Reviews for ZYRTEC

350 ratings: (age 12 or younger)

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 Type: Over-the-counter Drug

  

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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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RATING  REASONSIDE EFFECTS FOR ZYRTECCOMMENTSSEXAGEDURATION/
DOSAGE
DATE ADDED
 
 2  seasonal allergies trouble sleeping during the day during regular naptime, sore/dry throat, stomachace,loss of appetite, nosebleeds My 2 1/2 year old was on Zyrtec liquid at night for 1 month and had these side effects. Once we went off Zyrtec, the issues stopped. Not happy. Not happy at all. M 2.5 30 days
10/24/2006
 2  Allergies My son's behavior changed so dramatically that I was looking into him seeing a child pyschologist. I noticed that his violent and depressive mood swings coincided with his taking the medication. As soon as I took him off of it he was fine! I was so relieved to see that others had the same concern. M 7 60 days
10/16/2006
 1  son's cold/allergies Within an hour of giving our 20 month old 1/2 tsp Zyrtec as the doctor prescribed, our son woke up screaming desperately. For the next 3 hours, he could not be consoled, running around, trembling and screaming as though terrorized. Occasionally he would fall asleep for a short while, only to wake up screaming again. It was really painful to watch. We were about to take him to the emergency room, but the doctor on call said to wait a while longer. He has never ever behaved like this, and he had not eaten/done anything else different, so we know it was the drug. This drug should NEVER be prescribed to children! M 1.5 1 days
10/14/2006
 1  Seasonal Allergy My 7 year old daughter become unable to focus, had trouble concentating in school, complained of headaches, became extremely unhappy, and experienced weight gain while on Zyrtec. And, thankfully within days of switching to Singular we are seeing "our daughter" back again. The side effects are horrible! F 7 45 days
10/8/2006
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 1  Seasonal Allergy My 7 year old daughter become unable to focus, had trouble concentating in school, complained of headaches, became extremely unhappy, and experienced weight gain while on Zyrtec. And, thankfully within days of switching to Singular we are seeing "our daughter" back again. The side effects are horrible! F 7 45 days
10/8/2006
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 1  allergies - heyfever My 4 1/2 yo son was put on Zyrtec to help control his hayfever. He experienced heightened behavioral problems at preschool - including intense hyperactivity, distractibility and inability to attend. He also experienced stomach problems and had diarrhea every day while on Zyrtec - at first we thought the diarrhea was directly related to an antibiotic he had been put on for 7 days but now we know he was cramping due to Zyrtec. I might add that my son's doctor mistakingly put him on 10 mg instead of the 5 mg he should have been taking, for his age group. I am taking my son off Zyrtec - all together - and will see if that helps him get back to being "him" at school. If so, we might try a dosage of 5 mg at a later point in time. But after reading the comments here, I'm even skeptical about that level dosage in kids. Last night was his first night off of it and he woke up, mid night, with violent stomach pains, cramping and intense diarrhea. M 4 3 weeks
10/4/2006
 4  allergy to dogs irritibility, agitation, uncontrolled crying and anger. My son uses Zyrtec only when he is going to be around dogs for an extended period of time; maybe 1-2 times a month when visiting family. I was blaming the behavioral changes on him being tired, etc., but it was too much of a coincidence. It works great for his allergies, however, the side effects are not worth it. M 2.5 2 days
9/25/2006
 3  Allergies / Asthma Increase appetite, weight gain my daugther is 3 1/2 years old and has been eating ALL day! she will not stop eating. She has only been on this for 2 weeks and her allergies seem ok right now - but can't believe the increased appetite. F 3 14 days
9/23/2006
 1  Suspected allergies My almost-2 year old daughter started taking zyrtec because we thought that her coughing and sneezing was due to springtime allergies. Her personality totally changed on the zyrtec. She threw terrible tantrums, was completely irrational and unhappy, and became extremely moody. She would wake up at night screaming and crying and was very difficult to soothe. She became almost like a different person. Once I suspected the zyrtec was the root of the problem, I took her off immediately (she was only on for about 4 days). Within 2 days, she was back to her old self. I STRONGLY adivse parents who are prescribed zyrtec for their children to monitor them closely and look for behavioral changes. No one warned me about it and I am just so thankful that we realized it so quickly. My ped had no idea about the side effects (and I am not sure I was able to convince him of it). BEWARE! F 2 4 days
8/7/2006
 5  Allergies Dear Families with children experiencing side effects from Zyrtec, I am seeking legal action. Please contact me if you are interested! NEW EMAIL ADDRESS. CLASS ACTION POSSIBILITY! F 5 2.5 years
7/20/2006
 1  Allergies Dear Families with children experiencing side effects from Zyrtec, I am seeking legal action. Please contact me if you are interested! NEW EMAIL ADDRESS. CLASS ACTION POSSIBILITY! F 5 2.5 years
7/20/2006
 1  seasonal allergies my son was on it for about a month - he wanted to eat constantly! i'd say in that month alone he gained about 4 or 5 pounds - and that's alot! he already has svt - so he can't gain alot of weight at once, nor can he take any medicine. he also seemed a little altered - wasn't really into things. we took him off of it - he's a monster now. not sure if it's the withdrawal i've read about, or just the allergies driving him crazy -- i was on it for about two weeks. i couldn't function, wanted to sleep all the time, and had a really hard time getting up in the mornings. after what i've read, i would not recommend this to anyone - especially children!! M 4 30 days
