Reviews for ZYRTEC

350 ratings: (age 12 or younger)

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 ANTIHISTAMINES

 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
 
 1  son's hay fever could lead toasthma Normally well-balanced 7-year-old son became emotionally unstable, crying and having tantrums every day. Vivid nightmares. This was when I used 5 mg instead of 10 mg as prescribed for my 50-pound child. Tell everyone you know. Try to get the word out to the media (a la Singulair). I trusted the allergist. The doctors won't mention these effects. See the hundreds of posts from parents below! Be WARNED. What are these allergists thinking to ignore SUCH psychotic effects on children (like Singulair and who knows what else). We'll try Claritin if we have to have something. M 7 10 days
6/4/2008
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 1  2 year seasonal allergy Gave my two year zyrtec for seasonal allergies and it caused irritability and sleepiness. She would get up screaming at night and then be wide awake for a few hours before I could get her back to sleep. Should not give this to children. F 2
6/3/2008
 2  seasonal allergies, My daughter was on when she was 2 yrs old she is now almost 3. She has been having very bad tantrums, not listening, hitting. She was once very sweet and we thought it was just the terrible twos but the behavior just did not get better, only worse. After reading up on this, I know it is the zyrtec and will stop. It helped with her allergies but the behavior changes is not worth it. F 2.5 1 years
5/24/2008
 1  allergies So many they will not all fit. The worst is that now my 10 yr old has seizures. And we now have to take her to a specialest. also was told she was ADD and she isnt..... want to warn all parents,dont give this drug to your child.. Also We the parents want to sue the company who has made this drug.... F 10 6 years
5/24/2008
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 1  Eczema, allergies Out of character temper tantrums, throwing his body on the ground, inconsolability, severe frustration and crying attacks, fatigue, and difficulty waking in the morning. We will stop use of this drug immediately and go back to Benadryl. M 4 4 days
5/23/2008
 1  allergies my 4 year old has been taking Zyrtec for 5 days and over the past couple days he's been tantruming much more than anytime in the past many months. I did a web search on zyrtec and behavioral problems in kids because he's increasingly not been able to deal with situations that he usually would be able to handle -- finding this website and the many, many comments about similar reactions to zyrtec quickly convinced me to stop giving zyrtec to my son. M 4 5 days
5/3/2008
 1  to reduce fluid in ear My once pleasant and polite 6 year old daughter turned into a she-devil. She began having attacks that were almost panic-like. She absolutely could not control herself. We did not immediately make the connection to the medication as she had been taking it for approximately 6 weeks prior to these symptoms. We started with behavior modifications and nothing worked then something clicked and I looked into drug side effects and was relieved to see that maybe it really wasn't something that she could control. She has extreme night terrors and completely freaks out. She cannot be controlled at these times. She also has been very mean to her younger sister and cousin. You cannot talk sense into her. She has been off the medication for 4 days now and last night was the first night in 2 weeks that she did not freak out when she woke up in her bed. She did wake up but only once with no behavior problems. I am hopeful that as the medication leaves her system our daughter will return! F 6 6 weeks
4/20/2008
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 1  5-yr-old daughter has allergies Mood swings, irritability, tearfulness, fatigue, sleepiness. My 5-yr-old daughter has seasonal allergies and we tried OTC Zyrtec for the first time. It worked great on her allergy symptomms, however her behavior changed and I couldn't tell why until weeks later a friend of mine told me about her daughter's experience with Zyrtec. My normally happy and sociable daughter was cranky all the time, and would have meltdowns similar to those of a 2-year-old. She was crying non-stop on some days, and just seemed overall miserable and depressed. I have stopped giving her Zyrtec 2 days ago and am hoping to see improvement soon. I am glad I stumbled upon this website and read all the comments. I'm not alone!! F 5 3 weeks
4/20/2008
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 1  allergies aggressive / temper tantrums /emotional outbursts This medicine should not be prescribed to children!! M 2 9 days
4/17/2008
 1  chronic sinus infections sleeplessness, stomach pain, mood changes: defiant, aggressive, crying, nightmares, hyper Last spring my son took Zyrtec for the first time. For two weeks he was out of control. Totally disrespectful, not listening or following directions, hitting and kicking at daycare. Took him off after 2 weeks and symptoms went away. A month ago, Dr. suggested back on it as Claritin was not working. Tried it again (thinking that maybe last years issues were caused by something else). Same thing happened. He cannot concentrate, refuses to do activities, hitting screaming kicking etc. He will stop taking it tonight after reading 105 pages of negative side effects of this drug. M 4.5 1 months
4/17/2008
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 1  Seasonal Allergies VERY emotional and worried!!!! Easily frustrated and irritated!!!!! Some of the same side effects as mentioned. DO NOT GIVE THIS TO YOUR CHILDREN! Thank God for everyone who shared thier experience concerning this drug because we did not find this information elsewhere! DO NOT GIVE THIS TO YOUR CHILDREN! F 4 1 years
4/16/2008
