Doxycycline Hyclate side effects

I had a cyst that became infected, and was prescribed Doxycycline - I've been taking it for about four days now and have been experiencing a lot of dizziness and lethargy. I got online to research, because dizziness is not listed as a potential side effect on the prescription info sheet I have at home, and I'm glad I found that others have experienced the same symptoms I have. I'm on a ten-day course for this med, so I guess I'll finish it, but I'm so woozy from the dizziness!

I have been taking Doryx for about 5 weeks now. About 3 weeks ago, I started noticing an increase in hair loss. Now, it is really falling out. My scalp feels itchy and hot. I went to my family doctor and I am waiting for the results. I am very concerned. I stopped taking the medication today. Has anyone else experienced this while taking Doxycycline Hyclate?

Oh my....... I have found people with the same symptoms, I feel normal now. I have been in and out of the hospital taking many different antibiotics. It started with strep throat, so they gave me erythromycin, and it lead me to pneumonia, and a big drop in my oxygen levels. They ended up admitting me and had me on a ventilator overnight, they gave me intense antibiotics of Clindamycin, which helped me somewhat, I now am out of the hospital and they switched me to Doxycycline for bronchitis, and Iv'e been having major hormone problems, heartburn, dizziness, hot flashes, I feel like I am out of my own body. I looked up on web md the side effects of this medication and none of these are included, then I came upon this site, and most of you are experiencing the same thing that I am.

i have been taking this medication too for acne. And same thing i feel nauseated and kinda dizzy feel like throwing up.

But i now know after few episodes of it that NEVER take it on empty stomach...make sure you eat something before taking it or eat something straight afterwards if taking on empty stomach.

I used to skip breakfast and take it first thing in morning and i felt real sick but now no more issues after figuring it out !!

Ok....I just took this pill 100mg this morning with a cup of coffee and sure enough, 25-30 min later....I got dizzy and extremely nauseated!! I even ate a slice of toast to try to calm my stomach, but nope, still felt sick and I chucked it all up!! Now last night around 9:30 and after dinner I took my first pill and felt absolutely fine?? Im still feeling a little weird right now so not sure if Im gonna continue or not??

I have a pretty severe form of cystic acne which I had a 9-month treatment for when i was 16. It went away completely after a course of accutane up until about 5 months ago when i started smoking cigarettes for the first time. within a few days, i had full blown acne again around my mouth. i'm 23 and its been literally six years of perfect skin i didn't even have to think about. i didn't realize it was the smoking until a month and a half ago. so i stopped, and the acne cut down drastically but not completely, so i went to the dermatologist for medication.

i was given doxycycline, 100mg twice a day. ive been taking it for a month and my skin is back to perfect however I feel like i'm forever feverish, i get extremely nauseated if i don't even enough to eat when i take it, and i get insane hot flashes within 30 mins of taking it. i'm basically sweating nonstop all day long everyday. i want to stop taking it but i don't want the acne to return. i cut down to one pill a day and already see some acne returning. i'm so glad i found this site -- none of the side effects ive seen listed include hot flashes or constant sweating. i also have pretty intense lower back pains

I was prescribed Doxycycline 1 dose twice a day for 2 weeks because of my lyme disease diagnosis. I am now at the end of the 2 weeks. For the first 9 days I felt pretty good. Lyme Disease symptoms were almost gone and my energy was very high. Now I am in a zoned out haze and I urinate like crazy. Whatever I drink just runs right through me. I feel tired and kind of achy. The craziest thing is the frequent urinating. I suppose I could have a urinary tract infection. This medication is messed up.

I don't know if this is a side effect of this medication but the right side of my throat is very sore.
I forgot about the sun exposure warning and was working in the sun all day yesterday. After only 30 minutes my skin was on fire! I ended up with a really bad sunburn. I work in the sun all the time and never burn, my skin is pretty tan. Take that warning serious, AVOID the sun! I'm in a lot of pain, especially my lips!

I was taking Doxy. Hyclate for 3 days prior to a breakout of an allergic reaction. Initially, the small bumps resembled flea bites or could even be mistaken for pimples; however, they later manifested into blisters onto my legs and arms. As with other (skin) allergic reactions, the bumps were red and itchy. I immediately notified my physician and began using hydrocortisone cream and benadryl to minimize the discomfort.

