Singulair and tiredness

50 year old male, prescribed Singulair 8 months ago to assist with allergy problems while taken allergy shot treatments. About 2 weeks ago started experiencing numbness/tingling in right foot, then both feet, the spreading up the body to above the waist. The best way to describe the sensation is a combination of the feeling you get when you hit your funny bone and the sensation when you sit or lay in a position that puts one of your limbs to sleep. Had all the blood work tests done at Dr. office to verify no other issues, all blood work is normal, Dr. suggested could be a neuorlogy problem and more tests will be necessary. Receive routine Chiropractic treatments and had him check everything, including new x-rays, nothing there. Read the side effects again for Singulair and realized that this numbness/tingling is just one of the symptoms I have had since starting this drug. The others being unusual weakness, tiredness, which I thought was just part of getting older and severe sinus inflammation, which I had thought was just related to my allergies. Have contacted my allergy doctor that put me on this and he said to stop taking Singulair to see if my side effects go away, since I am near the end of the time that he expected me to take them for anyway.
I will repost after a few weeks or as soon as the side effects go away.

My 16 year old son took Singular for three days. Almost immediately after taking the first dose, he starting having increased blood pressure, rapid heart beat, tiredness, depression, thoughts of death, muscle soreness, tingling in his arms and legs, numbness, weird dreams (when he was actually able to sleep) and decreased appetite. He seriously thought that he was going crazy. It was not until I did some internet research that I finally linked all of his symptoms to this horrible drug. He stopped taking it on Friday of last week and each day since has been feeling better. He is not 100% back to normal yet, but each day seems to be better. It was a scary three day period while he was using this medication. Hopefully it will only take another day or two to get out of his system completely.

My 3 years old daughter was on Singulair for 8 months, that was prescribed by her Pedestrian from the Asthma clinic in Canada, Quebec. Lately, some of the symptoms of adverse effects are surfacing in her, including depression, action very emotional, constant having bad dreams (which causes tiredness), crying almost whole day in the daycare, refusing to eat and drink, refusing to join her favorite activities... Her Pedestrian told us there is no side effect on Singulair when she renewed the prescription 2 days ago. Because of my doubt about that, I started research on the web and found out that the early communication was issued by FDA. Of course, I took my daughter off from Singulair right away.

I work in the drug development clinical research field. I know that nothing the FDA or Health Canada will pursue until a lot of cases on adverse events (side effects) reported to them. Please everyone, if you or your child has had developed any side effects on this particular drug (Singulair), please report to FDA at once. It got me so upset is that this drug is constantly and widerly prescribed to children, and the Pedestrians are not caution enough to tell the parents. I definitely do not want to see other children suffer the same symptoms as my daughter had.

I have been feeling a sensation of pins and needles in my calves and a feeling of numbness in my feet. I know this is listed as a potential side effect but what are the indications? Also, dizziness and tiredness. I have been on Singulair for about 9 months.

Hi everyone
My little boy who is nearly two was put on Singulair as a preventative.
I did check on forums when we started using Singulair and I was concerned that there has been descriptions of negative affects. Always trying to be objective I rationalised that the people in this forum are a small part of the greater Singulair population and as a result there was a low risk of negative affects on my little boy.
I have to say I think I was wrong. As soon as he was using Singulair, he had restless nights of sleep. Every night he would cry off and on until 2am and I guess he was so tired he slept. During the day he was very short tempered and became upset very easily. We put this down to tiredness. After 10 days of the lack of sleep for parents and little one, we told our doctor.
He advised to take him off Singulair for 5 days and make observations and then put him back on. Last night, his first night off Singulair was bliss. Not a sound. He had a great sleep. As I type he is now having another great sleep.
Let us see what happens after 3 more days and after putting him back on Singulair.
It would seem that if we are correct and that Singulair is a cause of an issue for my child, am I a quasi beta testing laboratory for a drug?
We are from Australia.
Thank you for reading.

I am finally writing after reading these posts since the end of April. That is when I took my 11 year old son off singulair, in an act of desperation. He has been on singulair on and off for about five years for seasonal allergies. He started again in mid-March so it could get into his system, before the allergies started. Immediately thereafter his behavior changed. He was arguing on a daily basis. He would hit, kick or trip me when he was angry. He was starting to destroy things in anger. He seemed to be fueled by anger. It was affecting the whole family. He was starting fights with his younger brother, my husband's heart was palpitating and I was crying every day. I heard about Singulair side effects and looked it up. I saw that it caused behavioral changes and out of desperation, took him off, not knowing what to expect. We had three days of total peace, then on the fourth day another outburst. Then my son told me he had taken a singulair the night before. That was it. I threw every pill in the garbage. He no longers acts like that. It's been almost two months so I am convinced it was the Singulair. By the way, he always complained of headaches, stomach aches and would scream in his sleep. Who knew - it was the singulair all along.