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 1  allergic rhinitis my son has been taking claritin prn for the past few months for allergic rhinitis sxs. We did notice it made him hyper, especially if we gave it to him in the am. We switched to zyrtec last night and noticed that he was extremely irritable all day today, crying at the drop of a hat. We didn't thnk much about it , as he was also sick. However, tonight after his second dose, he woke up at midnight hysterically screaming. When we went to comfort him , he was aggressive and angry and very difficult to console. Had I not read the other comments on this site, I would not have believed it was the zyrtec. I will never give it to him again! We also noticed more aggressive and moody behavior when he was on singulair. He has been off that for 2 days now. We will go back to claritin and his flonase nasal spray. Please call your pediatricians and allergists if you experience similar reactions in your children. If enough people make complaints , then action will be taken. M 2 2 days
4/7/2008
 1  Eczema, seasonal allergies Extreme mood swings, anger, inability to cope with even the slightest disagreement, screaming, drowsiness. General insanity. DO NOT give this evil stuff to your child. My daughter experiences both a chronic eczema as well as hive like breakouts made worse during allergy season. I have tried Zyrtec on 2 occasions and experienced the same side effects both times. I can't even believe I tried it a 2nd time. I am even more galled that it is now available OTC. Have you noticed that when looking through the list of antihistamines here that Zyrtec has the most responses??? This is why. I believe it's just too strong for kids. Stick with good old Benadryl at night. F 4 3 months
4/3/2008
 1  Allergies Depression, temper-tantrums, mood swings. This is like a body snatcher. I've been fine, then after the zyrtec, I want to kill myself. NO ONE TAKE THIS MEDICINE! M 12 3 months
3/14/2008
 1  Allergies aggressive bad behavior, irritability, temper tantrums over tiny thing. Would go crazy like a wild animal then crash down to a sobbing little boy. Never will i give this to my son!!! We know it's the Zyrtec causing this behavior for we tried it two different times. Claritin has given him the same side affects also. We would rather see him suffer the allergies than be on these meds. M 6 6 days
3/10/2008
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 1  runny nose, allergic cough Facial tics (squinting), aggression, night terrors, depression, overly emotional behavior, halucinations, totally zoned out at school This medication almost ruined my daughter's life. I had no idea this drug was the cause of so much of our misery until I found this site and took her off of it (very slowly to avoid the horrible itching that always happened when we skipped a dose). Try to find an alternative to this drug. We use Nasalcrom with no problems so far. F 8 5 years
2/12/2008
 1  allergies severe stuttering and vaginal irration my daughter began this med when she was 2 years old. within 1 month she began to STUTTER. she has been on this med about 1 1/2 years. we have spent thousands of $ on speech therapy and it has not helped. the stuttering has become worse over time. the zyrtec dose was upped over time due to her weight gain. the more zyrtec, the more she could not complete a single sentence. i took her off of it 1 week ago and have seen mild improvement and severe withdrawl (itching, crying, sleeplessness, depression). she has also experienced vaginal irration for about 1 year, so much that i took her to a gyn 2 weeks ago and had her tested for ANYTHING and everything. all of her tests came back normal. i began to suspect zyrtec after praying about it. i am now convinced that it is the medication.. anyone else experience this? F 3 1 years
2/7/2008
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 5  year round allergies, pet allergies none Wow...what a great website! I've been reading others comments and simply can't believe what I'm reading!! My son has been taking zytec for about 3 years now, and we have never, never experienced any of the horrible side effects some have described. At the risk of sounding like "one of those parents", my son is a great student, straight A's, no behavioral problems, just an all around well-adjusted kid who is a good friend and leader in his class. Good luck to all you parents who've had bad experiences, but we love and will continue to use zyrtec when it goes OTC. M 11 3 years
1/23/2008
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 2  Allergies My son had been taking the Zyrtec 10 mg chewable for about 2 years. We recently switched to the liquid about three months ago. We have noticed some severe behavioral problems. He is extremely disagreeable, very moody, has outbursts daily and often seems very angry. He almost seems depressed. Often just minutes after an episode he will have a very calm and apologetic attitude. He has always been recognized by his teachers and other adults for his good behavior in the past. He has not been sleeping through the night. He's extremely tired in the morning and talks of very vivid dreams or even nightmares. He's also having great difficulty focusing both at home and at school. I was in the process of having him tested for ADD before learning that many children on Zyrtec are experiencing the same symptoms. It seemed to worsen these past few months when we switched to the liquid formula. Not sure if there is a connection. We have immediately removed him from the drug. M 8 2 days
1/21/2008
 1  Allergies behavior problems, didn't listen, angry, you name it. Also very tired during the day and very fussy. In my opinion, this is VERY bad medicine for young children. Like many readers this was the only place that I found to confirm my thoughts about this medicine. The drug companies would loose lots of money if the truth were told. Once I stopped giving my son this stuff he returned to his normal happy self. For a while I thought he was possesed. I feel like a bad parent having given him this stuff for as long as I did. Don't make the same mistake........ M 4 1 years
1/18/2008

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