Thanks to all of you people now I know that there is nothing wrong with me and its just doxycycline. And I feel a lot less anxiety and panic attacks. :)

Thanks a lot to all of you people who share their experience with doxycycline. My dentist prescribed me doxycycline and 1 week later I started to feel bad just like some people described above I hade shortage of breath my legs and arms were shaking. I had anxiety and panic attack. The first time I experienced something like this I didn't know what was wrong with me. Normally I am healthy and very happy person. I am 27 years old go to the gim, I don't drink, I don't smoke. I have been in the hospital ER 4 times. They sad there is nothing wrong with me temperature is normal blood sample is normal AKG is normal. They gave me penicillin instead for the next 2 days I had even worse panic attacks. I stopped taking any antibiotics since then. The next day I felt much better. I had only some little panic attack. Today is my second day after taking antibiotic and I still feel some anxiety but not as bad as before. I would like to tell people who has similar side affects to avoid any sugar and bread in their diet this will significantly reduce anxiety and drink mint tea to relax It helps me a lot.

Hello, I started taking 100mgs twice a day three weeks ago for severe acne on my back and shoulders. (I am 40 have adult acne or back acne that never goes away) I just wanted to mention though that all of a sudden I noticed DEPRESSION and it took me awhile to realize that the Doxycycline was the only thing that was new. I have had bad depression before and am very familiar with it but it was completely gone. So, I am happy to see that maybe this med has caused others to get depression too. The nausea is nothing compared to mood disorders. My doctor said to stop taking it.

ok so i got sick ( pretty sure i caught it from school ) on a Friday sick as a dead man. lots of sneezing and runny nose ( and i mean machine gun sneezing with waterfalls of snot ) sometime during the night i start coughing out phlem and now wheezing when i breathe n i had a fever , dizziness , well diarrhea comes in play and on Saturday i ate completely nothing.. i was scared after this because i was starving and couldn't even force myself to eat something to stay alive.. well the only thing better about Sunday i was able to manage some cereal for breakfast and a fajita for dinner.. coming Monday i stayed home from school went to see my doctor and he prescribes me "doxycyline" the doctor told me to get tablets.. but i ended up with capsules.. well wen i got back home i took one and immediately felt a kind of high ( like right now ) .. yea so today is Tuesday and i chose to stay home again.. and i just took my 2nd pill... im really starving n i think the only reason why im still typing is because of this pill...yea i have a really bad stomach ache / headache ... loss of appetite kinda wish i was dead feeling... im 18 and should i stay with this med? i don't even know if i can go to school 2morrow i have a doctors pass only for mon and tues.. i cant sleep .. i taste and smell this horrible taste i cant describe .. this is only the 2nd pill....and if i die in a week or two i think its bc of this drug .......

I took tetracycline for 10 days (it had been prescribed for 30 days for emergency oral surgery...I had cracked a molar and it had to be extracted)

On the tenth day I was ready to die from the progressive side effects that were completetly intolerable.....I thought I was going to die and the fear was so unreal that I thought I was possessed by the devil or some evil force that was going to kill me and my family....it was horrific!!

Taking an anti-anxiety med Ativan helped but I also made the decision to stop taking the anti-biotic tetracycline...within 24 hours I felt fine....the racing thoughts, the heat, the chest pains and blinding fear were suddenly gone....I know now that this drug is not good for me and have asked the doctor for another antibiotic.....

If anyone experiences these symptoms stop taking this drug immediately....I took it for ten days and I wished I would have stopped sooner....

I especially don't recommend Tetracyline or any of its similarly-based antibiotics for anyone who suffers from depression or anxiety....

I hope my experience can help others understand the adverse side effects of this drug.

I have been taking doxycycline hyclate for acne for the past three weeks and find that I am now urinating a lot especially after intake of liquids and it seems as if I empty the same amount that I consume.This is really very annoying and inconvenient.

I too suddenly developed frequent urination for doxcycline.

