Allergy season symptoms and conditions

My son began taking singulair when he was 6. About that time we were hading into the school years. He was labeled as a "special" child from that time on. Impulsive, aggressive, angry, anti-social, etc. He had a hard time focusing at school and every day was a battle. About 5th grade, after 3 schools, he was diagnosed with ADHD. I never, ever thought that it could be this medication. He was on it for about 4 years off and on during allergy season. I transferred him to a private school for children with behavioral issues and as time went on through therapy and special schooling it seemed to get better. I look back now and see that our "good" times were when he finally went off it for good. The beginning of his Freshman year was great! He had a 3.58 GPA, making friends and finally happy. The unfortunate thing is now that puberty has really kicked in, we are back to the old behaviors but much worse. Impulsive, angry, anxious, afraid of the dark, afraid of death. Violent thoughts, impulsive and very unhappy. I can see now that my son never had ADHD. He was misdiagnosed because thier were no warnings at that time. I don't think it ever "goes away". Even after years of being off of it. Something with the puberty hormones is re-triggering this behavior. IT IS LONG TERM!!!!! Even after discontinued use. Please, please keep an eye on your children. I AM SO ANGRY FOR HIM!! Also, for me. Special school $400 month, psychologist appointments, $300 month, my poor Son in a dark place I can't get him out, PRICELESS. . .I want my Son just to be happy. Thank you all for sharing your stories, it gives me strength that I need for him.

Update. The count down is on. Next week on Tues my 6yr old son will be having his tonsils removed. Only 5 months after the adenoids were removed. I am hoping once this is over the improvements I have seen will just get better! His sinus drained in April, 9 days after coming off Singulair after battling sinus infections for entire year or more actually. When his sinus drained the infection went right into the tonsils and he has had tonsillitis ever since. One thing I wanted to share is that around the same time he came off singulair we started omega 3 supplement. Both my son and I stopped Singulair the same day. We both started the Omega 3. Last week I had to stop his dose because of the upcoming surgery because it can thin the blood. I noticed this last week his nasal allergies kicked in. He did pretty good through this allergy season and wasn't on any meds a lot of the days. I hardly had to take allergy meds this time around also. Im allergic to trees/grass and this is usually my bad time. I really feel the omega 3 has helped a lot!!! I am also waiting to get the results of his blood tests to see if his cholesterol has gone down. Just wanted to share!

I went to see my PCP in March 25th 2008 because my allergy. My pcp told me she'll give one injection since it's allergy season and it would make me fell better. She didn't tell me what kind of injection it was and I trust her.

The next day I was having panic attacks while I was outside on the street.
I couldn't breath because my heart was beating so fast, and I felt "pacey" all day. I just went home hoping the symptoms go away but it only got worse. I couldn't even walk because I was out of balance, my vision got blur and I had massive headache. I assume it was happening because the injection so I called my PCP, but she told me she didn't do anything different. My PCP had a day off so I went to the ER that afternoon. I had cat scan done in case I had stroke but my cat scan was clear. The ER dr think it's side effect from the shot.
I called my pcp 2 days later after my visitation to the ER but she never returned my call. Somehow, I couldn't trust my pcp I didn't go back to her.
I was hoping the injection fades away and try to manage my body. I start notice I had anxiety and couldn't sleep at night. I had pretty regular period but I had very irregular period following month and that drove me crazy because I had 2 full periods within a month and I had blood spots. I barely had period following month. I notice that I gain so much weight. I always watch what I eat so I never get out of control with my weight but I couldn't fit into my jeans I used wear. I also notice that I get back pain the side I had shot if I seat for long hours which I never had before. Now my legs are swelling ,numb and have tingling sensation. I was really concern so I call my pcp today to find out what kind of steroid she injected me. The medical assistant told me that doctor can't not give the name and he was giving me ridiculous excuses to not to give me the name of the injection . I was so upset and didn't make sense to me. I asked for the dr. and asked my pcp the name of the shot. It was "Kenalog". I googled the name and I found this site. I am really scare and I am upset at my pcp that she never mention what the injection was and never discuss the side effects with me. If I knew about the side effects back then I would never let her give me the shot.
I never signed anything with my pcp. My pcp promise to call me back today. I even left her a message again to call me but haven't heard from her yet.
I believe FDA is responsible for this steroid but doctors are holding great responsible also!

