Singuliar symptoms and conditions

My three year old daughter was on in as a baby and it was great for her asthma. I stopped it for a year and now she is 3 and has started it again about two weeks. She sleeps at least 12hrs a night and has a nap. This is someone who slept maybe 8hrs a night and never a nap. Actual the sleep is so much its kinda worrying me. I have a hard time even waking her up. What should I do?

OK MY DOC JUST GAVE MY 14 MONTH OLD SINGULAIR THE YOUNGEST IVE SEEN IN HERE WAS 2O MONTHS. WHAT WAS SOME OF THE FIRST SIDE EFFECT THAT YOU ALL SOW THAT I NEED TO KEEP AN EYE ON

My 2.5 year old son has been taking oral Singulair granules for 5 days. He has developed a vasculitic rash on his arms and legs. Is this a known side effect of the medication?

I am astounded that this study of old data is being used to reinforce the message that Singulair is not connected to depression / suicide. The study is disputed by the fact that those suffering from the life threatening and incurable "Mental Illness Side Effect" see a complete return to normalcy within 7-10 days off the drug.

My own personal story, like many others, was a complete and total nightmare for my family over many years. In short, I went from a 10 year successful career as an art director with tremendous responsibility at a top international arts museum, to 2 years of full-time disability unable to leave my home with crippling anxiety/panic/depression. I was very lucky to have a loving wife and supportive doctors intervene before I took my own life.

The last few years is a blur of toxiPharmacological hell. A frustrating long string of tests, medications and treatments were attempted without any success... much to the consternation of my care givers. Not one of the dozens of doctors that I saw raised any question about the 10mg of Singuliar they knew I was taking daily.

Financial ruin, forced me off medical insurance. So I stopped all the psychoactive medications and came full circle back to suicidal ideation with more determination. A few months later, in March of 08' I could no longer pay out of pocket for may asthma medication Singulair and was surprised to find the mental illness begin to lift. A few days later the stories broke on the wire that this drug was perhaps connected with the unfortunate suicide of Cody and other teens. A week or so later, I felt myself again after many lost years.

Merck may have quietly updated the patient info several times over that period, but they made no attempt (still haven't) to reach out to prescribing doctors and pharmacists to let them know about potential issues. It seems that Montelukast interacts differently in individuals, and while it may be beneficial for many folks it is criminally dangerous not to increase the awareness of the side effects.

My General Practitioner pointed out that the original Montelukast study was quite large as these things go, but considering that it is prescribed to millions of people it is truly an irresponsibly small fraction sampled over a short period of time. Adding insult is the fact that these studies are conducted by the very company that seeks to benefit from positive findings.

The ALA has done a terrible disservice to the people the ought to represent. Downplaying the verifiable risks of suicide by recycling old data is completely and totally heartbreaking. I am ashamed to say that since I've been off the drug, I have been so preoccupied with trying to rebuild my life that I haven't been as forthcoming an advocate for the issues associated with Singlair. Misbelieving that others would take up the charge of spreading awareness and information so that new patients and their families would at least know the risks and be ever watchful.

Since that no longer seems the case, I offer myself and my well documented medical experiences with this drug, to anyone trying to get the message out. The media will pounce on the ALA study, giving many families a false sense of security.

Be well.

My nephew is 7 and has been on Singulair for probably 4 years. His symptoms developed over time but recently have exploded. He has epilepsy so most of the things that he has experienced has been blamed on that. However, today his doctor took him off singulair and said he believes his symptoms are caused from the drug. He started having head drop seizures, fell out of his desk and cut his face one day. He has also been depressed, had severe anxiety attacks for the past 8 months. Several months ago, he started having such severe nightmares that it is almost impossible to get him to go to bed and go to sleep. Recently he began "seeing dead people" and "monsters" that we trying to kill him even when he was awake. He has also cried many nights with leg cramps and severe stomach pain. I will update this page in two - three weeks to let you know if these problems go away now that we have stopped the singulair.