I started this antibiotic because of symptoms my ER physician thought paralleled those of lyme disease... At first I had mild to severe nausea... which was assisted with the intake of a meal or snack. Those symptoms I could deal with... that and a wonderful yeast infection that occurred around the fifth day. The side affects that became unruly, were those of confusion, panic, paranoia (I became extremely jealous/thought my partner wanted to leave me/ and felt un-trusting of just about anyone near - people mocking me, wanting to avoid me, unloved me), and had random bouts of crying - which affected my libido tremendously.... one moment I was in the mood.. the next I wanted to be held in a fetal position and cry. I finished the 14 day regiment about three days ago, however I still have some side effects remaining... I still have panicky thoughts.. almost flash backs of past anxieties... as though I am relieving them again... and paranoia... that people are talking about me, or scheming. I can understand these behaviors if they were pertinently normal.. and a justified part of my general existence... however, I am generally a stable, upbeat and cheerful individual with normal reactions to stress... being that the only time I act reasonably irrational is around my period, where I feel fat and uncomfortable. The panic and rage I felt on this medication was coupled with insane thoughts and neurosis.

I do not recommend this to sensitive individuals.... or any one who is prone to medication side effects.... truly an awful experience... glad there is a support group. Still waiting to return back to normal.

I have been on doxy for 2 weeks for acne. I am 44 and get cysts under my skin. Not noticeable to anyone but me really. Finally yesterday I realized that every morning I wake up extremely fatigued and a 1/2 lb heavier. I am somewhat of an athlete and watch my diet and found this very strange. I have dark circles under my eyes and this incredible bloated look and feeling unlike anything I have every experienced, It has to be the doxy because that is the only new thing I have introduced in to my system. Ugh. I have to stop taking it. I'll deal with the zits.

Well, I have just started taking Doxy for a couple of days now and so far have noticed a change in bowel movements, appetite, a bit of nausea, my stomach has been feeling a bit bubbly and weird here and there. Also, it makes me feel high after taking it. And i know this sound funny but it makes my bottom itchy. Which is all really weird but over all I don't really care about the side effects as long as they dont become too extreme. I think as long as I take the medicine on terms that are best for me I will be just fine. I am just very glad to be getting rid of an infection that was causing me a lot more pain and discomfort than this med and will be glad when this is over. The biggest issue I have with the pills is getting them down my throat...I'm not a good pill taker and they make me gag. I can't imagine having to take them and deal with side effects for months at a time as some of you are doing so good luck to everyone!! And I also agree that doctors really do need to address the more serious side effects on this med! After coming to this site I will definitely take precautions.

I took Doxy for about 2 weeks as a remedy for a bump on my eyelid. This first exposure to Doxy seemed only to cause a little skin sensitivity and burning in my fingers, no big deal.

When my eye problem didn't go away, my eye doctor prescribed Doxy for a second time a month later. This time my side effects were much different. Within a couple hours of taking my first pill I felt a bit off, I felt anxious and unsettled. I Continued on the medication for a total of five days. During this time my side effects progressively worsened. The first few days I had very abstract thoughts, and began feeling strangely claustrophobic. By day three I was beginning to feel paranoid and fearful over just simple everyday things. Day five is when it all hit the fan. I started having difficulty breathing and feeling extreme tightness in my chest. My feelings of claustrophobia had also worsened to the point where I began having panic attacks, like I was trapped inside my own body. It was at this point I made a desperate attempt to search the internet for a possible cause, in hopes it might be the Doxy medication I was on. I was somewhat relieved to find this website and read that others had similar symptoms, maybe I wasn't losing my mind. I immediately quit taking the medication, but unfortunately the symptoms didn't go away for several more days. That night I was unable to sleep, I had mild nausea, and would wake up in the middle of the night in a panic and would shake uncontrollably. Lovely huh. It gets worse. I began to feel extreme fear and paranoia like I was going to die, or lose my kids and family. I began to feel if this didn't go away, I would not be able to go on. Thank God it did, and by day eight the extreme thoughts began to subside. I continued to have the breathing difficulty and mild depression for several days after, but the worst was over. Within a month I was back to normal.

I write this as a warning to those who are taking this med and feel anything close to this... stop taking it! I am a healthy, normal, 40 year old male, that has no history of mental issues, other than a "blue" day from time to time, and within six days I was entertaining thoughts of suicide. The psychological side effects of this drug NEED to be addressed. This is very serious stuff!!!!!!! Though it may be a small percentage of people that are susceptible, for those who are, it is a deep dark hole.

