Reviews for SINGULAIR

479 ratings: (age 12 or younger)

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 ANTIASTHMATICS BRONCODILATORS

 Type: Rx Drug

  

SINGULAIR  (MONTELUKAST SODIUM):  Montelukast is used regularly to prevent the wheezing and shortness of breath caused by asthma and decrease the number of asthma attacks. Montelukast is also used before exercise to prevent breathing problems during exercise (bronchospasm). This medication can help decrease the number of times you need to use your rescue inhaler. This medication is also used to relieve symptoms of hay fever and allergic rhinitis (such as sneezing, stuffy/runny/itchy nose). This medication does not work right away and should not be used to treat sudden asthma attacks or other breathing problems. This drug works by blocking certain natural substances (leukotrienes) that may cause or worsen asthma and allergies. It helps make breathing easier by reducing swelling (inflammation) in the airways.   FDA Approval Date: 1998-02-20 (Sources: U.S. Centers for Medicare Services, FDA)

  

Results are sorted by Date added.

Key to Ratings: 1=LOW (I would not recommend taking this medicine.)
5=HIGH (this medicine cured me or helped me a great deal.)

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More on SINGULAIR: Reviews Summary  |  Drug Safety Information

RATING  REASONSIDE EFFECTS FOR SINGULAIRCOMMENTSSEXAGEDURATION/
DOSAGE
DATE ADDED
 
 1  allergies My 22 mo. old son started taking Singulair last week and has irritable and has been having trouble sleeping. He has always been the best sleeper out of my 3 sons. I remembered reading on the patient leaflet that this could be one of the possible side effects. After reading the comments on this site, I am planning to take my 3 year old, who has been on Singulair for a year and a half, off it too. I think this is what is causing his repeated waking at night with nightmares and hallucinations. M 1.5 7 days
5/21/2007
 5  Sinus infections and wheeezing My son became aggressive and moody after taking Singular for a week. He would hit and throw a tantrum for no apparent reason. He also became excessively rough with his 3 year old sister and 4 month old brother. He also hit my aunt whom he usuaaly is well behaved with. Other than behavior issues, he has free of runny noses, snot, coughing, and wheezing. It worked wonderfully for his allergies but I'm not sure the side affects are worth it. M 2 16 days
5/15/2007
 2   My 5-yr-old son is having severe tantrums, screaming, hitting, kicking, freaking out! He is also hallucinating. I take it also and have gained 15 pounds. Miserable. It does help with asthma, but not worth it. Both of our doctors say it can't cause they things, but this website has confirmed my fears. M 5 9 days
5/13/2007
 5  Asthma None noticed or suffered yet My 12 yr old son, was prescribed singulair after asthma medicines were increased to maximum doses allowed for his age as his sporting activities brought on severe asthma attacks, he was fine the rest of the time. Since taking medicine (Sept 06) he has not had one asthma attack and plays football 5 times a week, his steriod intake was reduced, and his blue inhaler has not been used in anger, although I still make him take a couple of puffs before sport. M 12 8 months
5/9/2007
 2  asthma Our six year old daughter started taking singulair (pediatric dose, of course) last monday and subsequently for another 3 nights. First night, "bad dream", her words, followed by a night spent coughing. Second night nightmares with more coughing. Third night nightmares and what I would only call hallucinations where she woke up and held her hands apart about two feet and clearly stated over and over again that she could not hold "the thing" while getting more and more frustrated and crying. Fell asleep finally only to wake up a few hours later with the worse coughing fit ever that lasted well over 1 hour and was repeated several times that night. Same thing on the fourth night. Enough! Talked to my pharmacist who suggested that I stop giving her Singulair and just continue with her regular asthma medicine, which is what I did. Next appointment with the asthma specialist is in September. I'll keep reading everyone's comments to see if I will start her on it ag F 6 4 days
5/8/2007
 1  Seasonal allergies/Asthma BEWARE!!! Started giving this to my 5 year old son about 4 weeks ago...about 2 weeks into the Singulair, he became a different boy to me: Inappropriate social playing, mumbles that he hates himself or that he is a bad boy, cries over almost anything, wakes up in a foul mood as if he is hungover, and worst of all he developed a SUDDEN onset of "tics". These tics came out of nowhere, and could pass for Tourettes: shrugging his shoulders, always scrathing and tapping his nose and ears, wiping the back of his neck, rolling his eyes. Yesterday he got so bad he started doing all of them at once. We called our allergist, who said although it is rare to see, he had no other choice than to assume it was from the Singulair and advised us to take him off ASAP. KEEP YOUR PRECIOUS CHILDREN AWAY FROM THIS DRUG!!! WE HATED TO SEE OUR SON HAVE COUGHING FITS IN THE MIDDLE OF THE NIGHT FOLLOWED BY THE OCCASIONAL VOMITTING...BUT I'D RATHER HAVE HIM GO THROUGH THAT THEN PUT POISON IN HIS SYSTEM AND COMPLETELY ALTER HIS PERSONALITY TO THE POINT WHERE HE IS A SOCIAL OUTCAST AND COMPLETELY DEPRESSED!! I'D RATHER HAVE A CHILD WHO COUGHS THAN A CHILD WHO HATES HIMSELF, CRIES ALL THE TIMES, AND CANNOT GO TO THE PLAYGROUND BECAUSE HE IS WALKING AROUND WITH "VOLUNTARY" TOURETTES. IT IS ONE THING TO ACTUALLY HAVE TOURETTES AND HAVE TO LEARN TO LIVE WITH IT...BUT WHY WOULD WE INFLICT THIS ON OUR CHILDREN IF WE CAN HELP IT?????? M 5 4 weeks
5/5/2007
