,i will asked them to do another blood test now he is not on meds,and if as i suspect it has gone down i will loudly shout i told you so and demand answers from them.I so often questioned the meds and was always made to feel dumb,Ignorance is not a defense and someone was very ignorant

My daughter has been off Singulair since March 29th. In my previous posting I explained that she had taken it for 2 years and last December started to experience stomach pain, and she became very anxious, agitated, and obsessive compulsive. We had every test possible and her anxiety only grew worse as the weeks went on. In February she was admitted for panic attacks and was given Paxil and Risperdal. When we stopped Singulair we noticed definite changes with her mood swings, personality, and affection. We saw a side of her that over time we forgot existed. She is so much better, but still on the medicines from her hospitalization. We have an appointment to discuss reducing these meds. But has SINGULAIR been out of her system long enough? She endured so much emotional stress that I know just stopping the Singulair will not be the cure all. Any input from anyone would be greatly appreciated.

I spent the weekend reading about the development of Singulair. The early studies recognized that the first phase of the acute asthma response bronco-constriction was probably not caused by leukotrienes. They identified histamines and prostaglandins as the probable sources. I don't think that changed because the Singulair literature states that it should not be considered as a treatment for that. Leukotrienes were a source of inflammation caused by eosinophils and mast cells present in greater numbers (than normal) in airway tissue. So, it was beneficial to find a way to decrease that.

The cysLT1 receptor was identified as source of the signals that tell the cells to produce leukotriene. The receptor, a gene, consist of 337 (they think) amino acids. They modified a compound that would bind to that receptor thus blocking the cells ability to produce leukotrienes. This compound is very specific. It was formulated to bind to the "model" receptor. This compound will not even bind to cysLT receptor sub-types. (That is the good thing.) There is an enormous amount of research that discusses the genetic variability of the chemical reactions that occur in the leukotriene (calling it this for simplicity) pathway. We are also seeing that a number of researchers would like to use gene profiles to predict whether patients will respond favorably to different asthma/allergy drugs. ALL PATIENTS HAVE A RIGHT TO KNOW IF IT IS INHERENT THAT SOME PEOPLE WILL NOT RESPOND TO SINGULAIR OR RESPOND ADVERSELY.

There are many studies from the 1998 era that conclude that montelukast is not effective for everyone. Those researchers stated that it can be predicted that those people who are going to respond favorably will do that within the first 14 days or so. That conclusion would be consistent with a genetic component for efficacy and safety of Singulair. Those doctors concluded that those who did not respond within that time frame should not take Singulair for fear of harming them. That makes good sense.

The Italian researchers wanted to know if there was more going on than blocking leukotrienes in the action of montelukast. They set up a "test tube" study regarding montelukast, the cysLT1 receptor, and some t-cells that they selected. Why? Researchers always have something on their minds. They observed the death of these particular t-cells.

Montelukast is a quinoline. We basically know of quinilines and quinolones as compounds that were invented as broad spectrum antibiotics. They work because they interference with bacterial DNA so they cannot replicate themselves. Montelukast is a quinoline modified to bind with the cysLT1 receptor (a gene) and prevent that gene from activating. That's consistent with what a quinoline/quinolone does.

So what does montelukast do in blood plasma if it does not bind to the receptor because of genetic mis-match? (If montelukast does bind, then a chemical reaction has occurred and the liver will break down the by-products. Montelukast metabolized in 10-12 hours.) What happens if it doesn't bind? How long before it breaks down? Does it produce toxic by-products?

I want to know what happens to lymphocytes such as t-cells just because montelukast is a quinoline. Maybe nothing but what's up with the Italians researchers? I want to know if montelukast has the capability to interfere with lymphocytes who can clone themselves. That could be a good thing under circumstances when these lymphocytes are causing inflammation. But it could be a bad thing in the case of normal individuals with no problems.

I want to know if the bad side effects are due to the fact that the body has to break down and metabolize a quinoline that did not bind to the receptor for which it was created. The side effects of Singulair are strangely similar to what is observed in the quinolones such as levaquin. I have not as yet been able to compare montelukast as a quinoline to levaquin as a quinolone. I am hoping to find something on these categories. There may be no reason to worry that they cause similar damage. But frankly, I think that there is. There is some terrible chit happening to some people. The scariest is the neurological damage.