How long dose it takes to get back to normal? I would greatly appreciate for any information!
Dose anyone knows powerful lawyer?

I have a three year old son who has severe allergies. He's been taking singulair for 2 years on & off just in the allergy season. He started taking, singulair again in the beginning of April. One morning he woke up and both eyes were really swollen and red, I called his doctor's office and told them i thought he had pink eye, after 2 different drops and no change I brought him into the doctor's to see if it could be his allergies, and they agreed and started him on Zyrtec. I still was not impressed with the results so i brought him back yet again to see if we could see a specialist. Instead they put him on nasonex to try.
In the beginning of March I started to see a change in my usual happy fun loving son. He was scared to sleep in his bed, waking up in the middle of the night from bad dreams, uncontrollable screaming fits that would last up to an hour, saying he wants a Boo Boo. At first we thought it could be jealously over his new brother, or maybe something at his school.
Then i found this website and everything clicked, how scary it must be for a child to have these horrible thoughts and not be able to understand or stop them. What are the people at merck thinking??
Can any one tell me when the symptoms stop. He's been off for a week and we see some improvements. But he still has these fits with almost an OCD tendency to them (mainly when he's overtired), stomach pains, lack of appetite.

My four old son has been on singulair for about two weeks. The change from wheezing/coughing attacks at night and terrible allergies during the day has been amazing. They are almost non-existent to this point a great plus. However, a i stress however his behavior and speech has been VERY INAPPROPRIATE and quite frankly it concerns me. He now states "im a bad boy" and "i dont listen" and his mornings are very testy to say the least. Granted these sound like normal 4 yr. old sayings that he would pick up from other children on the playground but how do you explain them happening almost simultaneously with his taking singulair. I find it very hard to believe that it is a coincidence and that these are normal things for a 4 yr old to say/do when all other things have remained the same. My advice is to diligently watch your child for these warning signs and find other remedies if you have reservations. Im not promoting natural cures but i am leaning toward a diet change for the whole family and consulting my doctor for food allergen testing. I hope this helps. Be Well.

May 2006 I stopped taking Yasmin after being on it for a few years. I was having bad sinus congestion, sinus pressure, headaches and post nasal drip but never thought it was because of Yasmin. I went to a ENT doctor and the tissue in my sinsus cavities was so inflamed he recommended surgery. I also had a deviated septum and bone spur which were corrected. After the surgery (August 2006) I felt great. I exercise A LOT and it was now so much easier because I could breathe without all the fluid buildup. I kept thinking what a miracle the surgery was. March 2007 I started taking Ortho-tricyclen and quickly gained 10lbs in 2 months. I also had mood swings mostly feeling down. But I was still able to run and exercise more than I had in many years. March 2008 I went in for my annual exam and after mentioning my side effects from Ortho-tricyclen my doctor recommended going back on Yasmin since it had worked before. Two days after starting Yasmin my sinus problems and headaches returned. I was so low on energy and my chest felt tight. The only good thing is that I lost my appetite and in one month I lost 7 of the 10 lbs I gained on Ortho. I stopped taking Yasmin this past weekend in the middle of a pack. I am feeling better and have not had a headache this week. I was also able to run yesterday which felt so good. I hadn’t exercised in a month because of my lack of energy and difficulty breathing. Had I not been on it before I would have thought this was just a bad allergy season. I am convinced Yasmin was the cause of all my sinus problems and headaches.