 1  upper respiratory/asthma/allergies Our high energy, 4 year old son WAS on Singulair for 1.5 years. He showed many of the classic symptoms of being on this drug. Very aggressive behavior, sensitive to small issues, moody, lack of focus/concentration, cried ALL of the time over NOTHING, fight, kick, night terrors and complain of leg cramps...I could go on and on... He often said to us, "I try to control myself, but I can't." It broke our hearts. He was asked to leave a private home daycare because of his aggressive behavior. His pediatrician sent us to 2 behaviorists - NO ONE questioned the meds he was on. It wasn't until my husband forgot to give him the meds for a couple of nights. His teacher even noticed the change and said, "he's loving & funny" and she noticed a significant change in his behavior also. I found this website and it was like reading our life. His pediatrician & pharmacist both said very few children show side effects, however, we completely disagree. We've had 3 other friends take their children off the drug & also say there's quite a difference. The FDA needs to take a closer look at prescribing this for children. After reading this site it appears it effects children differently than adults (I'm on it & don't have any symptoms like this, age 39). I know medications have different side M 4 1.5 years
5/2/2007
 1  yes my 19 month old son was on it for 4 weeks, we started to notice a very big change on him, for the worst, he would not play, constantly crying, just laiding down on the floor, it wasn't him, he is a active little boy, but became inactive, doctor's kept telling me its his teeth, as I read about the side effect, I was so shock to see that my little boy was going through that, I took him off, and have seen a great improvement in him, he's playing, sleeping well, the way he used to be before taking singulair, his doctor refuses to believe it had anything to do with the mediction, me as his mother has seen a great improvement in my son, since I took him off the singulair, I feel it should not be given to children M 2 4 days
5/2/2007
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 3  allergies My daughter has been on this for several years. While it has helped her allergies she complains of leg aches, stomach aches, is very emotional, does not sleep at night and has nightmares. I thought it was just the terrible two's going into the four's but now am going to take her off this medicine and see what happens. F 4 2 years
4/30/2007
 2  allergies/asthmatic bronchitis sensitivity, mood swings My son has been taking this for about 6 months now and is very moody. He cries over everything. I am going to stop this med. and see what happens. M 1 6 months
4/30/2007
 1  Allergies My son was 3,5 yrs old when he was prescribed with the medicine. He started having bad nightmares, woudl scream in the midle of the night with his eyes closed and when i went ot his room and he heard me, he would go back to sleep but this would keep on going. Also, extreme sensitiviy, lack of concentration, irritability. I would rather have him have minor symptoms of allergies and manage those rather than have him troubled with the side effects M 4 40 days
4/30/2007
 1  Asthma psychotic thoughts, seeing and hearing things not there. Severely depressed, facial ticks, crying for long periods of time and not know why, worried all the time, severe nightmares, unable to distinguish between imagined thoughts and real events, they just started to blur together, paranoid (thinking people were talking about him and looking at him, even following him. The only thing I can implore is to any parent who cares about their child - Never give this medicine to your son or daughter. It has taken away almost 2 years of our lives from us. I am having a hard time forgiving myself for not figuring it out sooner. I have taken my poor son off of this medicine about 4 wks ago and he is about 95% better. Shame on you Merck! I filed a complaint with Merck and the FDA. This should be taken off the market yesterday. M 8 1.75 years
4/24/2007
 1  mild asthma / allergies irritability, anxiety, poor appetite, muscle soreness, nightmares, hallucinations, quick to tears, restlessness, dilated pupils, bruising, behavior problems in school BEWARE of this drug in children. Symptoms of side effects are not always obvious. This drug caused harm to my child physically and emotionally for 3 years. Merck should be forced to make parents and physicians more aware of the side effects and the rate of occurence. After discontinuation, it took 2 weeks to see the dramatic improvements. M 6 3 years
4/21/2007
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 1  asthma/allergies My 4 yr. old son began having huge meltdowns which would last for and hour or so. He is usually very easy going, but was now having rages in which he would cry, scream, bite, kick, hit, and require someone to hold him to keep him from doing these things. Then, afterwards he would say he didn't know why he got so upset. I knew something had changed because he had never had meltdowns like this before. I realized that they started about 3days after he began taking Singulair. We stopped the medication about 3 days ago and he is gradually getting back to his normal personality. I think this medication should be researched further in children because of all of the negative behavior side effects. M 4 7 days
4/20/2007