I am 21 years old and was prescribed this medication for "mild acne treatment." I have only been on this medication two days and already I am feel some side effects. My Dermatologist did not explain any side effects to me at all when prescribing this medication and gave me no instructions on even taking the medication. All he said was take one pill twice a day 1/2 hr - 1 hr after eating and thats all. I started feeling some symptoms this morning while at work. I got an upset stomach and started feeling extremely nauseous. I came home from work and immediately went to sleep. When I woke up, I felt even worse. I still feel nauseous and have upset stomach, but now I also have a loss of appetite, im tired, I feel weak and have no desire to do anything. I am debating still continuing this medication, since it is only for an acne treatment. I will probably continue for a few more days and if the side effects still persist, I will discontinue use. I had no idea why I all of a sudden felt this way, so decided to research a little. I am very glad I found this website, or else I would probably be wondering what the heck is going on. Thank you for all the posts about your side effects. Now I am aware of why I am feeling the way I am. Much appreciated...

Diagnosed with staff infection, took one pill last night two hours after eating, sat up in bed reading and went to sleep no problem. Today, ate two cereal bard at 6:30 a.m., and then took the pill at 9:00 with water. I became extremely hot and nauseated about 10 minutes later and drinking water did not help. The nausea was so bad that I could hardly keep vomiting and it has not subsided. I do not have a weak stomach and have never experienced this degree of nausea with any antibiotic.

Hi there - can anyone tell me of any suicides or attempted suicides by people taking this drug. We have just had this happen to a family member and the anxiety/depression symptoms mentioned by many seem to fit his symptoms. He was on Doxy for over 12 months as anti malaria medication

He went from a very capable fit man to a complete wreck.

I am on my fourth day of Doxy. Like many of the other posts I also experienced side effects not listed on my prescrip. info. sheet. The first day or so I did feel as though I was in a fog and was also very tired feeling. One night I felt like I had something in my throat and also burning in my throat. I was prescribed Doxy for having pneumonia so the tirdness may very well have been from that. The best advice that I can give that helped to relieve my side effects was to drink A LOT! of water when taking this medicine (20 oz) not the 8 oz advised. And to keep drinking water throughout the day and night. My side effects have all but gone away and I am starting to feel so much better.. Although I have not been in the sun it cannot be expressed enough that you should avoid the sun while on this med. And if you are having side effects try not to panic that will just intensify what is going on. Remember the side effects are sometimes better to have then the actual illness you are being treated for. But please drink tons of water. Also side effects can be reported to the FDA at 1-800-FDA-1088. If enough people call then maybe they will add new side effects to this med.

I have been having many of the same symptoms while taking Doxycycline for Rosacea. Sweating excessively during the day and night sweats. Aching stomach whether taken on empty stomach or with food. Tightness in chest and feeling of anxiety and very emotional. I think it's the Doxy, I have been tested for hyperthyroid, because the symptoms are similar. This med. makes me feel like I'm going crazy. Has anyone stopped and how long does it take for all symptoms to go away. Has anyone switched to Tetracycline and had no side effects.

Have been on med for two weeks for confirmed case of Lyme Disease. It being August, I spent a good deal of time in the sun. Even with constant application of 50 spf sunblock, ended up burned. Hands and feet, especially. After that initial (horrible) sunburn went away, have stayed inside. Somehow, yesterday my nose became very red. Ho ho ho. My lips are also burned, strangely, and seemed to have swollen to Angelina Jolie proportions... worried will continue to swell to Bubba Gump size. Will be interesting when I meet my eighth grade students for the first time tomorrow. As for nausea, not so bad. All in all, I'd much rather suffer these symptoms than continue the excruciating joint pain of the Lyme.

Been on a 7 day 100mg course for sinus infection. Ive felt dizziness, headaches, nausea, tingling in my arms and legs, heartburn, stomach cramps and my throat and glands swollen up. Also Ive been left with no energy and sleeping for 12 hours a night. As soon as I got in from work I was going straght to bed! Couldn't even be bothered getting a shower. Which is very unlike me as Im very active normally. My course finished 2 days ago and my heartburn remains as well as the headaches. And my sinus problem has not gone. This was not worth it! Never again!

I was prescribed a 10 day course of Doxycycline Hyclate for a strep infection six days ago. On the third day of my medication treatment, I experienced a feeling of exhaustion. On Day 5, the exhaustion became more severe with a little difficulty breathing and some "pin" like pain near my heart, while at work. I called my hospital and was advised to take an aspirin and to come into urgent care, as long as I deemed that it wasn't an emergency. After arriving at my hospital, I took an Xray, had blood drawn for multiple lab tests, hooked up to an EKG machine, and provided a urine sample. All of the test results thus far were negative. All of the specialists who I encountered while at the hospital conveyed to me that exhaustion isn't a side effect of this medication. After reading everyone else's postings about extreme fatigue being a side effect, I am convinced that it is indeed a side effect. I have got another four days to go on my medication therapy. I guess using my sick leave for the side effect isn't such a negative, as long as this medication cures my strep.

taking this drug for acne and have gained approx 15lbs has anybody else had this problem Doxcycline 100mg capsules.