Oh my gosh, I am just shocked after reading these posts. I am taking my son off of Singulair immediatedly!!!! I knew I wasn't crazy!! My son was on Singulair for over 2 years and it was awful. He was so hyper and uncontrollable. He couldn't control his temper. He had headaches everyday. He was put on it due to severe allergies and asthma. He is on other medications as well as allergy shots. I kept telling the doctor that I think the singulair was causing his bad behavior problems. He was just so hard to handle. He couldn't sit still for anything. The teacher couldn't get him to sit still in his chair. It just wasn't normal behavior for him. The teacher even thought he had ADD!! I didn't accept that however. The doctor just thought I was crazy and told me that Singulair wouldn't cause those symptoms. She said it actually would work opposit that and cause him to be sleepy. Well I took him off of it anyways and he did get pretty sick. His asthma acted up ect. But he eventually felt better and his behavior improved drastically. He wasn't so hyper and he could actually sleep at night and wasn't so scared at night. Just within the last week he has been pretty sick due to allergy season, his asthma has been bad and the doctor told me to put him back on the Singulair. So I did he has been on it for four days now and he is HORRIBLE.. It was an instant change. My husband and I can't control him and he can't sleep at night and has headaches every day. I am so glad I found this sight. I am taking him off immediately.
Thank you all so much for your comments. This medicine should be outlawed. I don't care what the doctors say. By the way my son is 9 years old. I certainly had no idea that it has caused suicide. I am so sorry to you all that have experienced such horrible things. Come to think of it my son used to say he hated himself all of the time when he was on this medicine.
God Bless You All

I am starting a new post in the hopes that others will see what I am trying to say about the delayed reaction in those that took Singulair for allergies.

If it is consistent that Singulair does not stop allergy symptoms immediately, then the pathways that eventually stop allergy symptoms involve a change in the mast cell function, development and migration (or some combination).

I asked this question for a reason. Are allergy symptoms stopped immediatedly. My question below:

I have a question that will help me continuing looking for information. I can understand that in the case of asthma that Singulair would provide immediate relief. If it is used for seasonal allergies or other allergies without asthma, does it work right away or does it take a period of days or weeks to be effective? If it takes time, could you tell me how long it took in your situation?

My thinking was going in the right direction if the answer below is consistent of everyone or most.

about 2 hours ago on Apr 11, 2008 by catherineevans, #7045
My granddaughter was put on Singulair for allergy symptoms without asthma. Itching, red eyes, terrible congestion, etc. dark circles under her eyes all the time. When we first put her on this, we didn't see any consistent results for 2-3 weeks, then it seemed to 'kick in.' I don't know if this helps. By the way, she was 9, now she's almost 12 and was immediately taken off when this story came out 2 weeks ago.

Then after seeing one response, I gave my reason for asking.

I asked this question because I have a theory of how montelukast really works for allergies as compared to how it works for asthma.

Asthma is a hyper-sensitive state that gets going because the mast cell has a receptor (the leukotriene receptor that Singulair blocks) that sends a signal along a pathway that causes lung tissue to have that extreme response - the wheezing, the airway constriction.

On the mast cell is another receptor the histamine receptor that causes the secretions that make our noses runs and and stuff up. This is not the same immune response as the asthma response. When I saw a post that somebody's doctor said that Singulair is an anti-histamine, NO it is NOT.

So if Singulair does not block histamine immediately and your child's allergies did not go away immediately, then maybe Singulair is working through some other means such as changing normal mast cell homeostasis.
I know that this seems like "what does this mean?" I am really writing this hoping to God that there are people reading this site that know what I am talking about.

Thank you so much for responding. Your answer actually told me what I wanted to know and confirmed my hypothesis. More answers will help. I hope others respond.

PLEASE respond about the length of time that allergies disappeared if you took Singulair for allergies.