All of these questions would be in the everybody pharma knows to ask category. I don't know where the answers are. I haven't found them as of yet. Maybe there are no answers. We have to remember that Singulair and Vioxx were released in the same year. They have continued to be drugs under the current executive management of Merck. If the Vioxx marketing promoters had their ghost writers, why not the Singulair marketing promoters. The genetic component appears to be widely accepted but we haven't heard one thing about even that.

I think that it is sad that maybe the marketing of Singulair as one stop shopping for asthma/allergies may have destroyed the original concept. I really think from reading the original work that they knew that they couldn't engineer a drug for one size fits all. Everybody gets harmed when information is withheld.

Shame on the allergist who yelled at the mother who wanted to discuss issues. Does he know exactly who is allergic to Singulair and who isn't? Get him a dunce hat. Just because Singulair is marketed for allergies does not mean that you cannot be allergic to it. See the power of Madison Avenue? The ad agencies focus group these drugs to death. The ad agencies cleverly craft the product information. A good piece of legislation would be to prohibit consumer drugs ads.

Chris555, what's your motivation here? Why do you keep coming back to tell us that all drugs have side effects? We know that. As someone else commented, we're not a bunch of idiots.

A significant number of us have children who have had MAJOR problems on Singulair. And we are absolutely certain that Singulair caused our children's problems. It is very likely that there are large numbers of children out there who are being erroneously medicated for problems stemming from Singulair. There may be children suffering from depression or suicidal ideation. Posting our stories about our children might actually help someone else's children.

I'd love to know why you feel that you need to convince us that Singulair may not be the cause of our children's problems. What's the point, exactly? What do you have to lose if Singulair gets proper labeling so other families don't have to go through what we've all been through?

I have come to the conclusion that our pediatricians, allergists and various other doctors, have been brainwashed by the drug reps,possibly even bribed. My friend took her son off of Singulair almost a month ago when I told her about all of this. He already suffers from a learning disability, but she feels that his ability has improved along with his disposition and complaints of various aches and pains. She took him for his usual appointment at his allergist and told him what she had done and why and he literally YELLED at her, calling her a fool and demanded that she put him back on it. She stood her ground and refused and now is under the impression that her son will be dismissed as a patient from that practice. That won't be a problem. From what I read and what I hear, a lot of doctors are dismissing the whole deal. They can't be bothered with finding out for themselves, what the truth really is. No, they might miss out on the "perks" from the drug reps, like free samples of the deadly drug, or free pens, or a chance at a vacation in the Bahamas, and the list goes on. The drug reps are a hazard. They lack education on the drugs that they are "dealing", and if they HAVE been educated and are still promoting it,
they are no better than the crack dealers in the alley.

I read that many of you blame Singulair for your side effects when you are also taking multiple drugs. As a public service, I put together a list of side effects from some of the other drugs mentioned on this site. These are by no means all the side effects listed for each drug. The first group is from allergy medications people have mentioned.
Zyrtec & Zyzol -
suicidal ideation, suicide, aggressive reaction, anaphylaxis, cholestasis, convulsions, glomerulonephritis, hallucinations, hemolytic anemia, hepatitis, orofacial dyskinesia, severe hypotension, stillbirth, thrombocytopenia.
abnormal thinking, agitation, amnesia, anxiety, decreased libido, depersonalization, depression, emotional liability, euphoria, impaired concentration, insomnia, nervousness, paroniria, sleep disorder.
accidental injury, asthenia, back pain, chest pain, enlarged abdomen, face edema, fever, generalized edema, hot flashes, increased weight, leg edema, malaise, nasal polyp, pain, pallor, periorbital edema, peripheral edema, rigors.