I failed to mention this in my previous postings.My 7yr.old ,who had been on singuliar for along time,had been having chronic stomach pains.Since being off,I noticed a drastic change in her stools.They went from grayish in color, back to the normal brown.Previously ,to going off Singuliar,blood work had been done to find the cause of the pain.Her blood counts were fine,but her cholesterol was high(266).High for a 7 yr.old who eats a balanced diet.I'm meeting with her doctor tomorrow to discuss many Singulair issues with him.I will have her cholesterol checked in the near future.Waiting for Singuliar to be out of her system awhile before having test done.

I have two sons on Singulair, my three old was suspended today from pre-school for bad behavior. Screaming, biting, scratching, and hitting have been going on for the last few months. But worse the past two weeks. He has always been active and played like a boy, but he has been getting violent. We have tried positive reinforcement, praising good behavior both verbally and with rewards, I have tried time-out, being grounded, not being able to participate in activities, no t.v. and old fashioned butt spanking. All of this with no positive results. I am not looking for an excuse for my child's behavior, but could Singulair really be the cause of his aggression?

Hi, njcukett posted 2 days ago asking if anyone is still having abdominal pain after being off singuliar awhile.My 7 yr.old (on singuliar at least 3 yrs.) is still having pain.She also had bladder issues for the past 2 yrs.(Frequent dripping and urgency to void).This went unexplained by doctors.Over the past 6 weeks since she stopped taking singuliar,I have noticed a complete change in her stools.While on singuliar they had become grayish in color.She would have 2-3 of these movements a day.The color of her stools are now normal,but the lower abdominal pain is still present.So I am wondering if the pain is coming from the bladder, not the stomach.I am going in(without my daughter) to discuss this with her pediatrician next week.Singuliar also made her very anxious,do not want to add to that,by discussing this in front of her.For the people having abdominal pain,did the stools change while on singuliar compared to when off?Just curious.

I spent the weekend reading about the development of Singulair. The early studies recognized that the first phase of the acute asthma response bronco-constriction was probably not caused by leukotrienes. They identified histamines and prostaglandins as the probable sources. I don't think that changed because the Singulair literature states that it should not be considered as a treatment for that. Leukotrienes were a source of inflammation caused by eosinophils and mast cells present in greater numbers (than normal) in airway tissue. So, it was beneficial to find a way to decrease that.

The cysLT1 receptor was identified as source of the signals that tell the cells to produce leukotriene. The receptor, a gene, consist of 337 (they think) amino acids. They modified a compound that would bind to that receptor thus blocking the cells ability to produce leukotrienes. This compound is very specific. It was formulated to bind to the "model" receptor. This compound will not even bind to cysLT receptor sub-types. (That is the good thing.) There is an enormous amount of research that discusses the genetic variability of the chemical reactions that occur in the leukotriene (calling it this for simplicity) pathway. We are also seeing that a number of researchers would like to use gene profiles to predict whether patients will respond favorably to different asthma/allergy drugs. ALL PATIENTS HAVE A RIGHT TO KNOW IF IT IS INHERENT THAT SOME PEOPLE WILL NOT RESPOND TO SINGULAIR OR RESPOND ADVERSELY.

There are many studies from the 1998 era that conclude that montelukast is not effective for everyone. Those researchers stated that it can be predicted that those people who are going to respond favorably will do that within the first 14 days or so. That conclusion would be consistent with a genetic component for efficacy and safety of Singulair. Those doctors concluded that those who did not respond within that time frame should not take Singulair for fear of harming them. That makes good sense.

The Italian researchers wanted to know if there was more going on than blocking leukotrienes in the action of montelukast. They set up a "test tube" study regarding montelukast, the cysLT1 receptor, and some t-cells that they selected. Why? Researchers always have something on their minds. They observed the death of these particular t-cells.

Montelukast is a quinoline. We basically know of quinilines and quinolones as compounds that were invented as broad spectrum antibiotics. They work because they interference with bacterial DNA so they cannot replicate themselves. Montelukast is a quinoline modified to bind with the cysLT1 receptor (a gene) and prevent that gene from activating. That's consistent with what a quinoline/quinolone does.

So what does montelukast do in blood plasma if it does not bind to the receptor because of genetic mis-match? (If montelukast does bind, then a chemical reaction has occurred and the liver will break down the by-products. Montelukast metabolized in 10-12 hours.) What happens if it doesn't bind? How long before it breaks down? Does it produce toxic by-products?