Update...Today is the 11th day my 7 yr. old son has been Singulair free! He was taking it for "cold induced" asthma. He never had the typical asthma where he needed an inhaler. He got RSV when he was almost 3, then whenever he got a URI it seemed to go straight to his lungs, so the dr. prescribed Singulair and Xopenex (to be used with a nebulizer). I had asked the dr. a few times to take him off Singulair because he seemed to be doing much better and I wanted to see how he would do without it. The dr. would say "oh, let's wait until summer or let's wait until allergy season is over" and kept putting it off. I just had some sort of bad "feeling" about it. Of course, I look back now and know with certainty that his wierd behaviors started around the time he started Singulair. I am relieved now because his erratic behaviors are almost totally gone!!!! When I heard the news I decided to take him off the Singulair immediately. I was nervous because he had a cold and a bad cough, but did it anyway. You know what? He is fine! His cough is almost gone now without the help of Singulair! He is much happier and can actually focus on doing his homework without getting up from his chair until he is done. Before he would get up about 10 times and just couldn't sit still. He has a better attitude about everything now! He is doing great! I hope everyone who was taking this and stopped is doing better! I learned a valuable lesson from all this. I won't put him or my other son on anything until I research it! I will not trust anything anymore, and that in itself is sad, but true. Good luck to all!

We lost our home to a house fire this past August so when my 8 year old daughter experienced severe depression, night terrors, and was constantly acting out we naturally blamed it on the house fire. The odd thing was that she had the "normal" depression immediately after the fire and started to become herself again. Several months past when she started this severe depression and horrible behavior. We brought her to a psychiatrist because this was just not the depression she was experiencing after the fire.The psychiatrist diagnosed her with post traumatic stress disorder and explained that with children it can take months for this to "come out". Well, with allergy season on us in the South, my daughter started her Singulair treatment the exact time of this recent behavior. Needless to say, we are taking her off the Singulair, I will post again to let you know if she makes a turnaround.
---by rlhulsen

After reading the recent news reports and reading other parents opinions on Singulair I thought I should be fair to the company, and to other parents seeking advice on this drug, to write about our POSITIVE experience with Singulair. Our 7 year old son was diagnosed with seasonal Asthma when he was 3. We have him on the Ventilator and Advair. During spring time allergy season he would begin wheezing and coughing on a regular basis. We would then give him his puffers. While it would relieve him of the wheezing he would be quite hyper and out of control. Therefore, our goal was to wean him off the puffers. We added Claritin to his diet each day. When he was 5 he struggled through his spring soccer season. As the months went by he looked tired, very sickly, and worn out. His coach recommended that we investigate Singulair. It really turned his child's life around! We talked to our doctor about it. She wasn't familiar with children using Singulair but she prescribed the 5mg chewable but recommended that he use both puffers before his soccer games. We followed her advice. He took his Singulair before bed and the puffers before the game. Sadly, we noticed that he was completely "out of it" during his games. He had no focus (not shocking for a 6 year old boy), no real interest in the game, and no energy. We just assumed it was because he was tired after a full day of school. One day we forgot his puffers but decided to let him play anyway. He had a great game. During a daytime tournament he was back to having his head in the clouds, so for the second game we decided to "forget" his puffers again. He played a great game. But best of all..no breathing problems. We decided to omit the puffers for the rest of the season and just use Singulair. It worked wonderful for him. None of the side effects that the other parents have described. We use it when spring begins and for the the first part of the fall season. He doesn't use it during the winter months. We are experiencing a real dry March so I started the Singulair on Tuesday. Then all of the negative comments came out. I certainly will not dismiss the concerns of the product. We are watching him closely to make sure there are no negative side effects. So far, so good. And no need for the puffers!

I have been experiencing the same disturbing symptoms that were described in the report...depression, laziness, unmotivated, extreme moodiness, etc. I have been on an antidepressant for the last year and have tried to stop taking it several different times without success because the symptoms return within days.

I tell all of you this so that you know I know what you're going through. But I have to admit, the thought of blaming my doctor never crossed my mind. Let's be honest, here. Is it really their fault? If the drug companies didn't realize it was a side effect, how can you expect your doctor to know it? Personally, I trust my doctor and believe that he has my best interests in mind. If your first instinct is to blame your doctor for not knowing the drug was a problem, then perhaps you should find a new doctor because you obviously don't believe he is trying to help you.