Benadryl-
Sedation, sleepiness, dizziness, disturbed coordination, fatigue, confusion, restlessness, excitation, nervousness, tremor, irritability, insomnia, euphoria, paresthesia, blurred vision, diplopia, vertigo, tinnitus, acute labyrinthitis, neuritis, convulsions. Epigastric distress, anorexia, nausea, vomiting, diarrhea, constipation, Urinary frequency, difficult urination, urinary retention, early menses

Allegra -
insomnia, nervousness, sleep disorders or paroniria, and hypersensitivity reactions (including anaphylaxis, urticaria, angioedema, chest tightness, dyspnea, flushing, pruritus, and rash). Back Pain, Stomach discomfort, Pan in extremity, Headache, Vomiting, Somnolence/Fatigue, diarrhea,

Claritin -
Hypotension; hypertension; palpitations; tachycardia; syncope, Headache; somnolence; fatigue, nervousness; hyperkinesia; paresthesia; dizziness; migraine; tremor; vertigo; impaired concentration; depression; agitation; anxiety;

I'm an 18 year old male and I've been taking Singulair for years; I don't even remember when I started taking it. I've had chronic sinusitis my whole life, and use a Singulair 10mg/ Allegra 180mg combo to control it. I never gave it a second thought. From my adolescent years on, I've been able to sleep (if undisturbed) for 15, 16+ hours a night, and have always felt like I was in a fog during everyday life. Getting out of bed has always been a terrible problem for me.

Throughout high school, I became progressively more depressed and apathetic toward school work, to the point where I dropped a number of classes my junior year. Got put on Prozac for a while, it helped a great deal with the depression, and seemed to give me enough energy to get through the week. I discontinued it after a year or so, everything was going okay (aside from mood swings and tiredness- explained away as symptoms of my age/hormones/going to bed too late), and then I went to college.

I had a mild depression that I think most people get upon leaving home for the first time, but the real problem was anxiety; I had a number of anxiety attacks, and decided to transfer to a school closer to home. I started Celexa and therapy- the celexa seems to take the edge off, but I fear its making me even more tired than before.

I've just heard about the whole Singulair controversy, and I am not taking it from here on out. I really hope that this whole ordeal was brought on primarily by the Singulair. After a month or two, I'll repost to report whether the symptoms went away.

I just read a few days ago that Merck is trying to get approval for a new drug. It is a combo of Singulair and the Shering pharm. co. drug Claritin. Isn't it nice to know that while we are suffering from this drug, Merck and another pharmaceutical company are trying to make more money on a drug that is supposed to be under investigation. Fortunately, the FDA is not approving it along with a few other drugs Merck is trying to push. This shows us how concerned they are with public health. They would sell us arsenic if they could get approval for it.

I discovered this site last Wednesday morning - without taking the time to list all of the grief I felt reading through the pediatric postings, I will briefly note my 4 year old daughter has been on Singulair for 2 years now. What I now realize is all the behavior issues, night screaming, etc. are so easily dismissed as stages of a toddler. She has suffered (as well as our family) every symptom and behavior listed by parents on this site with the exception of leg cramps.

Our entire family can see the dramatic results since taking her last pill last Tuesday night. The melt downs and tantrums are all but over, she even commented "hey, I listened right away" on the second day without Singulair. She is still having night terrors - I call them that because they are in no way a dream or nightmare, but rather agonizing moments that break our hearts to hear. I hope those will soon go away as well so her sleep pattern results in a restful night.

Am I angry that we have all suffered for 2 years only to find we have been basically poisoning her? Am I angry that for the 2 years her dad and I have sunk pretty low, feeling inadequate as a parent to teach and discipline our child? Am I angry that after 20 years of marriage, raising a great 16 year old in the midst of all this, we were to the point of the ADD, bipolar, etc. theory that would have been misdiagnosed? Heck no, we are all so thankful to have come across this site and are so giddy and excited to be happy again.

What I am angry about is this - when I called our pediatrician last Wednesday and relayed what I had seen on the Merck website for side effects added in recent months she had not heard this information and asked where I saw it. At that point I had not seen this site. I asked her how is it the well dressed pharmaceutical reps come in with doughnuts, exotic trips, etc. to market a drug with "ABC" treatments and "XYZ" side effects, continue to market the drug and never update the doctors when original selling points are altered - ie; new side effects.

The FDA website is troubling for two reasons: Merck is in charge of their own investigation regarding recent complaints and the FDA expects this to take 9 months. Gee, who gets to investigate themself? Secondly, in February the site notes the FDA and Merck are trying to find the best way to communicate the concerns being investigated to prescribes and patients. HELLO - we live in a world of real time, instant communication methods, two examples being the United States Postal Service and an internet connection.