7/17/2006
 1   Extreme nightmares, stomach ache, tantrums and not sleeping. My son was taking Zytec off and on since 6 months of age. He is 3 now. He is a wonderful child and sleeper. The last 2 weeks on Zyrtec - 1/2 dose has been hell. He saw a tv picture of a fire one day and hasn't been the same sense. He has been off of the poison for 5 days now and he is STILL having nighmares. This drug is terrible and we were not warned either. What to do next with his allergies???? M 3 14 days
7/9/2006
 3  allergy My son started talking two days after stopping zytrec. He was 2 years old and just jabbered. We were thinking we needed speech therapy. Two days after we ran out of his med on a long weekend he could suddenly talk were we understood what he was saying. We also went out to eat without him screaming. M 2 1 years
7/8/2006
 1  Nasal allergies We started giving my son zyrtec at around age 2 for his allergies in the fall, his drainage was so bad that we would become sick every morning. He also started mother's day out at the same time, would cry every day and continued this into the next year would not talk to the teachers or interact with the other children. He also was stuttering when he would talk with us at home. After talking with the school I found out how he was not responding to them at all. So I had him evaluated by a speech pathotoligst and the evaluation was to take 45 min. because he would not talk to them took 2 hrs. At this time he got a severe sinus infection and the Dr. put him on a antibodic for 14 days and took him off the zyrtec during this time he did not stutter and at the 2nd testing they did not pick up on the stuttering but did have him evaluated at the school and after watching his action in the class room suggested that I have him tested for selective mutism. He has now been off the medication for 2 I think he was just always in a daze, he was also very difficult to manage with crying alot and not wanting to particiate in any activties. M 4 2 years
6/16/2006
 1  hay fever After the first dose our daughter was having violent outbursts and behavior and also had a depressed affect. We are taking her off a.s.a.p. Thankful to have found this site and put two and two together. F 6 2 days
6/7/2006
 1  allergies Allergy symtoms got better for awhile, then had to switch my son to singulair because he wasn't responding to zyrtec anymore. He took it from age 20 months until 3 years old. He is now diagnosed with PDD. A developmental delay - could it be related? His problems started around the time we started the zyrtec. It makes me so angry that I wasn't informed about the potential side effects. My child is now delayed in speech and social skills. He is been off all allergy meds for 1 week and is much better, talking more and using his imagination.DON'T GIVE THIS TO YOUR KIDS! M 3 16 months
6/6/2006
 3  runny nose and other allergies With my first son, I noticed that he only got in trouble at pre-school on the days I remembered to give him his zyrtec. We had to choose between good behavior and runny nose. Now my two year old has been taking zyrtec for a year and a half. I am considering taking him off the medication because his behavior is awful. I had no idea so many other parents have had the same problems. Zyrtec worked wonderfully for both my son's when the had a runny nose and helped stop the cycle of runny nose then bronchial infection. M 2 2 years
5/26/2006
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 2  Seasonal Allergies My 6-year-old daughter went from a happy, beautiful child to an emotional trainwreck. Allergies and puffy eyes went away, but in their place was a teary, depressed, befuddled and evil child who slammed doors, broke glass, and acted out verbally. I am mortified that I put this poison in my daughter's body. After reading the other comments on this site, my heart goes out to all parents who tried to help their kids and, like me, turned them into monsters. My daughter has 10 days left in the school year, and she will attend with puffy eyes and a booger nose, and be her happy, normal self again. I'll spend the summer finding alternatives that let me keep my daughter sympton free AND happy. Any other parents, feel free to e:mail me! F 6 30 days
5/21/2006
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 1  Chronic Sinus Infections Irritability, crying, sour throat, tiredness When we tryed taking her off, our normally well focused child has problems following directions, focusing, itching and stomach pain. None of these problems existed prior to medication. She was originally seen for sleep apnea type symptoms and chronic sinus infections. If we use this drug in combination with Singular, the sleep apnea type syptoms seem to go away, but I wonder if their masking it because their making her sooo tired. I did sleep with her one night and she still had irregular breathing during sleep after taking just zyrtec. When we initially went to our Dr. about our daughter (she was 3 1/2) waking at night saying she couldn't breath and having constant sinus infections, we were sent to a ENT that said there was nothing wrong with her. We insisted something was wrong, her beathing was irregular at night. Our Ped. referred us to an allergist who put her on Zyrtec and when that wasn't enough, he put her on Singular as well. I hated the way she seemed like she was a zombie, so we just put her on nasal spray. We finally took her off everything and she experienced extreme itching in her ears and stomach pain. I agree that this drug is addicting, I put her back on and her itching and stomach pain stopped. After reading all these notes, I am t F 7 2 years
5/18/2006
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