ZYRTEC Reviews

Average Rating: 2.0 (1790 Ratings)

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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
 
 4  chronic idiopathic urticaria My 6yr old daughter had to start taking zyrtec eveyday to control her chronic urticaria, as time went one her behaviors just have gotten worse. To the point we were thinking about taking her to a pshyc dr. Don't know what else to do I have taken her off for a few days now and the attitude is already getting better. But I had to give her benadryl to keep her from swelling. Which they told me not to give her that cause of the alcohol in it. Does anyone out there that has Chronic Urticaria know anything that helps, without the deppression/anger issues. Please help, thanks! F 6 8 months
5mg 1X D
10/6/2010
Email
 1  ragweed allergies Pediatrician recommended to give our 3 year old son for his allergies. Finally, he slept through the night without coughing fits and congestion. However, this medication took my sweet-natured boy and turned him in to something unrecognizeable. Very naughty behavior, total defiance, hitting, throwing, lack of appetite, infrequent urination... Within 3 days of his first dose I realized what the cause of his behavioral changes were and immediately removed him from this medicine (and tossed the remainder in the trash). Very shortly thereafter he was once again my loving son. I sure hope that the makers of this drug read these observations and determine a fix. It's a real shame when something that is supposed to help you can change you in to something completely unrecognizeable. ps: called the pedicatrician's office and they were aware of the possible reactions and noted in his file that my son can not have this medication. F 3 3 days
1 tsp 1X D
10/5/2010
 1  Allergies & Allergy Induced Asthma My 6 year old was switched from Singular to Zyrtec when he was having too many problems with his Allergy Induced Asthma. Soon after we noticed a handful of changes in him. First we noticed that he was starving all the time, then he started to be moody all the time as well, throwing fits, being mean, rude, yelling, etc. We are taking him off of it as of today to see if my happy, polite, well behaved 6 year old comes back. That was the only thing that changed 3 weeks ago and I cant imagine there being any other cause. M 6 3 weeks
5 mg 1X D
10/5/2010
Email
 1  seasonal allergies I had a bad case of hives from spring seasonal allergies. I had tried Benadryl (worked, but made me very tired) and Claritin (the 24 hour dosage only lasted about 12 hours). I gave Zyrtec a try. One five milligram pill at 6 am and I was completely wiped out for the rest of the day. I felt like I had taken an entire bottle of Percocet. The next day, I was about 50% better, but still not myself. The Zyrtec did help with the itching, but I couldn't believe how awful I felt after a single dose of an over the counter medicine. I got a shot of Solu-Medrol at the doctor's office and threw away the remaining Zyrtec. F 40 1 days
5 mg 1X D
10/1/2010
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 5   No side effects, only that it takes about an hour and a half to kick in. I started with an uncontrollable itch all over my body, after taking ZYRTEC, I have been just fine, I only take it when needed. F 40 1 years
30 MG 1X AN
9/30/2010
 3  seasonal allergies Exhausted, shakey and very irritable. Every time I take this drug to dry me out (when the Nasonex isn't cutting it) I feel like a zombi. I'm exhausted, shakey and very irritable the next day -- snapping at everything and everyone. I just want to scream. I need to find an alternative as this is not worth the relief I get from the nose drip! When my young son was on this he was also very irritable. Doing much better on Xyzol. I may need to look into that for myself. F 46 5 days
10 mg 1X D
9/30/2010
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 4  dustmite allergies Realizing that my son, age 15, has been experiencing sleepwalking, and it is getiing worse. He almost walked out of the house at night, and he has become frightened to sleep lest he sleepwalk again. We are not going to take it for 30 days to see if it makes a difference. M 15 365 days
30 mg?? 1X D
9/29/2010
 4  Seasonal Allergies drowsiness Since reducing my dosage to 5mgs per day I haven't felt the side effects listed before and, I still don't have horrible allergy symptoms. In short the lesser amount of Zyrtec is just as effective as a whole pill but the side effects are mostly gone except drowsiness for about an hour after waking. F 39 6 days
5 1X D
9/21/2010
History
 1  severe allergies anger, suicidal thoughts, severe weight gain, depression, insatiable hunger, feelings of hopelessness, lack of motivation There is a woman who commented that there seems to be a 'made up' symptoms and side effects because she has never personally had any. That is ridiculous. Your skepticism doesn't help anyone. For years I have wondered why I continued to gain weight even though I lowered my caloric intake and increased activity. I've never had trouble losing weight in the past. I started taking it in Korea where we were stationed in the military. The allergies were awful. Both my son and I had the same symptoms. Both of us were angry, hungry, irritable and depressed. When we left Korea we stopped taking it and got better. We are in South Texas now and both of us started taking it agin--even though we are in a happy situation, we became depressed, angry, suicidal and had increased hunger and weight gain again. I am happy to have found this website because after I did, I got off zyrtec and I am my happy, healthy self again. I'm losing weight and my son is more stable emotionally. Please do not criticize other people's reactions. Just because you don't have them doesn't mean they don't exist. I am also severely allergic to morphine--just because you are not, does that mean by your calculations I will not die if I take it? F 40 2 years
10mg 2X D
9/21/2010
 1  seasonal allergies I am so glad to read that other people are having the same side effects that I am and I am not losing my mind. I have become depressed, irritable, angry, and can't stop eating - all since starting Zyrtec 13 days ago. I am stopping it today though. I can't tolerate these side effect any longer. I don't think my family can either. F 42 13 days
10 mg 1X D
9/17/2010