I've gained 10lbs while taking doxycycl and work out 5 times a week! Has anyone else had this problem

I've been taking Doxycycline for two days now. I have a severs case of insomnia. I have not slept in over 36 hours, which is very unusual for me. I am experiencing shortness of breath, extremely exhausted (but can't sleep), nausea, dizziness, feeling of something in my throat, and weird weird moods (getting mad for no reason, which isn't usually me and people are noticing that something is different).
I'm supposed to be taking it for another 5 days for an infection. Any advice on what I should do? This whole no sleeping thing just isn't working for me.

It's been 2 days now since l've been using Doxycycline 100mg capsules for treating an infection which suppose to be a one week treatment but l'm experiencing burning in my vagina and throwing up alot . But after beening on this site and reading about the side effects others suffered l'm planning not to use it anymore.

I was given Doxycycline to prevent infection from an HSG procedure. I took one the night before the procedure, two the day of and one the morning after. So total of 4 capsules of 100mg each. I'm supposed to take the full course, which is 6 capsules, but I'm going to stop now. After the 4th capsule I started having bad stomach cramps, a bit of nausea and severe diarrhea. I know the risks of not completing the course but I'm not going through these stomach pains again. No more Doxy for me! I have a similar bad reaction years ago to an antibiotic called Augmentin. I guess I have to avoid those 2 kinds of antibiotics in the future. After reading all the posts, I can't believe they still prescribe Doxy to people. It seems horrible.

Been on 200mg a day now for 2 weeks. Feel like the skin on my upper back is burning, and my leg's sometimes burn... Is this common?

My back feels like the skin is burnt.

i have been taking doxy for a uti i took 100mg a total of 4 times i stopped taking it because i have been feeling horrible my stomach is tied in a knot i am exhausted my throat feels like something is constantly stuck in it i have been vomiting sweaty palms loss of appetite dizziness and it taste like crap to smoke a cigarette anyone else experiencing these side effects?

Began taking doxy 6 days ago for infected cut on my face. It worked great on the infection. However, the side effects are killing me. The first 3 days I had sore areas in my mouth, tongue, and one side of my throat, as well as congestion and cold-like symptoms. These are all listed as side effects. Also listed are stomach upset, diarrhea, and muscle aches, which I've had as well. It seems to make my GERD a little worse, but I'm careful not to lie down for an hour after taking it.

While the mouth & throat pain has cleared, the muscle aches are nearly unbearable. About 2 hours after taking the doxy I am almost floored with fatigue. At the same time diarrhea starts and menstrual spotting starts as well. On top of all that I'm finding myself more anxious, depressed, and physically exhausted. It's overwhelming.

My husband took doxy a month ago for epididymitis. He had serious mood issues, upset stomach, and sensitivity to heat as well as sun. He took his pills with food (he wasn't told not to) so his side effects were less severe, but I suspect it's because he wasn't absorbing as much of the medication.

I am happy i found this site. Uhh what shall i say, i used doxy a year ago i had nausea, temper and many others but i was happy soon there was not a single pimple and i stopped after sometime pimple again started and again i used. This was the time i would never like to remember time and again i had greatest nausea of all if i don't take with food and if i take with food i had to run toilet for every 30 seconds. i m better with these pimples.dog save the queen god save the pimple!!!!

Help...I just have taken 200 mg as prescribed. I feel like being in a different planet. Everything seems unreal. I cant eat. I feel nauseous. Would like to throw up. I get Hot Flashes following by Cold Flashes. I feel dizzy and would like to sleep...the worst thing, I am at work...