Hi. I just wanted to report the latest about my daughter and Singulair. I posted January 29th. I have taken her off ,it's been 11 days. I have seen a remarkable change in her. Her appetite has returned and I am feeding her anything she wants. I think she has already gained weight. She is not complaining about her stomach aches much at all. She seems to have more energy( due to better nutrition I'm sure) I am quite sure it was this drug. I have yet to see how she will do during allergy season but hope I can control it with other safer meds. This is one of the biggest money makers for the drug company(who makes this?) and they don't seem to care that so many people are suffering. I wasn't even thinking it could be this drug as the doctors said there were not many side effects. Hah that's crazy. Anyway thanks to all on this site. Elizabeth

I am 47-year old, male. I started taking Singulair about 4 months ago to treat my allergy. I had very bad running nose and itchy eyes and was sneezing a lot. None of the antihistamines were effective. Amazingly Singulair has been very helpful. I stopped taking it few days ago thinking my allergy has gone as the season has gone. But everything is back. After reading these much about the side effects of Cingulair, I am scared that it might be dangerous to continue taking it. I have not experienced any bad effects, but don’t know to tolerate the allergy symptoms or keep taking Cingulair. Is there anyone who has had no bad experience with it after taking it for a long time? Please advise. Thanks.

I am 52 yr old female perimenopausal and I have some good things to say about my last experience with prednisone. This past allergy season I was put on 3 courses of the 5 day dose pak to decrease swelling of my bronchials. Now in past years when I have gone on prednisone I have not cared for how it has caused me sleep loss, irritability, and hunger. But something must be going on with me hormonally that caused this years experience which resulted in a sense of calm like I rarely have experienced, no loss of sleep, but the reverse - I slept better. Also reduction in hunger and an ability to and desire to control my calorie intake (I am nearly 100 lbs overweight). If it didn't have such long term side effects I wish I could stay on it for ever. What I found very interesting is last month when I was visiting my 61 year old sister who suffers from rheumatoid arthritis and is currently on a 6 month treatment of prednisone is that she shared similar reaction to being on the drug as I did. I wish I could find the connection of what it was doing either to our immune system or pharmocalogically to our nervous systems that gave us such pleasant experience from using this drug this time.

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 daughter is 5 years old and has been on singulair for 1 week. i have already noticed a dramatic change in her behavior. she has become irritable, mean, nasty, and emotional. she has had me in tears on a daily basis. she has turned into a monster. we will be calling the doctor in the morning!

I have received kenalog injections (only one) per year during allergy season for severe allergic rhinitis. I was recently out of town and was miserable and tha local ER would not give me the injection. The reason was beacause it can cause avascular necrosis especially involving the head of the femur. Which means it can slow down the blood supply to
the top of the femur and cause the bone to die. I had never heard of this before and I will probably still take this injection as planned when I get back to town.

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.

