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)

  

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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
 
 2  allergies My three year old son was put on Singulair due to his allergies, however over the course of three months we noticed that he had become a child we did not know. He was very hyper, moody, irritable, and aggressive. These characteristics were totally opposite of his fun-loving, happy-go-lucky behavior prior to this medication. We finally took a chance (before doing research) and took him off of the medication and within 24 hours he was back to his normal self! This road was definitely a rocky road, even to the point where we were questioning our ability as parents! BE ADVISED!!!! hyper activity, aggressiveness, moodiness, irritability M 3 3 months
8/16/2006
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 3  Allergies/Asthma Diarrhea, abdominal cramps, irritability, very dramatic behavior (crying and screaming over anything and everything), lack of focus-unable to sit still, aggressive behavior, anxiety, hyperactivity, severe nightmares My son is 4 1/2 years old and has been on singulair for 3 years; this drug definitely helps prevent his allergy related asthma attacks, he has needed his inhaler maybe 6 times since he started on this drug. HOWEVER, we accidentally forgot to refill his prescription over Christmas vacation (Dec 2005) and within two days we noticed a dramatic change in his behavior; he was calm (very little drama), focused, happy, cooperative, just a happy 4 year old boy. We contacted our Family Doctor and he advised that the negative behavior, (that we always thought was his normal behavior), could possibly be a result of the Singulair and we decided to keep him off the drug to test this theory. His daycare giver and preschool teachers all noticed a dramatic positive change in his behavior. After a month off the drug we had to put him back on it as his asthma flared up again. The negative behavior came back full force and is still with us to date...the positives have outweighed the negatives. We recentl M 4 3 years
8/9/2006
 1  asthma sudden negative change in mood and behavior. grand mal seizure M 9 6 weeks
6/8/2006
 2  allergy/sinus nightmares, difficulty sleeping, depression (when she is normally a very happy girl), anxiety, lots of crying (not able to explain why) It worked wonders for my daughter last year when she took it by itself for about two weeks to control nasal congestion and cough. It was prescribed again this year on a longer basis, but this time it did not work so well on its own. Three more meds were then prescribed along with the Singulair. After 2.5 months of Singulair alone and 3 more weeks of the combined meds, her congestion and cough have not gone away and she has been having all these BAD side effects for a week now. She cries all day for no reason, doesn't want to stay in Pre-K (which she loves), cries in her sleep, and has nightmares every night. The Dr. doesn't think it has anything to do with Singulair, but after reading all these comments I will definitely STOP giving it to her. I was so concerned about her behavioral changes that I thought she needed a psychologist. Now I know better and I hope she goes back to normal very soon. F 4 3 months
5/5/2006
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 1  Allergies My 4 year old son has been taking Singulair for three weeks. We immediately saw a behavior change. He became hyper and aggressive at school. He had an episode where ittook three teachers an hour and a half to calm him down. He said he doesn't know why he got so upset. He has been competely out of character for the past couple of weeks. I am so glad I started to research this medication. Last night was his last and final dose. My son is somewhat excited anyway, this took him over the top. I wish healthcare providers would let parents know the possible side effects of this medication. M 4 3 weeks
4/26/2006
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 1  Asthma & Allergies We tried my daughter on this twice, at 6 months and 15 months. Both times she became extremely crabby, screaming, throwing herself on the floor, holding her breath, freaking out!! She didn't sleep well, screamed out at night in her sleep. It seemed to help her symptoms tremendously, but the side effects were terrible. I was afraid to try this for my daughter the second time and rightfully so. My husband and I agreed this will be the last time and we will be much more cautious with the trials of allergy medication in the future. F 1 7 days
4/17/2006
 1  allergies-pollen My son has been moody, gets angery , irritable and hyper beyond what a normal 5 year should be I dont think this medicine is good for children . Perhaps because they are not yet in control of there mood changes due too the medicine. M 5 1 days
4/14/2006
 5  seasonal allergy's None. We are very happy with it! I never noticed any behavior changes with her. In fact she was happier because of the relief it gave her. My daughter started taking it at age 2 to aleviate her allergy symptoms. She has enlarged tonsils and when her allergy symptoms would act up (runny nose, watery eyes, sneezing, congestion)she would end up with tonsilitis and an ear infection. Once she started on Singulair, all of those went away. She stopped getting sick. And her summer was so much better. She felt good everyday. We used the 4mg granular in her juice every morning. It was very easy to give. We stop it after the first freeze then start up again in the spring. F 3 6 months
4/5/2006
 1  Son taking it for reactive airway After approx. 45 days, my three-year old son became increasingly aggressive, mean, and very agitated all the time. He bit and hit and wouldn't sit still. He said he was a "bad guy". I would NOT recommend this drug for children - particularly children who are not yet fully verbal. It took me a good 30 days to fully "see" what was happening. This is a HORRIBLE drug for children ... very disruptive to families. M 3 45 days
4/4/2006