I started Adoxa (generic form of Doxy) about 2 weeks ago for a cyst. About 5 days after taking the med, I was swimming and my hands had the weirdest sensation... After I got out of the pool, my feet were on fire as were my hands. Thought I just had gotten sunburn, though I don't normally burn. A couple days later, I had a severe tingling/burning in my fingers and toes. Couldn't sleep because of the pain. This lasted 2 night and I stopped taking the Adoxa. Went to Urgent Care because the burning was not subsiding and and my toes and fingers were EXTREMELY sensitive. I couldn't even open a pop can. Dr. said I had Periphrial Neuropathy and it is not a side effect of the Adoxa that I was taking. Told me I had symptoms to a bigger problem. I have been off Adoxa now for 4 days and the tingling/burning/sensitivity has all gone away! I know that it is the Adoxa and will not ever take it again!!! Remember to trust your instincts when you take medications!!!!

23 years old im taking doxycycline for an std infection , im currently on day 4 , 2x 100mg daily ... and so far ive had no problems apart from being tired all the time and a few spots appearing on my chest.. 3 days to go , i will report back.

I started Doxycycline Hyclate several days ago (100 mg 2x daily) as part of 3 week regimen to treat Lyme Disease. I have had some stomach upset, a generally reduced appetite, and cottonmouth... but by far and large the biggest effect has been this overwhelming exhaustion.

Went to bad at 9:30 last night and woke up at 9:00 am this morning but could not drag myself outta bed until almost noon. Its now the middle of the afternoon and I feel like a complete zombie. Spacy and unmotivated, my head might as well be made of wood and can't pull it together to even take a shower yet.

I am a real outdoors guy and keep up a busy routine of work and exercise. Another 2 and a half weeks of this is gonna drive me nuts. I guess it is better than having Lyme, but does it get any easier?

Taking Doxycycline hyclate for bacterial infection. I am on day 6 and the headaches are getting worse. I woke up last night at 1 AM and felt Nausea and a severe headache. I have to take this with a small meal or I will be in the bathroom until my next dose. I have diarrhea, headaches, DEPRESSION, no patience with my kids or wife, no sexual feelings, tingling lips that are starting to crack in the corners, dry mouth and no energy to do anything. I feel better on it, then I did without taking it, but If this does not take care of the so called bacterial infection, then I will be asking for a different MED next time. This stuff is very tough on you and if you can get something with less side effects, GET IT!

I took this medication as a malarial prevention whilst traveling through India.
Never EVER again. My boyfriend had suffered from depression in the past and we had heard bad things about Larium in relation to anxiety and insomnia so we specifically asked our doctor for the malarial tablets with the least amount of side effects associated with that kind of stuff. He reassured us that there was no record of Doxcycline ever having caused those sorts of effects.
So off we went- we followed the instructions exactly and began our trip.
A week or so into India I began to notice shortness of breath and stomach pain- I put it down to typical India travelers upset and thought no more about it. A bit later I began to suffer moments of anxiety that were really out of character ( I've never suffered from anxiety or depression). I'm very well traveled ( I work in the travel industry and have traveled extensively in the Americas, Africa, Australasia and se Asia) and so although this was my first trip to India- i knew my anxiety had nothing to do with India itself. ( people kept telling me this but I loved India)
It came to a head on a overnight bus from Goa to Hampi- I was feeling really anxious, sweating and clammy, I couldn't sleep and my breathing was really tight. Eventually I had a full blown panic attack that was almost like a out of body experience- I couldn't see and I couldn't breath. The whole bus had to stop ( embarrassing!) at 3am in the morning. Eventually I managed to get back on and make it to the next town ( although not as far as Hampi) so we could take stock.
I was petrified and had no idea whatsoever what was going on. It never occurred to me it could be the malaria tablets as we had been so clear and our doctor so confident they didn't have these kinds of side effects.
I was worried about being on buses, trains even planes again since I didn't know what caused the attacks and I was terrified another one would happen. I had no valium or any other sort of thing that might have helped. In the end we had to cut our trip short and make it back to Mumbai - In Mumbai I suffered from another two panic attacks- one where I could see the walls closing in in our cheap hotel room. Shortness of breath, tightness all through my body, hysteria, blurry vision - it was awful! And also this ongoing pain and upset in my stomach.
I ended up cutting short a RTW trip that my boyfriend and I had been saving for for over a year and coming home to Australia 2 months early.
It was devastating and I still had no idea what was causing it. Finally a friend said her doctor had mentioned sleeplessness and anxiety as a rare side effect of this drug when she was taking it for some problems to do with vaginal bleeding and spotting. I started searching on the internet and was amazed to find loads of sights with people experiencing heaps of the side effects that I'd been told were never a problem with this drug!
Obviously Malaria is really serious but if I had been properly informed I could have made the decision to come off the drugs and look at alternate medication. For now - Im taking the risk of no malaria tablets at all for my next couple of trips (to Borneo- so not a major risk anyway) and will actually research much harder before taking anything again!