I'm an 18 year old male and I've been taking Singulair for years; I don't even remember when I started taking it. I've had chronic sinusitis my whole life, and use a Singulair 10mg/ Allegra 180mg combo to control it. I never gave it a second thought. From my adolescent years on, I've been able to sleep (if undisturbed) for 15, 16+ hours a night, and have always felt like I was in a fog during everyday life. Getting out of bed has always been a terrible problem for me.

Throughout high school, I became progressively more depressed and apathetic toward school work, to the point where I dropped a number of classes my junior year. Got put on Prozac for a while, it helped a great deal with the depression, and seemed to give me enough energy to get through the week. I discontinued it after a year or so, everything was going okay (aside from mood swings and tiredness- explained away as symptoms of my age/hormones/going to bed too late), and then I went to college.

I had a mild depression that I think most people get upon leaving home for the first time, but the real problem was anxiety; I had a number of anxiety attacks, and decided to transfer to a school closer to home. I started Celexa and therapy- the celexa seems to take the edge off, but I fear its making me even more tired than before.

I've just heard about the whole Singulair controversy, and I am not taking it from here on out. I really hope that this whole ordeal was brought on primarily by the Singulair. After a month or two, I'll repost to report whether the symptoms went away.

(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.

My ten-year old son began taking Singulair two years ago to control infrequent, light to moderate asthma. I would say it is in the past year that noticeable, and extreme changes occurred in his health and personality. The list of negative changes is a long one. His physical symptoms have included:
frequent, unexplainable bouts of stomach cramping and diarrhea
Painful light sensitivity, listlessness, tiredness, inability to fall asleep, inability to wake up.

The mental/mood changes have been the most devastating. They include:

Withdrawal from friends and family.
Isolating behavior.
Unprovoked anger.
Dislike of being touched
Spaceyness/disorganization/forgetfulness
Depression
Lack of interest in school
Inability to wake in the morning (on weekends sleeping till one pm.)
Loss of interest in hobbies
Aggression
Mood swings (from placid to intense rage)
Talk of wanting to be abandoned
Loss of self-esteem
No joy ever

My son was once considered one of the smartest boys at school. He is a member of the Johns Hopkins Talented Youth program. He performed several levels above his grades in math. Last year all this extraordinary promise began to slip away. This is documented at his school. Recently a math test was given and he scored in the lower third. This may sound like no big deal, “so what if a kid performs below expectations,” but this was my child’s identity slipping away. What once came to him so easily was mysteriously vanishing. It felt like his brain had stopped developing. He no longer wanted to read, (once a favorite activity.) He began to lose interest in music, (once a passionate pursuit). I could go on and on about how his personality changed. About how his friends fell away. He once was a popular, fun-loving kid. What is the most upsetting and inexplicable was his constant sadness and dissatisfaction with life. He frequently said, “I have nothing good in my life.” And, “Why don’t you drop me off somewhere so I can live by myself on the street.” I couldn’t make any sense of comments like these. We had a happy family. Our house used to be full of laughter and fun activities. We have another son, two years younger, who would cry at the changes he was seeing in his brother who no longer wanted to go outside to play, or was even willing to talk to him. They were once best friends. If my younger son tried to make a joke he would be attacked physically. I could find no explanation and so told myself it must be adolescence come early. Friends of mine asked me if my son was sick and they told me they privately worried about his obvious depression. Nothing made sense.

The most devastating episode that happened was finding under his bed some writings where he talked about how the world was a miserable place with no chance of getting better. The only solution would be for him to die and fly away. This is coming from my sweet ten year old son, who once had such a love of life and learning. How could a boy this young be thinking of suicide? It seemed incomprehensible to me. It broke my heart. The next day (12 days ago) I saw on the evening news the report about Singulair being linked to suicidal thoughts. I WAS STUNNED. It all began to make sense. I pulled him off the drug that night and the change was immediate. For the first time in years he fell asleep before midnight. I have heard his beautiful laugh for the first time in months. He wants to go outside and throw the football with his brother. There have been many breakthroughs since he stopped the drug a week ago. I just hope they continue and my once learning-hungry, loving little boy returns to me.