I want to know what happens to lymphocytes such as t-cells just because montelukast is a quinoline. Maybe nothing but what's up with the Italians researchers? I want to know if montelukast has the capability to interfere with lymphocytes who can clone themselves. That could be a good thing under circumstances when these lymphocytes are causing inflammation. But it could be a bad thing in the case of normal individuals with no problems.

I want to know if the bad side effects are due to the fact that the body has to break down and metabolize a quinoline that did not bind to the receptor for which it was created. The side effects of Singulair are strangely similar to what is observed in the quinolones such as levaquin. I have not as yet been able to compare montelukast as a quinoline to levaquin as a quinolone. I am hoping to find something on these categories. There may be no reason to worry that they cause similar damage. But frankly, I think that there is. There is some terrible chit happening to some people. The scariest is the neurological damage.

All of these questions would be in the everybody pharma knows to ask category. I don't know where the answers are. I haven't found them as of yet. Maybe there are no answers. We have to remember that Singulair and Vioxx were released in the same year. They have continued to be drugs under the current executive management of Merck. If the Vioxx marketing promoters had their ghost writers, why not the Singulair marketing promoters. The genetic component appears to be widely accepted but we haven't heard one thing about even that.

I think that it is sad that maybe the marketing of Singulair as one stop shopping for asthma/allergies may have destroyed the original concept. I really think from reading the original work that they knew that they couldn't engineer a drug for one size fits all. Everybody gets harmed when information is withheld.

Shame on the allergist who yelled at the mother who wanted to discuss issues. Does he know exactly who is allergic to Singulair and who isn't? Get him a dunce hat. Just because Singulair is marketed for allergies does not mean that you cannot be allergic to it. See the power of Madison Avenue? The ad agencies focus group these drugs to death. The ad agencies cleverly craft the product information. A good piece of legislation would be to prohibit consumer drugs ads.

(A divorced father)
My son has been on Singulair now 5 years and I am in the middle of fighting to get him off. My son is now 7 years old and has been diagnosed with allergies (no test have been done which I find very odd), which leads to a case of mild asthma. This past weekend his mother forgot his Singular on Friday so I could not give him any till the next day, where we met at his soccer game. Saturday night I gave him his usual pill and thankfully due to his exhaustion from playing out side all day he went to sleep in 10 min. vs 3 hrs later which is the norm since Singulair seems to jack him up.
He also has red puffiness under his eyes - most likely allergies.
Seems depressed - just driving down the road and I look at him in the rear view mirror and he just sits and stares into space. When I ask what's wrong he either says nothing or I am tired.
He will try to tell a story or think for himself and just stops mid sentence and says " never mind I am just confused"
He will be having fun one moment and just starts crying or gets depressed.
He was throwing a ball in the house (yes I know) and accidentally knocked a glass over breaking it - he went running to his room, crawled under his bed and sobbed profusely for over 30 min.
He has a hard time doing / focusing on homework - becomes bored very easily.
Does not want to go outside. I will take him to allot of cultural events/ hands on or participation events - he will not try anything. He is unsure and will not come out of his box so to speak.
I spoke with his doctor who was reluctant to take him off, but then agreed that if it was OK with the ex, to take him off for a week to see what happens.
The fun part: My ex is convinced that since he has been on Singulair for 5 years he is fine and does not need to come off it.

1.) Son is diagnosed with mild asthma or allergy induced asthma.
He has never had an allergy test done and has not had a lung function test in over a year.

2.) It is documented that our son has four outbreaks a year. (sounds like the changing of the seasons) but is given Singulair all year round and the dosage has also been increased.

3.) Since the court order, ordered my ex to enroll our son in sports (she would not let him play anything) he does not wheeze or cough uncontrollably.

4.) Since I had to battle to get our son on my insurance I have cut her control issues off a little, but she is refusing to take him off Singular just for a week to see how he reacts. Although I do agree that he should have some form of allergies medicine.

5.) When I found out about the side effects of Singulair, I also found that his doctor was getting ready to add two other allergy medicines to his portfolio - totaling 3 different meds.

I see our sons behavior getting worse and I watch him turn into something he is not and with a controlling individual not believing anything about the side effects it looks like I will have to rely on the medical system to prove my point. I do believe he needs to be accurately tested for allergies and given a regularly lung function test but most of all since he is now on my insurance, a second opinion and a 3rd to narrow down what the situation is and an alternative medical procedure that is fit for the symptoms.