I've only been on Doxycycline Hyclate for 2 weeks - I am supposed to take it for 2 months to clear up my acne. The first side effect I experienced was the nausea/vomiting. I HAVE to eat something before I take it or it makes me throw up. I was sensitive to the sun, but the thing that was the most bothersome was the tingling in my feet & hands. When water touched them, they would tingle as if they were asleep. It was a very weird feeling. The worst side effect for me, though, are my mood swings. I get so angry I feel almost like I'm going to explode. I can't just drop it like I usually do - I just keep fighting & yelling - which is not like me. I've been saying things I don't mean & lashing out over stupid small things. I feel almost as if I'm going crazy. This is just the first 2 weeks, after reading this board, I'm wondering if it's even worth continuing. Supposedly, when this is prescribed for acne, most cases come back after you stop taking the pill. If it's going to come back anyways, I'd rather not put myself through this for 2 months...

Am on my second 3-week course of doxycycline for Lyme disease since the first go round didn't eradicate the infection. Have all the classic side effects mentioned, however the stomach ailments are GREATLY alleviated by taking a strong (70 billion parts per capsule) probiotic. Take it half way between the 2 doxycycline doses and although it isn't magic it does make a difference.
Although I have no appetite, I try to graze lightly on foods that appeal to me throughout the day and that seems to help with many of the horrific side effects.
Also, my MD suggested I take Aleve and NOT Ibuprofen for headaches since the Ibuprofen can cause a "headache" kickback (and causes stomach pain). Don't know if that's true, but the Aleve seems to help a little.
Worst side effects for me are utter exhaustion, dizziness, stomach pain, sore throat, and a head that hurts feels like it is filled with wet cotton. Also heart palpitations which may be part of the Lyme disease.
Hope some of this helps.

On doxycycline now for 3 weeks 100 mg twice per day. I can't stop yawning. I am so tired and it is difficult to concentrate.
Suppose to take the regimen for at least 6 weeks for chronic lyme disease. I skipped last night's dose. Although I am so tired I feel at night like I have a fever and do not sleep more than 6 hours.
-Lizydoo

I began Doxy in Sept of 2007. The first week into it I noticed the roof of my mouth felt strange, kind of rough and sore. I attributed it to the drug and figured it would go away once I was off of it. I began to get a very sore tongue which I attributed to candida....it was a little white too. I was on the drug for five weeks and the mouth symptoms never went away, just went on to become a chronic burning tongue and mouth. Scalded feelings in the mouth as though I had slurped boiling hot coffee. Also, noticed I began feeling very tired and melancholy on the drug....those symptoms have never really gone away. It's been nearly a year and I have tried multiple remedies for my mouth and nothing helps. Has anybody else had the burning and inflammation feeling in their oral cavity. It shows no outward signs.

I've been taking Doxy for only about a week now but since I've been taking it I have been experiencing a burning feeling in my stomach and extreme nausea. I came to this site today after throwing up my breakfast. Reading all these posts only to realize that Doxy not only caused my Nausea problem but problems in my relationship with my boyfriend! I had to apologize to him yesterday after blowing up (several times) crying for stupid reason and being extremely depressed. He thought I was unhappy with him and was about to break up but I told him that I thought my hormones were just not in synch. Now I realized that this drug caued my depression...eeesh! I am relieved to find out I am not crazy. I just got off the phone with him and he's relieved too. I'm going to continue my prescription because I only have a few more days left of it. I feel bad for those of you that were prescribed it for such a long period of time.

Taking this for "cellulites of the face" which I guess basically is a bacterial cyst on my chin that has caused an infection to go into my lymph nodes, which are all very swollen (even ones that I didn't know I had!). After taking 3 doses, we went to a water park for 8 hours (dumb move), and even putting SPF 50 on every 1/2 hour, my skin literally felt like it was melting off of my arms. And it was just my arms, no other part of my body. The second sunlight hit my arms, I immediately got this burning, tingly feeling. The morning after I was expecting to see that my arms were really burned, but they look fine. Other than that, so far I am just extremely tired.