Sigulair symptoms and conditions

My son (now 6) was put on Singulair at 8 months old for asthma and has been o it since. He has never had an appetite and is quite underweight. He complains of stomach pains and headaches daily. At age 4 he was sent to a pediatric GI and neurologist and any brain or gastro issues were ruled out. No one could figure out what was wrong. He has sensory issues and just recently was referred to a psychiatrist for occupational therapy. It was at this appointment that it was suggested that the Singulair is responsible and since he has been on it for the majority of his life we were unable to make the connection. He has been off of it for 2 weeks now and has not complained of headaches or stomach pain at all. His eating habits are slightly better, but not great. Hopefully his appetite will improve over time. I wish we had only known sooner. I feel like such a terrible mother!

I have been on Singulair for about one month and am experiencing extremely painful cramps/charlie horses in my legs. I am taking Singulair for adult onset asthma. Have a horrid cough, been told over the past 20 years, yes, 20 years, it is caused by allergies but no medication stops the coughing. Then they figured it had to be caused by acid reflux. So prilosec is prescribed. Still have the cough. Now this specialist deems it to be adult onset asthma. The Singulair does not stop the coughing - so what is next? Major leg cramps/charlie horses.

My son is 5 years old and has been on Sigulair since he was probably 2 years old. I never really thought anything of his behavior until recently. I took him to the doctor because he would not stop sniffing and said his nose felt stuffed up. The Dr. said his nose was completely clear. I asked her about the Singulair and she said I was the 2nd one this week whose child had recently developed a tic and that the other child was also on Singulair. She said she would call the Drug Rep. and let me know. By the time I got home she had called and I called her back. She said that tics occurred in a very small percentage of children taking singulair and to go ahead a stop taking it. I have also experienced severe behavioral problems ( tantrums unlike anything I have ever seen, telling myself and and my husband that he hates us, he tells us that he is stupid and that he doesn't love himself, he says he will cut his Dad's head off and that he wants us to go to jail.) There is more but just talking about for the first time, I am so upset that I never put 2&2 together. He has also had the leg pains and stomach pains. Everything I have read, fits my 5 year old to a"T". I am in awe over all of this. Today is his first day not taking it and I am looking forward to seeing some changes in him. Does anybody know if there are any long-term affects? Thank you to everyone who is open enough to talk about things and get information out there for people like me . I will never give my child Singulair again. Thank you so much

My 13 year old son has been on sigulair now for several years. I only give it to him during the school year. I have come to realize taht every fall when I restart it he complains of severe stomach aches. As well we have noticed a him morphing into a defiant, easily angered young man. Totally out of character for him. I have now taken him off and will hopefully be able to contro; his asthma with inhalers. No more singulair for us

Thank you for sharing your experiences with this medication. My 4 (almost 5) yo has been on Singulair for almost 2 years now for allergies. I've noticed over the past few months a slow change in his behavior/attitude, not positive changes. He's become an aggressive, angry child that can be set off in a split second over nothing. He's also getting worse with not wanting to go into other parts of our home alone. He won't even walk down a short hall to go to the bathroom alone - is afraid of I don't know what. Lately, he's also been obviously having bad dreams because he kicks and yells in his sleep. I've just chalked all of this up to his age. While taking a walk yesterday I ran into a neighbor that was telling me the doctors want to put her son on Singulair but because of the possible hyperactivity and other side effects she won't do it. I came home and found this site along with others describing similar side effects as my sons. As of last night, we took him off of Singulair. I'm curious to see if this is the problem. I'll keep you posted.

Added to my previous comment about seizures which my son developed, I have been worried about his growth as well. I realize that kids grow at different rates but my son's growth pattern is so different from my other children!! I have asked the Pediatrician about this several times but he always says that no studies have shown a link between Singulair and growth.Has anyone else wondered about this?

This fall, our 3-year old son went on singulair to combat seasonal allergies and "reactive airway disorder." Shortly after he started the medication, he started having terrible mood swings and when he would get angry, it would go into a rage. This was not typical for our son. We thought that he was entering the awful 3-year old stage and that he was starting to show behavior problems. We have been working very hard with him to help him control his anger and moods, but we will be taking him off singulair tonight to see if that makes a difference!