I have communicated directly with Leslie Hendeles, a leading professor of pharmacology and pediatrics at the University of Florida who's direct quote to me was:
"In response to your last comment, I thing Singulair has modest efficacy, and if we take all of our patients off this drug, THEY WON'T SUFFER. This is NOT an important drug for pediatric asthma, as are inhaled corticosteroids."

Ironically, this is the same individual who was quoted in an ABC news article as saying:
"We have hundreds of children on Singulair and have never heard parents make complaints about psychiatric side effects. Moreover, there is no mechanism for this reaction … We will be telling our patients not to worry about this."

WAKE UP EVERYONE...THIS IS AN ADMITTEDLY OVERPRESECRIBED DRUG THAT HAS WORKED WELL FOR MANY, BUT HAS ALSO RUINED MANY LIVES.

The manner in which this drug is casually overprescribed by so many doctors is freakish. I firmly believe that this drug has caused countless misdiagnoses such as ADHD, Bipolar disorder and others. IT FUELS A GOOD PART OF THE ECONOMY TO PUT SO MANY PEOPLE ON THESE DRUGS. I BELIEVE THE PHARM INDUSTRY IS VERY CALCULATED IN THIS MANNER.

Question what your doctors tell you.
See my other posts under matthewct1. I dealt with a situation where my 5 yr. old son was on the road to being diagnosed with ADHD which couldn't have been further from the truth. Singulair changed him. Since he's been off Singulair everyone (teachers, pediatrician, family, etc.) unanimously agree that he does not show the ADHD symptoms like he did on Singulair.

I've never written on a blog in my life, and now that I've just read this, my stomach is doing flip flops and my blood is runnung cold. I have an 11 year old son and a 9 year old daughter. They have both been on singulair for quite a few years. My son has been on ADHD meds now since about a year and a half after starting Singulair because we tried to avoid them. Every few weeks he tells me he has this empty feeling inside him that makes him really sad and he doesn't know what it is. It just feels empty. I'll usually read with him or play a game or walk our dog with him to help him feel better.
As for my daughter, she exhibits all of the symptoms I have read about. She talks about life being terrible( trust me, she has it pretty good), she has been diagnosed with an anxiety disorder, OCD and Tourette Syndrome. Every psychiatric medication we have tried has made her worse. She was always a confident, outgoing little girl, and then she just changed. She's had stomach aches, which the docs always thought were in her head. She gets headaches. She is extremely sensitive, won't let me even brush her hair or touch her. She has extreme mood swings and gets upset over the most miniscule things, then writes about them, even saying she realizes her anger was too much for what the situation was! I will stop Singulair immediately and see what happens. What a miracle it would be if all of their symptoms disappeared.

My 4 year old daughter has been on Singulair daily for approximately 2 months. We started noticing some minor changes in her behavior early on (shyness, separation anxiety, anger, moodiness) but chalked it up to starting a new pre-school and arguing with her older sister. Then about two weeks ago, she started having an obsessive-compulsive type behavior about wiping herself. My first inclination was that she had some type of infection (yeast, UTI, bladder, etc) but all of the tests came back negative. My doctor told us to stop the Singulair, so we have been off for about a week now, but the OCD symptoms haven't lessened. I would say that some of the other behaviors are improving somewhat, but I am not seeing a "whole new kid" effect after being off for one week. Has anyone had a similar experience with OCD type behaviors? I am beside myself with concern! Thanks for any help.

I noticed a lot of postings about weight gain on Singulair, which is nowhere listed by Merck as a possible side effect. My 15 y.o. daughter experienced sudden weight gain at the age of 9 when she was actually underweight (BMI went from 17 to 21). To make a long story short, after being off Singulair for over a year, she is now over-weight, and diet/exercise have never made a big difference (gymnastics, swim team, figure skating, trampoline, etc.) Extensive labwork is always normal & there is no family history of obesity. It's a shame the quality of life of a child is RUINED by a drug that is deemed to have "no side effects", and the many drs. & specialists out there take it very lightly. We continually worry about our daughter's self-esteem, risk of diabetes, and other complications from weight gain which is not hereditary and goes on unexplained by the drug co. Reversing this weight gain has been nearly impossible. Everytime I hear a news report about our children being overweight and obese, it makes me angry because I think about the many kids that are taking this highly prescribed drug (for even the mildest allergy or asthma) and who knows how many parents don't make the connection!