I have headaches at night, difficulty getting to sleep (I think Singulair raises blood pressure for a few hours after taking it), and general tiredness during the day with Singulair. I would suggest Accolate. A similar drug, and I find few problems. No trouble sleeping, no headaches. Not quite as good for allergic asthma as Singulair, but I prefer it due to fewer side effects.

Okay- A friend just emailed this site to me, my son is 4 and has been taking Singulair for about 2 years. He has seasonal allergies which seem to be year round, asthma and food allergies. He is on Singulair and Allegra daily, this in it self freaks me out. What I have noticed for at least the past year is that when he is running around or moving a lot he hold his right side and says he has a pain in it, we now call it a "stitch". it happens not from strenuous activity, our doctor just says its growing pains, that doesn't make sense. something is bothering him it happens with somewhat frequency. I am really thinking about his behavior, it seems to me he can change on a dime. from happy to very angry, outbursts and then right back to sweet, yes this could describe any 4 year old, but not any 4 year old is on Singulair. I remember saying to him where is my sweet boy? I feel like that might have been when we started the meds, i am so used to his behavior now that it seems almost normal but there was a time he acted differently. and i do remember saying that.... was it when he went on Singulair???

Oh, wow. I've been taking Singulair for a couple years off and on, though definitely on for the past 6 months. I've had:
heart palpitations,
headaches,
eye-twitches,
all over back-muscle pain,
bowel/indigestion issues
anxiety attacks
and general tiredness.
it's freaked me out so much I've been to a few doctors including a cardiologist. they all found NOTHING. It wasn't until tonight that I thought to suspect Singulair. I'm going to go off it and see if it helps, though from the looks of the websites I'm finding- I think it will. It definitely has helped my asthma but it's not worth the side effects. Maybe some people don't have a problem with it....

This is only the 3rd day I'm taking Singulair. Tonight when I got home I quickly did a search for Singulair side effects. Here is what I had been feeling.

1) Extreme deep neuromuscular pain in my neck and shoulders and extreme pulling muscle tension along the length of my spine.

2) Thoughts of paranoia.

3) Extreme irritability

4) Heart palpitations

5) General feeling of malaise

6) Feeling that there is some toxic substance in my body ...

It is the Singulair!

7) Very very bad case of indigestion and upset stomach

diahorrea, vomitting, joint aches, tiredness

I have been on singulair for awhile now along with other meds. I also have hypothyroidism. I've have been blaming all of my tiredness and pain on that but now think it could have something to do with the allergy meds. I'll have to try to wean off a little at a time and see how I feel.

My 5 year old was on Singulair for 30 days for coughing asthma. Our normally happy-go-lucky daughter suddenly changed into a crying, clingy child who was tired all the time. Her mood swings were severe and she was complaining of nightmares. She is normally very easy-going and loves kindergarten. Now she was crying at the bus stop. She was not eating and even fell asleep at the breakfast table. We, along with her teacher, were so shocked and confused!!! I only thought to look at the side effects of Singulair because I was calling for a refill and it got me thinking. The information on the prescription form did not mention tiredness, mood swings or nightmares as possible side effects. Only on-line did I find all this information....and I was SHOCKED. It sounds like 90% of the posts include nightmares.......I don't understand why the drug company would not warn parents of this. How are small children supposed to realize what is happening to them.....I think parents need to be told to WATCH for symptoms. We stopped using the Singulair immediately, and I discussed the information I found on-line with our pediatrician. She was anxious to read it, and says she has NEVER heard of any side effects from any of her patients. I also let the pharmacy know of my findings. How is it possible that there are such severe side effects out there, and no one knows? I have been telling EVERYONE I know.....just so people are aware. The pediatrician would like us to try Advair next......but I am extremely weary now.

My daughter, age 4, has been taking Singulair for a couple of months now. She has serious allergies and asthma, both of which seem to have been contained almost immediately. But, like the rest of you, she began experiencing odd issues.

I didn't give them much thought until I saw all the postings today. The issues I have notices are: 1. Pain in her hip and joints. 2. Agitation, restlessness and aggressive behavior. 3. Inability to sleep. 4. Tiredness and fatigue. 5. Headaches. 6. Bruising. 7. Within the last few days, I noticed what appeared to be a mosquito bite, but just seems different. Will be talking to the doctor later today. Thank you all for your postings.