Today is April 30 - a full two months after "trying to decide how to pass this information on" and my doctor, nor my pharmacist have received any information. Apparantly since we missed the story and coverage on Dateline we are out of luck.

I plan to start from ground zero to get our voices heard to change the way, or the law if you will, to implement an immediate communication link between the FDA and prescribes when an investigation such as this has been initiated. I realize Singulair has most likely benefited more humans than it has destroyed while on the drug and the FDA would have to clearly not communicate "panic". However, when a drug is used for pediatric treatments we need information quickly to assess on behalf of our children. In my case, since my daughter had been on the drug since 2 years old, I do not know what her "normal behavior" should be as that is the age they start to develop and show personality. Additionally, when enclosed prescribing information is updated with a prescription -MARK IT IN RED, "UPDATED INFORMATION". I read every ounce of information that accompanies a new prescription for any family member. I would NOT, however read the information every 30 days for an ongoing, long term prescription over the course of 2 years.

I am looking for anyone that may have started contact with a congressional representative or otherwise to change the communication to our doctors. Please note - I am in no way interested in any legal action regarding Singulair and our nightmare. We are moving forward and do not wish to live the nightmare one moment more. I simply want to see our doctors and pharmacists have vital information as it happens.

Thank you to all for sharing your experiences - I truly believe it is changing lives and making a difference. I am personally telling everyone I know about what is happening with our child and all of yours. Andy by the way, by telling one of my long time friends our amazing discovery, she realized she had been suffering from depression for some time and chalked it up to various things going on in her life. She had her last Singulair last week and feels tremendous! So keep the word going!

As an adult, I have had no problems with the drug. That being said, I wanted to remind readers that very few drugs, if any, are tested on children. As any good pediatrician will tell you, children are not just little adults. Drugs companies and doctors should not just adjust dosages and say that a drug is OK for kids. As a mom, I'm cautious to give my kids any medication that is new, including vaccines that are new, because I know testing has been limited with respect to children.

My 13 yr old daughter was put on Singulair along with Asmanex and Clarinex for her asthma about 6 weeks ago. Everything seemed to be going very well at first and her symptoms were starting to get controlled. I started noticing after about 3 to 4 weeks that her temper and attitude were getting much worse. Anyone with children this age knows what I mean but this was like a 180 degree turn for her. Her actions were becoming totally out of character. Before I knew it she would cry and get highly upset over the least little thing. Week 5 came around and things totally bottomed out. She came home from school and WAS NOT HERSELF. Made comments about how she hated her life and it was not worth living. Later that evening we had a big argument because I was telling her nothing was worth saying that. She went totally out of control and I had to physically restrain her to calm her down. It appeared everything was better so she went to her room. I went down to check on her and she calmly told me that she had taken advil and tylenol pm and things would be better for her forever now. We went to the ER where they made us wait for at least an hour, then finally took her back. She had to drink two cups of charcoal and was poked and prodded repeatedly. They did a catheter to get a urine sample. She was very cooperative but also was in a complete daze so who knows. The poor child couldn't even lift her head up when she started the vomiting to get rid of the drugs. It was very upsetting and sad. Her heart rate and blood pressure went very low and I really thought in the back of my mind that this was it. Finally, after several hours she started coming out of it and they sent us home. The next evening when she was starting to really come around she proceeded to tell me how she had been seeing a man walking around in her bedroom at night and she was afraid to go down there. Breaking down and crying telling me about all of the horrible nightmares she had been having recently and didn't know why. I thought what am I dealing with here? This just isn't her. Three days ago I heard about singulair in the news and looked it up on the internet. OH MY GOD THIS SOUNDED LIKE US!!!!! I immediately had her stop taking it and the next day phoned her asthma specialist who agreed she should stop now. We are going to watch her for two weeks and see if any symptoms return and then decide if she needs something else or will be fine on just the Asmanex. As a side note, she also mentioned being unable to concentrate in school (unable to do even the simplest math problems) and that her brain felt confused or like something was missing. She said this had been bothering her for several weeks. I know it was this drug. They really need to take this off the market NOW and stop flirting with disaster. The only reason I posted this was to let others know they are not alone.