 1  asthma allergies sinus infections night terrors, more sinus infections, severe leg pain, agressive behavior F 7 3 days
3/22/2006
 2  Croup/asthma-type cough Turned sweet, laid-back child (3 yrs) into a terror. Our son was full of anger, lashed out constantly and cried like he did when he was a baby. At night, he talked in his sleep and was grinding his teeth so loud we could hear it in our room. PARENTS BEWARE OF BEHAVIOR CHANGES! M 3 2 days
3/12/2006
 1  For asthma during cold/flu season My son took this for 4 months, until we realized our son had become someone he and I both didn't know. He was moody, angry, had trouble concentrating (which had NEVER been a problem before), felt sad A LOT and didn't know why, had trouble sleeping (had never been a problem before, even as a newborn), nightmares every night...overall very unhappy and sad about being unhappy because he didn't know why he felt the way he did. Cannot believe I didn't figure it out sooner. He stopped taking it over 2 weeks ago....and I am happy to report he is sleeping like a baby, laughing again and being more positive about everything in general! I have my son back! It's unfortunate that more doctors do not mention the possibility of these kinds of negative side effects. They don't really know how a medication might effect our children. Since no one, including myself, is going to allow drug testing on our children, Rx companies only know side effects for adults! M 8 4 months
2/24/2006
 1  seasonal allerigies/asthma my son's behavior changed dramatically after 5 days on this drug. he became aggressive, crazy, ultra-sensitive. i took him off after finding this web site. thank you all!! he is back to normal after three days off and using nebulizer as before. this drug contains aspartame, something my pediatrician did not tell me. aspartame gives me headaches and makes me "foggy". i stopped drinking diet coke years ago because of the effects. M 4 5 days
2/24/2006
 1  for asthmas related to allergies we gave this drug to my seven year old son and, like all the other, found it to be a miracle cure for asthma and allegies. However, like many of the others that wrote, he became angry, irrational and mean -- a complete and scary personality change. He also had nose bleeds and leg aches, which I had dismissed entirely and now believe to be related to the drug. Thank God I found this site and others like it to help me see the real problem. After just a few days off the drug, he is back to his old, sweet self. This drug should be exposed and banned-- it absolutely should not be administered to children without proper explanation of possible side effects. The drug company web-site does not mention anything. M 7 21 days
2/18/2006
 1  sports induced asthma severe headached, mood swings, just not her self, more recently what we know now a petit mal seizure and on sunday a ride to the hospital in an ambulance after we found her in convulsions and foaming at the mouth!!!!!! my 10 year old daughter has not been the same since she started taking singulair just 2 months ago, if it would not have been for the sites we may have never linked it. we have taken her off the medicine of course and are waiting for mri, eeg, ekg testing. please pray for us.!!!! F 10 2 months
2/17/2006
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 2  allergies; rhinitis 4 year old son had a dramatic personality change soon after taking 5mg chewable tablet each day. Became physically aggressive and irritable. He said he felt like "a bad guy" while on the medication. Granted his allergies improved I took him off the medication because he was an angry little boy and previously he had been very happy go lucky. (His original personality was restored within 3 days of discontinuation of Singulair.) M 4 2 weeks
1/27/2006
 1  Asthma Son is depressed, suicidal, angry, has body tics, irritable, hypersensitive, has nightmares, he is bouncing off the wall Please help guide me. My Son is was on Adviar 250/50, but I am finding the same problems posted for both Singulair and Advair. We thought he was losing his mind until I found these postings.Who can help? He can't function at school, he is disruptive. he is so moody. Has the drug caused permanent mental damage? He used to be such a good boy and so kind. At 11 he now talks of suicide. Doctors that I talked to after reading other postings don't seem to believe the link. The drug company has never studied a 250/50 dosage effect on children. We stopped the drug last night and he is on 24 hour watch. Will I get my Son Back, we are devastated. If he would have been successful in suicide the other day, I would have never put the link to this drug. How many others are out there not knowing that the drug causing these problems. I beg anyone to help guide us for help? M 11 4 months
1/26/2006
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 1  Astma My 5 year old went from a normal child to Mr. Hyde. Destroyed his classroom in violant episode. Attacked his teachers The drug did wonders for his asthma however over the course of 3 months he changed from normal to a monster. He was always a bit agressive but this took that agression and amplified it. Based on what I have read so far I am taking him off the drug and am hoping I get my son back. M 5 90 days
1/26/2006
 2  asthmatic coughing at night Hyperactivity, night-time waking, excitability After 24 hours my son was showing clear signs of excitability which became progressively worse until on the 3rd night he was unable to sleep for most of the night and was so overexcitable we couldn't let him attend preschool M 3 3 days
1/20/2006
 1  Reactive Airway Disease My son was having daytime hallucinations (hearing and visualizing monsters trying to get him), night terrors, irritability. Had same thing experienced by friends' children who said their kids were also doing the same things. BAD DRUG FOR CHILDREN!!!!! Stopped having these side effect after I discontinued singulair. I don't think they researched this drug correctly M 3 3 months
1/8/2006

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