My 9 year old daughter has been on sigulair since she was 5. She just recently started having trouble with concentration and behavior. She is always sad and cries alot .She is an honor/gt student but just recently has been having trouble with her school work.She has also begun to hurt her brother and talks about how she wishes she was dead.We are really concerned and she began counseling. Her nuerologists says it could be depression but im thinking i should take her off singulair.She has had headaches,stomach pain,depression ,mood swings and weight gain.

I have a 4 year old son who was put on sigulair last spring to control his asthma. he did not take it all winter and has had no problem now that allergy season is back the dr. put him back on it and he has starteded wetting the bed. this is a child who has not wet in almost 6months but now all of a sudden he has been wetting for 2 weeks straight, anyone else have this problem??? let me know

My 6 year old son has had all of these more or less. He has been on Singulair for about 5 months. We took him off last Friday when he started having seizures. It is only now that we are connecting the things he has complained about. He is still going through testing but everytime a test is done it is negative. He is in perfect health. The dr.s are stumped. What happens is, he smells a wierd smell. Then he sees lights. After this he has a bad headache and becomes weak so he lays down. Shortly thereafter he stiffens and starts shaking his arms and legs while clinching his hands. He also grunts and makes a buzzing sound and appears as though he only breathes out. the dr.s say it is not seizures but movement disorder and if it is Singulair it should be out of his system within 3 days... He is still having the seizure type fits and its been a week since we took him off singulair. He is still losing his temper and having horrible dreams as well. Cat scan was normal, EEG was normal, blood work is ok, they want to do an MRI but does this sound familiar to anyone?

I have been on Singulair for 5 weeks. I moved from Orlando to Charlotte and got a sinus infection and noticed I had used my albuterol inhaler about once a day since being in Charlotte. So I went to the DR here and she said oh the allergy season has just started so we need to get you on Sigulair. I told her we had just moved and I was in the process of unpacking boxes, stress ect and really didn't think my asthma was that bad, it has always been very mild and contolled with predisone for a few days maybe once a year. She said Singulair would be great and I should start it right away, lets see how it will help. When I filled the prescription I noticed 12 refills, I was suspicious but decided to try it for a few days/weeks while we continued to get settled in. After about 3 days I did notice a slight improvem,ent in my allergies was it the medicine or maybe just getting the boxes out of the house. A few more days went by I was having a terrible time getting to sleep, staying alseep and when I did I was having horrible dreams. The kind that when I did wake up I was unsure what was real and what was a dream. My appetite was strange I just wanted alot of salty things and ate erratic. My moods have gottten increasingly worse and I have started kicking things that are in my way, I have NO patience for anything and really can't stand to be near me and it is hard to get away from me. I also have worked very hard to lose weight and had done well, in the past 5 weeks I have gained 7 pounds, this is not acceptable. My memory has gotten so bad that I will walk into one room and have to stand there for a minute to remember why I was heading that way. I ache and have muscle pain that is not explainable and if I do anything like take a walk or even clean the bathroom I feel like I have run a marathon. So I am not taking it anymore, I am hoping that nothing horrible will happen I think I will feel better, these side effects are wacky and can't be good for my body as a whole. I am 46 years old never been hospitalized for asthma. I am going to find a better way to handle any allergies or asthma that may come up. I am in winderment as to why this drug is touted a "miricle" drug and says by taking it one will have a normal life. I also wonder how many doctors actually take it themselves, I wish they would respond to this site and to our concerns.
Best to all and Thanks for sharing, it has helped me get off of this drug and know that I am not losing it.

my four year old son, after only one dose of sigulair has changed. extreme halucination/dreaming that has never happened before. we can only hope it goes away!!! we are 100 percent positive it is singulair that has caused the very abrupt change.

My 4 year old son has been taking Sigulair for three weeks. He has started showing signs of restlessness. The past two weeks he jhas becime very aggressive at school. I started questioning this medication a few weeks ago. I decided to research the side effects and I am so pleased to have found this sight. He was even restless in his sleep. The is out of character for him. I am stopping this medication immediately.