Our son started taking Singulair when he was 2 for severe allergic rhinitis and cough variant asthma (in addition to Zyrtec, which didn’t control all of his symptoms). He is 5 now. For the last three years, he has been an increasingly violent, difficult, defiant, argumentative, volatile child who has intense mood swings--one minute he’s laughing uncontrollably, the next he’s weeping over nothing. His doctor and therapist recommended that we see a psychiatrist to have him evaluated for bipolar disorder, which used to be unknown in children. Because he has such chronic sleep problems, the doctor also suggested we take him off Singulair (and increase his Zyrtec dose) to see if it improved his sleep issues. Within a week, he was sleeping much better and was a calmer, happier, gentler boy. He suddenly could take “no” for an answer without flipping out and trying to hurt me. We thought that we were just in an unusual, calm window that would shift either to mania or intense sadness or both, any minute. We also thought that his behavior change might be due to sleeping better. We were enjoying the rare reprieve. Over the last weekend, his springtime allergies really flared up. We gave him Singulair on Monday and by noon, he was completely out of control. I had to strap him into his car seat at one point to keep him from hurting either me or himself. It finally occurred to me that Singulair might be causing his “bipolar” disorder. Of course, we stopped the Singulair. After two days he was a new boy. Yesterday, I Googled “Singulair bipolar children” and got a few hits. I am stunned to read how similar other families’ experiences have been to ours and I feel sick that we gave this drug to our child for three years.

Is there a potential explanation for the adverse psychiatric side effects of montelukast?

In my opinion, there are at least some very good clues based upon the work of the Chinese researchers.

A 2006 report indicated that they had localized (meaning found it was there) the CystLT1 receptor (same as the receptor that montelukast
Singulair blocks) in the neurons of the brain tissue of rats. In order to do that, they injected rat brain's with NMDA to cause a chemically induced state of excitotoxicity. Excitotoxicity is a common factor in Central Nervous System disease. They concluded that both 5-LOX and CystLT1 were upregulated by the excitotoxicity that they artificially created
with the NMDA. Therefore, there would be a potential link between neuron activity and CystLT1. Nerve cells are damaged by excitotoxicity. These researchers used NMDA to cause nerve damage which caused the CystLT1 to show up. NMDA was often used in human behavior studies to cause brain damage. They would then try to observe whether behavior was compromised to conclude what areas of the brain determined what behavioral response.

So I was thinking about the Chinese researchers as I was reading other posts. One post interested me particularly regarding the mother who described behavior that seemed like hypoglycemics when their snack doesn't arrive on time. So a light bulb went on. Glutamate, another excitotoxin, can build up in the brain to a level that is damaging if humans become excessively hypoglycemic. If glutamate concentration around the synaptic cleft reaches too high a level then neurons die. Clinically, it really does seem that many people experience things that sound like the effects of hypoglycemia. It could be only a coincidence. But then again, maybe not.

The Chinese researchers found the CystLT1 receptor in the rat brain neuron after brain damage. They found the CystLT1 receptor in the normal human brain in the microvascular endothelial cells and in neuron and glial-appearing cells in brain trauma or tumors.

What role does the CystLT1 play in brain function? If it exists in brain tissue, we can assume that it does have a function. If it plays a role in preventing or repairing neuron damage due to excitotoxins, then there would be a very direct link between Singulair and adverse psychiatric side effects.

http://www.chinaphar.com/1671-4083/27/1526.htm

The bottom line is that Merck owes people who take Singulair further research regarding it's effect on the brain.

I have communicated directly with Leslie Hendeles, a leading professor of pharmacology and pediatrics at the University of Florida who's direct quote to me was:
"In response to your last comment, I thing Singulair has modest efficacy, and if we take all of our patients off this drug, THEY WON'T SUFFER. This is NOT an important drug for pediatric asthma, as are inhaled corticosteroids."

Ironically, this is the same individual who was quoted in an ABC news article as saying:
"We have hundreds of children on Singulair and have never heard parents make complaints about psychiatric side effects. Moreover, there is no mechanism for this reaction … We will be telling our patients not to worry about this."