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 1  year round allergies after not taking zyrtec for 3 days I begin to itch severly all over the trunk of my body, now it is down to 2 days. Even when I have no allergy symptoms I have to take it to keep from itching to death. It helped for the first several years then I found I could not stop taking it even when I didn't need to. How can I get off this medicine? I told my doctor and he said well you must be allergic to something. F 56 5 years
30 mg 1X D
9/14/2010
 1  allergies WE gave Zyrtec to our 3 1/2 year-old daughter at her pediatrician's recommendation as she was continuing to have allergy symptoms on Claritin and frequent ear infections. She had an immediate personality change. Moody, defiant, temper tantrums, uncontrollable rages, sleep disturbances, wanted to be held and rocked constantly, wouldn't/couldn't play. Over a few weeks the symptoms improved somewhat, until we missed one morning dose and we were right back to square one with the significant behavior issues. She also has lost two pounds this month due to lack of appetite. We were trying to keep her on it until the fall allergies abated, but this cannot go on any longer. We have put her back on Claritin and will give her benadryl at night if needed to control the symptoms. After two days we are starting to see our sweet angel again. The change in personality in this child was beyond belief, down-right scary. F 3.5 1 months
2.5 mg 2X D
9/14/2010
 5  All year around allergies none First I would like to say is, Why would you give children an over the counter med without a Dr's approval. There are many over the counter meds for children but I wouldn't give my child it without an ok from the Dr. I love Zyrtec. I have major allergies and have tried everything. Over the counter, rx from Dr and nothing helped. Then one day a Allergy Dr gave me a sample of Zyrtec. It was new on the market. I loved it! Won't take any thing else. and when they can out with their eye drops I was in love all over again. Again before Zyrtec eye drops I tried all the rx drops, all the over the counter eye drops and my eyes still itched. My eyes itched so bad I have scars on my eye lids from rubbing them. One drop of Zyrtec eye drops and the itch was gone. I found heaven all thanks to Zyrtec. Thanks Zyrtec, your #1 in my book. F 53 10 years
10 mg 1X D
9/13/2010
 5  allergies moodswings, drowsiness I've been taking Zyrtec off an on for seasonal allergies since I was a kid. It's the only thing I could find that really helps with the minimal side effects. HOWEVER, If i take zyrtec too late a night i just cant get up in the morning. so obviously i suffer drowsiness with it. Also, I get really moody and sensitive a few hours after taking it. I find taking it at about 8 PM is best.. I'm asleep before the moodiness sets in, and I'm able to wake up on time. Abiding by these rules I'm fine with it F 21 13 years
10mg 1X D
9/13/2010
 1  allergies My 7 yr old child who makes good grades and has never once been in trouble for anything at school was suspended with a behavior problem. It was totally out of character and the teachers and principal could not believe it. He became an anry, irritable, destructive child with strange and irrational behavior. We made an appointment with a psyc doc. It was not until several days later I realized the only change was that I had started giving him allergy medicine. Who whould have thought allergy medicine could do this. He stopped taking it and is completely normal without behavior issues. Could not believe it. I am so sorry that I gave this medicine to my child. I will never ever recommend anyone give this medicine to children. I am curious if anyone else has experienced this similar problem with this drug. Please please let me know if you have. thank you. M 41 9 days
5mg 1X D
9/11/2010
Email
 3  Dust mite allergies None, actually, but I usually do not experience side-effects of any drug. The stuff works great... Sometimes. And when it DOES, it's only for about a third of the time it says it should last. I have NEVER gotten 24 hours out of it. On the other hand, my allergies are pretty extreme. So I would recommend it to someone with less severe allergies. As for people like me, I'm planning on asking my doctor about something stronger. F 15 4 months
10 mg 1X D
9/10/2010
 1  allergies Headaches, behavior changes, throwing fits My daughter has been taking Zyrtec for almost 2 years. The past year and half have been horrible. She is 6 years old and will throw fits and scream and cry like a baby. She has a hard time concentrating and in kindergarten last year, her teacher was worried she may have autism. We have been to a neurologist over her headaches. I had no idea about all of this and am so thankful for this website. Me and my neighbor were talking the other day and she had said that she had given her daughter zyrtec one time and it totally changed her and it made me think. So my daughter hasn't had any zyrtec in 5 days and yesterday her teacher called me to tell what a good day she had in school. I was amazed. I thought I would look up side effects of zyrtec today and it feels like I wrote a lot of these posts b/c my daughter has such similar issues. No more zyrtec for any of my kids!! F 32 2 years
1 tsp 1X D
9/8/2010
 1  Seasonal allergies My two year old son, who has always been sweet, loving and agreeable started taking Zyrtec for seasonal allergies and his entire mood, demeanor and attitude completely changed. He started acting like a different child. He became angry, violent, didn't want to eat, irritable, weepy and clingy. He would wake up screaming NO at night, when he never had sleeping issues before. He would smash his head on things, hit himself, pull out his hair and crush food and throw it everywhere when he was frustrated, sad or scared. The only thing we can attribute these changes to is the Zyrtec. All these symptoms started when he started the medicine. I have stopped giving it to him after reading this website because I now know I am not crazy! Thank you for posting this information so parents like me are more informed about what their child is really getting. I am disgusted that these possible side effects are not disclosed in the packaging!!!!!!!!! It is HORRIBLE and I will NEVER give it to my child again!!!!!!!!! M 2 2 months
10 MG 1X D
8/30/2010
 2  Runny eyes, sneezing, allergies irritable, tired around day 8 did not work at all in relieving runny eyes, sneezing F 66 10 days
10 mg 1X D
8/28/2010
 3   F 35
1X D
8/25/2010
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