My daughter had an appointment with a gastrointestinal doctor this morning because of her stomach problems. (She has been off of Singulair 10 days now and ALL symptoms- leg pains, abdominal pain, dizziness, sensitivity to light, severe mood swings, depression, anxiety, severe tantrums have all vanished) We kept the appointment with GI because our physician advised us to. He found it hard to believe that Singulair could be the cause of all of her symptoms. Well the GI also found it hard to believe that Singulair was the cause but said, "The proof is in the pudding." I have filed a complaint with the FDA on medwatch.com. It was very easy. I have also asked the doctor to file one as well. I also gave the doctor a printout of the studies done. Hopefully with more and more people filing complaints the FDA will act quickly. There is so much indisputable evidence regarding adverse reactions. It is unbelievable how many stories sound just alike. So many children have lost years of their life due to this drug. Parents have spent so much time and money trying to figure out what is "wrong" with their child. It is a shame so many have been incorrectly labeled all because of a drug they were taking!!

Update.. well today is the 10th day off of Singulair for my 6yr old son. He is doing wonderful. One of the issues he has been dealing with over last year was constant sinus infections. Just curious if anyone else out there experienced thick mucus/sinus infections. His got to the point that his adenoids became enlarged from constant infections but even after surgery in Feb his sinus did not seem to drain completely. Well yesterday he finally started having discharge of what seems to be a lining in his sinus(what they saw on cat scan before surgery). He has no cold symptons and I have been giving him mucinex & saline washes to help thin it out but I have been doing this along.. I have been waiting for this to happen for months now! I don't feel its coincidence that its after we stopped the Singulair his sinuses are finally draining (without antibiotics)

I have read what everyone has said about the side of effects of Singulair. I really thought it was safe as for I researched the side effects and the clinical pharmacology. I also really trust our pulmonologist. My daughter started taking singulair at the age of 3 due to asthma induced pneumonia. She will soon be 4. She also has had terrible nightmares, which I dismissed as night terrors. She also complains at times it hurts to walk and her legs are tired. I thought she was over reacting and just wanted me to carry her....maybe not! I have decided to take her off the medicine today. I don't want to take the chance of her having any type of emotional side effects. It is not worth it for "mild" asthma which hasn't been confirmed, just assumed due to her age.

Here is some perspective for you all. I take Singulair and do well on it and in ACTUAL studies it has one of the safest safety records. Understand that post marketing reporting does not mean there is a correlation between the event and the product. Throughout the life of a drug the companies must disclose any report of side effects reported to them REGARDLESS of causality. A popular antihistamine that is OVER THE COUNTER also has suicidal thinking/behavior listed in its post marketing section. However, just because patients who had reported having these thoughts while taking the product doesn't mean it was a result of the product! Maybe they had a depressive personality and were also on multiple other medicines to treat that. You must look at the "Adverse Reactions, Warnings and Precautions" sections of package inserts to see the side effects that were actually seen in studies. You can die from ulcers derived from over use of aspirin or ibuprofen. Decongestants can throw off your blood pressure and these events are documented in actual studies! Listen to your bodies when taking any med. If you feel differently report it to your doctor.

These are all drugs people, there are potential side effects. There are also side effects to those "natural" over the counter remedies that are not nearly as regulated by the FDA or studies by the drug companies.

To anyone out there who has experienced side effects to singulair timed to when you started it, talk to your doctor, stop taking it and see if it goes away. Same advice for any product prescription or over the counter medicine. Side effects can be a combination of many factors (what other meds are you taking?) But understand for many people this product is the safest and most effective treatment for them. The FDA and Merck are reviewing all information to see if there is any correlation to the reporting. But singulair been around for about 10 years and prescibed to billions of people and is known to be one of the safer medicines out there overall.