WAKE UP EVERYONE...THIS IS AN ADMITTEDLY OVERPRESECRIBED DRUG THAT HAS WORKED WELL FOR MANY, BUT HAS ALSO RUINED MANY LIVES.

The manner in which this drug is casually overprescribed by so many doctors is freakish. I firmly believe that this drug has caused countless misdiagnoses such as ADHD, Bipolar disorder and others. IT FUELS A GOOD PART OF THE ECONOMY TO PUT SO MANY PEOPLE ON THESE DRUGS. I BELIEVE THE PHARM INDUSTRY IS VERY CALCULATED IN THIS MANNER.

Question what your doctors tell you.
See my other posts under matthewct1. I dealt with a situation where my 5 yr. old son was on the road to being diagnosed with ADHD which couldn't have been further from the truth. Singulair changed him. Since he's been off Singulair everyone (teachers, pediatrician, family, etc.) unanimously agree that he does not show the ADHD symptoms like he did on Singulair.

Hello to everyone, I just came home from a parent teacher conference for my son who is 7 yrs. old, and heard the same old thing, "he is restless, impulsive and has a short attention span". He has been taking Singulair for about 3 yrs.. Since he has started school I have had these complaints and have also been told he displays symptoms of ADHD, which ironically has been for the last 3 years. Like any parent, I question" if I am doing something wrong with my parenting, is his diet good, etc. etc.", I am also a nurse, I realize that medications are needed and beneficial in some circumstances, however I firmly believe and was taught in nursing school that medication is last resort. That being said, I have been very adament about NOT giving my son ADHD medication after doing alot of research on the different meds and their side effects. So, we started him on all natural vitamins, changed his diet some ( kids got to have candy once in a while) and started a more structured routine( the best we can since we both work) and also enrolled him in Sylvan. The teacher says there is a 50% improvement but he is still impulsive and still does not pay attention like he "COULD", again suggesting he needs ADHD meds. I came home in tears and started to do more research online to see what else can I do besides putting him on psych meds?....Then I came accross this site, I just want to cry after reading all these posts. I wonder, could this be his problem, the Singulair?.. About a year ago he use to get up in the middle of the night, 5 out of 7 complaining of nightmares, hearing things at times, headaches, decreased appetite, stomach upset, all AT TIMES, not all the time so I never thought alot about side effects of Singulair. When the school started complaining I did look at side effects of Singulair and seen HYPERACTIVITY and mentioned it to his pediatrician and she shrugged it off saying she never heard of it being a problem. She's a great MD so I listened to her because his asthma was bad when he was younger and it is now under control. But then I think maybe he is outgrowing the asthma. I am afraid to stop Singulair and him have breathing problems again but then I can't help this strong feeling in my heart that says this may have been his problem with everything else all along. We are going to stop the Singulair tonight and see what happens. If anyone else has a child with asthma any suggestions for alternative treatment would be appreciated. I already know what's out there but sometimes it's nice to hear from another parent going through similar situs. Thanks for reading, Bobbie

I have been Singulair-free for 11 days now. I do not entertain any more suicidal thoughts, I feel MUCH happier just generally. I have cried, but haven't felt really low, just sad, normal-sad. I do have more difficulty breathing and tightness in my chest, but I am looking into adopting an anti-inflammatory diet. I have exercised more since stopping the Singulair, so I hope that will help long term with my lung function. I would definitely say I would rather feel some tightness in my chest or breathlessness going up stairs than intense sadness and irrational suicidal ideations. This life is much better than the one I had two weeks ago, and I know it's the same life, nothing has changed, just my perspective. I wonder if taking drugs off the market is going to be like putting up stop signs or traffic lights - we have to wait for a significant number of accidents before that move would be warranted. I really can't believe that all those years I thought it was me. I am a whole new person psychologically and it is because of an asthma medicine that is approved for KIDS! Amazing.

The new April 2008 issue of Reader's Digest has a long article on how the FDA approves drugs and the many problems associated with the agency entitled "Can We Trust the FDA?" The lack of oversight and the fraudulent studies conducted by the pharm industry is all there, it's no wonder this drug was approved. Please read.