 1  Asthma & Allergies Hallucinations (visualized things like skeletons coming out of the walls, etc., & voices), Morbid or "Bad Thoughts" OCD (obsessive compulsive disorder), very violent thoughts of hurting people or animals, facial ticks, frequent urination, bad dreams, severe headaches, depression, aggression, deep sadness for NO reason, constant confessions, worrying about things that hadn't happened, thoughts of death, became antisocial (couldn't make friends anymore)..... you name it! THIS IS POISON! BEWARE! My 9 yr. old son was diagnosed with Morbid OCD after he had been taking Singulair for a short time. It started off slowly then got worse and worse as time went on. I took him to specialists, had every test imaginable done on him. I was told he had a severe thought disorder. The doctors tried to put him on antipsychotics, antidepressants, etc. I refused. I REFUSED to believe that my emotionally healthy, sweet and loving son could "develop" this disorder for no reason and so quickly. Unfortunately for my sweet boy, he lived through this nightmare for almost 2 years. It has scarred him so emotionally there are no words. I had taken him off the Singulair a few months ago and his OCD had started to go away then it was just gone. (I still didn't associate it with his OCD) About a month ago his asthma and allergies got bad again and his doctor told me I really needed to put him back on Singular. I did. I noticed signs of his OCD within a couple/few days and b M 9 2 years
4/10/2007
 1  seasonal allergies High fever,watery stools, agressive behavior, nightmares, joint pain, anxiety, moodiness The first week after we started my son, (3.5 years) on it, He had an extremely high fever (104.7) for a week. We thought he may have been coming down with a cold/flu. He also had complaints of not being able to walk because his legs hurt. He stopped wanting to go to school, and started to hit his sister, then he would cry about it because he didn't know why he had hit her. He wanted nothing to do with me(his mom) He refused to even hug me. When he would hug me, he would growl and be so rough with me. But he was fine with his dad most the time. We never put these things together, we just thought it was his terrible 3's .I was feeling myself begining to lose patience with him. He was acting out and never listening. Before the singulair he would sit and play for hours , or "read" books all by himself for quite a long time, but once he started taking singulair, it was black and white. I ran out of his singulair for almost a week, then started him on it again. The first nite, h F 3.5 38 days
4/5/2007
 1  Allergies My 4 year old daughter was halicunating. She would sit up in bed and scream for me to cover her eyes. Each night she saw bubbles that would "painfully" pop by her face. Also, she wet the bed for the first time in 1.5 years. She cries over every little thing and is emotional. I am stopping this medication right now. I can't believe this is on the market! I am furious! F 4 3 months
4/4/2007
 3  childhood reactive airway disease irritability, aggression, waking up at night yelling, irrational behavior significantly improved daughter's breathing but turned her into 'dr. jekyll and mr. hyde'. stopped the med and her personality improved but her breathing worsened. started again 2 days ago, but stopping today...can't stand the mood swings and sensitivity. i hope we find an alternative to singulair because i really don't want her to be on it. F 4 5 months
3/21/2007
 1  childhood asthma My son took singulair once a day and also receives injections to prevent allergy related asthma attacks. Over a year after taking this medicine my first grader told me that he was sad sometimes and he didn't know why. He said that he had been feeling sad off and on since kindergarten--this is when he had his first attack and started medication. Also my son would wake up crying at night or even whimper in his sleep but I thought that it was just nightmares. After stopping the singular two weeks ago, my son immediately felt better and stopped crying at night. What makes these side effects so terrifying is that it is happening in young children who sometimes have difficulty expressing their feelings or even identifying their emotions. It breaks my heart that my son suffered with bouts of sadness for over a year without me knowing it. If your child must be on singular please be sure to communicate with them to make sure that they are not suffering from short periods of depression. Be very cautious. I was unable to find any information on the drug company's website regarding depression. My son's specialist said that she had not heard of this and also that she was unaware of any medical studies regarding night crying and depression in children while on this drug. This website was my only resource and it has helped my son's quality of life. M 6 1.5 years
3/8/2007
 1  Allergy & Asthma Treatment We administered the 4 mg chewable to our 2.5 year old at 8 a.m. the next day after our allergist visit and noticed a huge 'meltdown' from the time we picked him up from his day care (3:30 p.m.) until we finally calmed him down and got him to sleep at 7:15 p.m. While we originally dismissed this behavior because we occasionally have challenges with our son (as all parents do), my wife and I could not believe the longevity, severity and marked difference of this episode when compared to his usual 'meltdowns'. There were no other differences in his life this past few days that we can attribute his behavior change to other than the drug [Montelukast sodium] he took about 12 hours prior... he has slept normally, eaten normally and is entrenched in his normal everyday schedule - except the introduction of this Montelukast sodium and Aspartame to his system. In reading the comments from other 2-9 year olds on Singulair from this website the side effects are all remarkably similar. Angry, Our physician (Allergist) should have known about this website and these side effects. When we asked our physician (Allergist) about the effects, this physician (Allergist) did not mention this at all. We asked two or three times to make sure that this physician (Allergist) came forth with all about this medication. No warning from our physician (Allergist) about this type of side effect. M 2.5 1 days
3/5/2007

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