I started taking Lisinopril 5/31/2006. I started coughing in June. At first I did not think anything of it, since every summer at the height of allergy season, I always have a coughing spell for 4-6 weeks. But this time, it did not go away and seemed a lot worse. I did take a cough medicine (codiclear DH syrup). This is the only cough syrup that I have found that has ever helped any cough I have ever had. It did help slightly, but usually only to help me get over my coughing a little easier. When I coughed, I had what you would call coughing spells. When I coughed, it would only last for about 2-3 minutes. I would cough until I could get a little bit of phlem up and then only after that, would it start to subside. I would have these spells about every hour or so. I coughed to the point of throwing up and like others, it got worse at night where I would wake up every 1 - 1 1/2 hours coughing, sometime waking up in the middle of the night and not being able to go back to sleep at all. The one thing that seemed to help a little was water. I always had to keep water with me 24/7. I would drink about 16 oz. every hour. It sound like a lot, but it was necessary just to survive the coughing. This continued for about 4 months when my doctor thought I had Reflux and prescribed a reflux medication. This really did not help at all. She then prescribed another reflux med and said if this did not help, I would have to have a micro-oscopy (sp?), where they put a microscope down your throat. I still at this point thought it was still allergies, so I went to my allergy specialist that said it was not allergies and he thought it was a sinus infection even though I had no symptoms. He prescribed an expensive antibiotic, which did not help, then ordered a CAT scan which showed my sinuses crystal clear. After 6 months of coughing, throwing up and not sleeping, I decided to go online to see if one of my meds was keeping me up at night. To my surprise I came across information that Lisinopril causes persistant dry cough. I immediately went off after consulting my pharmacist, since it was a holiday weekend and on Tuesday called my dr. to let her know what I found out. She prescribed another bp med. It has been 2 weeks since I have been off Lisinopril and I am just now starting to see an improvement. My coughing is about 50% better. About 2 weeks ago I also asked my doctor to prescribe a coughing pill that I had been prescribed before. It is Tessalon, or the generic Bensonatate. For the first time in 6 1/2 months, I finally slept most of the night without coughing and only woke up once or twice to go to the bathroom. I also took my cough syrup to at night. I just saw my doctor today and she also precribed a steroid inhaler to help calm things down. Even though the lisinopril is out of your system after 48 hours, depending on how long you have been coughing, it may take a while for things to calm down because everything is irritated from coughing for so long. I hope this has helped, because I know how hard it is to find information that might help when things seem hopeless. Feel free to e-mail me if you have any questions or need some advice or support.

Since I have begun Sinulair, I have noticed improvement of my chronic nasal allergy symptoms. For the first time in YEARS, the congestion is finally lessening. However, I have noticed that I'm hyper all the time now. Where I have had sleep issues in the past, they have only been excacerbated by this medication. Has anyone else noticed this effect? I have tried to research it further, but I don't have access to a Physician's Desk Reference. The web isn't giving me the entire list of known side effects. I have only seen the vomiting, diarrhea or headache listed, but have yet to see something regarding insomnia and hyperactivity.

Hey guys, i was just recently put on advair to assist with my breathing. I have been weezing since allergy season has started. I have never had to use it in the past. I have only been on it for a few days now. my question is - does this take a while to kick in? Cause I still feel I cant breathe that well. I havent experience any of the side effects mentioned, however, I want my damn breathing to improve. I am perfecly healthy according to my doctor, and i have never had asthma, but sometimes had to take an inhaler when i was younger for my allergies - thats all! Any tips on how long this takes to start working?

Rob

I am a nursing mother with moderate asthma that is pretty well-controlled during non high allergy months. My allergist put me on Singulair before I was a mom. The 10mg dosage was way too much for me, backaches and headaches and restless feeling. I went down to 5mg and it was better. I went off of it when the allergy season was gone. My allergist suggest I try it again. I've taken it once or twice since I've been nursing and I usually take the 5mg dosage. I notice dramatic behavior changes in my baby each time. Crankiness, more angry and high anxiety (much more clingy than usual). He is about 2 years so the allergist said it shouldn't affect him negatively. Needless to say, I am taking myself off of it again and staying off this time. At least until I have weaned my dairy intolerant kiddo.

I'm glad to have found this website!

I have taken Allegra 60mg.2x daily for the last 2 years (regulary during allergy season) and have noticed that I have lost a considerable amount of hair! My hair has thinned so much, I do not want to continue taking this medication. I also have had mulitple earaches and more of the same symptomes ( side effects) other guest noted but no weight loss.

My 3 year old daughter was put on Singulair (4mg) for mild Asthma. She had a very hacky dry constant cough. When allergy season came into play, we also added Claritin to her daily routine. We use the liquid Claritin for Children (24 hour) kind. No side effects from any of the two medicines whatsoever. Most of the posts here are full of side effects and I just wanted to say that we have experienced nothing and my daughter is doing well. She is about to turn 4 and is still on Singulair for children. (Chewable type).