I could not find the post from the mom of two who is a pharmacy student to reply to her.

My husband is a pharmacist with over 25 years hospital experience. he never questioned the doctors assumption that it would take 6 weeks to totally be out of his system. all drugs have some residual and cumulative or residual effects. it really isn't magically gone from your system in a set number of hours. especially a daily dose and more so in the elderly, and I have seen this first hand , when they are dehydrated or other wise compromised the drugs can stay in their system for a time and accumulate.

i will update on our son later today, he is doing much better two weeks off

I am a mental health professional. I was on Singulair for 6 years. After hearing of the psychiatric side effects, I stopped it. The suicidal ideations have stopped, the depression and anxiety are decreasing. This information should have been made public long before now. And to think that I had actually calculated whether I had enough drugs on hand to accomplish suicide. I hold Merck responsible for putting myself and others through this torment.

i am an adult with moderate to severe asthma. i also have an incredible number of allergies. i have been taking singulair for years. until last night at dinner with friends i hadn't even heard anything about these side effects. i have pretty much most of them. while it makes me angry, i am actually relieved that i'm not crazy. it's sort of weird. in the past few months my sleepwalking and insomnia have really gone up many levels. it's making me so tired non-functional at work. not good.
so. tonight will be my first night not taking it. i still take a few other drugs that could cause some side effects, but i hope that if nothing else, i can go back to sleeping at least a few hours at a time.
thank you all for posting all this information.

Previously posted 8 year old son w/ suicidal ideation and depression...I'm seeing comments about "inattentive." I've been saying my son is ADD for years....How many of you saw this possible side effect? Off of Singulair for 14 days now....behavior unbelievably improved.

I talked to my childs Dr today and she had no idea about all the problems with Singular but she did recommend that I take him off of it for a couple of months just to see if it helps with some of his symtoms or all of them.. But I also find it very discomforting that drug reps that promote these drugs to dr offices usually have no pharmacutical background at all that all they do is go tell the drs what they were told about the drug.. I think there needs to be guidelines in place for drug reps to have some sort of pharmacutical knowledge and background before taking these drugs to drs to get them to give it to us as adults and more for our childern something needs to be done. How many people have to be hurt before they take notice...
My thoughts a prayers go out to everyone who is dealing with this nightmare if you all are having as much problems with your children as I am we and mostly our children need all the prayers they can get.....

I am starting a new post in the hopes that others will see what I am trying to say about the delayed reaction in those that took Singulair for allergies.

If it is consistent that Singulair does not stop allergy symptoms immediately, then the pathways that eventually stop allergy symptoms involve a change in the mast cell function, development and migration (or some combination).

I asked this question for a reason. Are allergy symptoms stopped immediatedly. My question below:

I have a question that will help me continuing looking for information. I can understand that in the case of asthma that Singulair would provide immediate relief. If it is used for seasonal allergies or other allergies without asthma, does it work right away or does it take a period of days or weeks to be effective? If it takes time, could you tell me how long it took in your situation?

My thinking was going in the right direction if the answer below is consistent of everyone or most.

about 2 hours ago on Apr 11, 2008 by catherineevans, #7045
My granddaughter was put on Singulair for allergy symptoms without asthma. Itching, red eyes, terrible congestion, etc. dark circles under her eyes all the time. When we first put her on this, we didn't see any consistent results for 2-3 weeks, then it seemed to 'kick in.' I don't know if this helps. By the way, she was 9, now she's almost 12 and was immediately taken off when this story came out 2 weeks ago.

Then after seeing one response, I gave my reason for asking.

I asked this question because I have a theory of how montelukast really works for allergies as compared to how it works for asthma.

Asthma is a hyper-sensitive state that gets going because the mast cell has a receptor (the leukotriene receptor that Singulair blocks) that sends a signal along a pathway that causes lung tissue to have that extreme response - the wheezing, the airway constriction.

On the mast cell is another receptor the histamine receptor that causes the secretions that make our noses runs and and stuff up. This is not the same immune response as the asthma response. When I saw a post that somebody's doctor said that Singulair is an anti-histamine, NO it is NOT.

