Singulair Drug Information Sheet, Jerky Movements, Upper Extremities, Tic Disorder, Hyperkinesia

Posted over a year ago

My son, who is 3 years old and 8 months old has been taking singulair for more than a month now and we noticed that he started having some kind of tic disorder. it started with eye widening and blinking then lately he had several unusual jerky movements ... more »

My son, who is 3 years old and 8 months old has been taking singulair for more than a month now and we noticed that he started having some kind of tic disorder. it started with eye widening and blinking then lately he had several unusual jerky movements of the neck and upper extremities. We do not know if this is a type of Hyperkinesia (exaggerated muscular movements) which is one of the side effects written in the manufacturer's drug information sheet. We are very concerned if we should start discontinuing the medication.

5 Replies

Micah - We thought my son was having seizures but the doctors say no. They think it is a movement disorder. He started with jerky movements and bad headaches. Now when he gets the headache accompanied with other indicators, sees lights, smells a wierd smell, he goes into a fit. Shaking arms clinching fingers shaking legs and buzzing with his mouth. He says it feels like someone is controling him. could you email me in greater detail what is happening and I will also share with you? mco96@hotmail.com

Posted over a year ago - Reply

Ileneg - Hi My son was on singulair for 2 mos and developed severe motor movement tics. Did your son's ever go away and how long did it take. Did you see behavior changes as welll. mine is more hyper.

Posted over a year ago - Reply

Alps_md2002 - Yes it did when we discontinued the singulair with the approval of his pediatrician. What we did was to shift to another brand (a local brand) of montelukast and the tick did not reappear. My son took this brand of Montelukast for several years and now he is off it and it seems his asthma attacks has improved.

Posted over a year ago - Reply

Momof5yearold - My 5 year old son was on Singulair for 2.5 weeks- took him off when he started blinking, squeezing eyes shut, wierd hand movements and neck bobbing tics. He said "his head" made him do these things and he couldn't stop. He also was severe nail biting which he never did before Singulair was on board. We had an ER visit as it was so bad ine night, two rounds of blood work done, an EEG and and MRI- all normal results. He seems to be improving slightly after almost 3 weeks off the drug, but he still has tics. Anyone have experience with how long he should be off the drug to recover? I'm hopeful this will pass!

Posted over a year ago - Reply

Keepcalm23 - Hi Momof5yearold-my son improved within 2 days of being off singulair (and he had been taking it for 5 years). He started with moving his eyes from side to side and then turned his head from side to side. His eyes would also quickly flick diagonally up...it was very scary. His MRI also came back normal, are still waiting for EEG results. He has only had one "seizure"(that I've seen) in the 3 weeks that he has been off singulair. Hang in there, I hope your soon keeps improving.

Posted over a year ago - Reply

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