In between the legitimate posts on this site I get the sense there is a lot of ambulance chasing going on. People looking to cash in on this big drug companies. We want drugs, we want them cheap and with no side effects which is not a reality. Keep stepping up the regulation and make the companies hire more lawers to protect themselves and jump through even more hoops and see what happens to the price and access to new meds. Even better, see how regulation has impacted the development of new medicines around the world (here's a tip, it will dramatically decrease). Drug companies certainly aren't perfect but which industry is?

Please, when taking any medicine over the counter, prescription or herbal supplement listen to your bodies to see if the potential benefits of the product outway the risks or side effects. Report any changes to your doctor.

I took Claritin for many years it was my wonder drug. Early on I had some side effects such as heart palpations, very dry mouth, leg jumps and vivid dreams. I talked to my Dr. About the heart palpations but he never mentioned it could have been being caused by the Claritin. Anyway I took it when needed until my Dr. told me to take it every day and after about a year of that I started to get tremors, heart races and the shakes every time I took a dose. I quit Claritin all together and went 2 years taking nothing and now I am on Singular but it doesn't help me nearly as much as the Claritin did. I would like to try more medications but its hard for me because I am scared now of possible side effects.

I am a 44 yr. old female. I have been taking Advair for about a month. I have to say that it is wonderful that I can finally breathe but the leg cramps and constant heartburn that I have never experienced before is unreal. The weight gain is becoming an embarrassment as everyone I come in contact with comments or asks if I am pregnant. After experiencing breast secreations, I checked and that was a negitive. My 8 year old loves it that most of the time I am too hoarse to give orders. That is when I can finally pull myself out of a much needed doze or nap. The sweet me has disappeared and the wicked witch has taken over as I am always moody, depressed and tired. I too have experienced flu like symptoms, ringing in my ears and insomnia. Advair along with the Singuliar has made life on the breathing end very good, but on the health end the pits.

Was on Prednisone 2 years ago for respiratory problems 30mg. Gained 25 pounds, fat face, felt tired, etc.

However 2 years later, after weaning off Prednisone my muscles ache, joints are most always stiff, esp. hands plus my feet feel numb and my short term memory has not returned to normal----does any one else out there have similar problems. What can be done?

wow im absoloutely terrified to go on singuliar my doctor prescribed it to me for a year :(. I really aint sure if I wanna go on this pill all these side effects just make me worry more.

my grandchildren all have allergies and are taking singuliar, and have been for sometime. Doctor recommended it for the winter season. Although, my oldest grandson has been on it the most and he does have twitching and a tick problem. Also, I have noticed that his character has changed, some. He can be listless at times and also does not like to lose at anything and gets upset when someone criticizes him...The doctor said that children sometimes go through tick phases. I just have to wonder what the doctors haven't realzed, yet, about singuliar.

My son quit singulair "cold turkey" after 6 years of use,
but his athsma was mild. I would agree that those with more severe athsma should be careful when stopping singulair,
have a good emergency back up plan and talk to your doctor. My son's athsma actually improved off singulair though. I think everyone is different, so definitely be careful. I really believe that those expiriencing stuttering, ticks adhd and bad dreams and behavioral problems may already be predisposed to some pschyciatric disorder, the singuliar seems to bring this out and amplify the problem. My son will be evaluated for bi-polar disiorder, but already has been diagnosed adhd and tourettes. I would recommend that anyone with these problems with singulair discontinue and consult a good psychciatrist or psychologist about these behaviors, it probably is not all the cause of this med, just made worse by it.

I am a 44 year old male with relatively good health with the eception of severe allergies since moving to North Carolina ten years ago. I have been on all the typical drugs over the years and started the shots two years ago and have gotten significant relief. Two months ago, my Allergist started me on Singulair for the Spring season. My oldest son seem to get relief from the drug, so I decieded to try it.

At first, it was great to breath with such ease and not have to carry around my inhaler all the time. But over time, a crazy and bizarre side effect began to emerge. I have never dreamed much or had trouble sleeping or walked or talked in my sleep. Since being on Singuliar, I have done all of these things. The dreams are so vivid and real that many times when I wake up, I can't tell reality from the dreams. They seem to last all night long and go on and on and on.

The last two nights have proven to be the last straw. I have dreamed about murder, my dog wearing a diaper, and many other bizarre things all of which seemed normal to me while in the dream state. No more Singulair for me. I'll take my chances with sudafed and albuterol.