So if Singulair does not block histamine immediately and your child's allergies did not go away immediately, then maybe Singulair is working through some other means such as changing normal mast cell homeostasis.
I know that this seems like "what does this mean?" I am really writing this hoping to God that there are people reading this site that know what I am talking about.

Thank you so much for responding. Your answer actually told me what I wanted to know and confirmed my hypothesis. More answers will help. I hope others respond.

PLEASE respond about the length of time that allergies disappeared if you took Singulair for allergies.

Have any of you seen this site: http://www.askapatient.com/viewrating.asp?drug=20829&name=SINGULAIR - the side effects we all recently began discussing is documented from users and parents of users as far back as seven years ago!
Why is it that the FDA just became concerned and Merck had no clue of these reports?? Interesting and distressing wouldn't you say?

I just came back home from the dr. We made some tests and my 5 years old daughter is allergic to house dust mites and has beeing diagnosticated with athopic asthma. The dr. prescribed Singulair. Now, after reading all the posts, I freaked out and I have not idea what to do. I am really sorry I did't ask about side effect, but I considered, her beeing a dr, knows better than me. My thought now is: I'm not going to give my daughter Singulair.

My 6 year old son has been on Singulair for 2 years and I have noticed a big change in his behavior but it all started with leg cramps and falling down alot..I told my dr about what was going on but she told me that it was nothing to worry about that it is growing pains..Before he started the on the singulair he was always a happy go lucky kid never had problems with him back talking or ever really getting angry. Now that I read all these reports these are the problems I have with him now:
My child has never offered to hit, kick or slap me but in the past year he has gotten more aggressive not only toward me but others as well..
He is fearful of people now thinking that they are being mean to him or picking him out to pick on or make fun of.
He has problems of headaches on a regular basis but just thought it was due to his sinus infections...
I have also noticed that my child has started hurting himself like punching even slapping himself in the face when he gets really angery or fustrated about things..
Sometimes he has problems with nightmares but not that much..
He also has problems with stomach pain as well...
My concern is taking my son off Singulair with his asthma being under control right now and he just recently had sinus surgery but I think it will be the best thing for him just because I want my sweet child back not the aggressive and abusive child he is now.... That is why first thing in the morning he will be taking him to his dr to find another medication to put him on and take him off the Singulair....

UPDATE: Our nightmare with SINGULAIR has not ended! After reading "conerned citizens" report discussing the possiblility of Singulair causing asthma blew me away. My son was put on this drug for food allergies not asthma b/c they thought of his two anaphylaxsis episodes in 5 days. 1 food related the other unknown (maybe outdoor mold?) He had no prior issues with breathing.

He has been off of it for almost 2 weeks however over the last week he has slowly developed some breathing issues. After getting off of it, he still has his ear infection from the second day of being on it and last Friday after playing some basketball began to seem like he was winded so I brought him in. He was having trouble breathing. I called the Dr. and he said it could be excercised induced asthma. He is a very active boy who runs non stop and has NEVER had breathing issues before Singulair! It seemed to pass after a few hours. The next fews days he coughed a few times when playing and I thought what the heck is happening to him. Monday at school they didn't go outside so he was fine b/c he didn't run around. Tuesday, they came to get me b/c he was having trouble breathing and one of his teachers whose son has asthma said I think you better give him an inhaler. I called the Dr. ASAP and he approved us to borrow another child's. He freaked out and wouldn't let us give it to him. After 2 epi-shots in the previous weeks, he wanted nothing to do with that. At school the next day, we made him take the inhaler if he wanted to go out to playso he did. He didn't cough but a few times. No excercise at all. Then last night, he got really bad. He started to cough and couldn't stop to the point of gaging and it seemed as though he had developed a ton of phlem and kept trying to swallow. We ended up in the ER where we were told that he has asthma! I am so furious! I don't get this at all! If this report is accurate and my son got asthma by going on it - this will be devastating. We kept him home today from school and took him into the Dr. b/c he continued to cough all night. He is now on Flovent, Albuterol and has an enebulizer. I'm probably the only one of all of us who child did not have asthma to begin with.

Has anyone who did not have asthma before singulair now have any issues? Please let me know!