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
 
 5  allergies dry mouth Every day for the past 9 or so years. Absolutely zero complaints. M 15 9 years
10 MG 1X D
1/17/2018
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 1  Seasonal Allergies Stuttering and tantrums We started noticing that our 2 year old had started stuttering and finding it difficult to talk when she previously had no issues. We have stopped using zyrtec now. What a scary medicine. F 2 3 weeks
2.5 mg 1X D
12/12/2017
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 1  Allergies I started taking Zyrtec for pressure in my head that I was having. I was afraid to take a whole pill so I took half of a pill for 14 days. I had a doctor visit so I didn't take the pill on the 15th day and by 11 a.m. I almost collapsed I thought my heart was going to stop I went into full-blown tachycardia and it caused very high blood pressure. I did not end up taking it that day and decided I did not want to take it again to see if that was the reason that I felt so awful. So on the 16th day so that would be day 2 of not having Zyrtec in my system I'm very anxious I feel like my stomach is on a roller coaster, horrific anxiety. I feel very dizzy I'm very confused, tremors and the list goes on...this drug is poison!!! Please do not take this drug it should be off the market. F 39 14 days
5mg
11/10/2017
 1  seasonal allergies tantrums, angry, aggressive, noncompliant, mean This made my 3 and a half year old son mean, angry, aggressive and frustrated. He didn't want to go to school. He was hitting me and his sister. He was not himself. I didn't recognize him. Thank God I found these posts and stopped this drug after week. I would like this to be listed as an official side effect with FDA. If anyone knows how to go about petitioning that side effects be added please contact me. This drug took a big toll on my relationship with my son and I am upset I was not warned of its effects. M 3.5 1 weeks
2.5 1X D
11/9/2017
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 1  seasonal allergies tantrums, angry, aggressive, noncompliant, mean This made my 3 and a half year old son mean, angry, aggressive and frustrated. He didn't want to go to school. He was hitting me and his sister. He was not himself. I didn't recognize him. Thank God I found these posts and stopped this drug after week. I would like this to be listed as an official side effect with FDA. If anyone knows how to go about petitioning that side effects be added please contact me. This drug took a big toll on my relationship with my son and I am upset I was not warned of its effects. M 3.5 1 weeks
2.5 1X D
11/9/2017
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 1  seasonal allergies Bad stiff neck. Continual dull forehead headache. Fatigue and just not feeling myself. I started taking zyrtec at night for my allergies thinking it would help with nighttime congestion and sleep. Woke up very tired first. After a couple of days started getting a dull headache, I seldom get headaches unless extremely congested. Then started having a stiff neck which worsen over a couple of days. In good health ans active other than allergies. I was planning to go to doctor and spouse suggested only thing I was doing different was taking zyrtec, so I stopped. After 3 days off starting to feel better. Stiff neck gone and headache less severe. Waiting to see if in a few days if all symptoms go away. My symptoms started only after taking this medicine. After reading others remarks I did have one day with some hives on my legs but dismissed it because I was playing golf and thought it was alot of bug bites. Never had adverse reactions to Claritin or flonase like this. Going back to them. These reactions should be also noted on product. And doctors should be wary of suggesting this medicine. F 58 20 days
10 mg
10/31/2017
 1  seasonal allergies Bad stiff neck. Continual dull forehead headache. Fatigue and just not feeling myself. I started taking zyrtec at night for my allergies thinking it would help with nighttime congestion and sleep. Woke up very tired first. After a couple of days started getting a dull headache, I seldom get headaches unless extremely congested. Then started having a stiff neck which worsen over a couple of days. In good health ans active other than allergies. I was planning to go to doctor and spouse suggested only thing I was doing different was taking zyrtec, so I stopped. After 3 days off starting to feel better. Stiff neck gone and headache less severe. Waiting to see if in a few days if all symptoms go away. My symptoms started only after taking this medicine. After reading others remarks I did have one day with some hives on my legs but dismissed it because I was playing golf and thought it was alot of bug bites. Never had adverse reactions to Claritin or flonase like this. Going back to them. These reactions should be also noted on product. And doctors should be wary of suggesting this medicine. F 58 20 days
10 mg
10/31/2017
 1  Seasonal allergies Anxiety, night terrors, personality change, emotionality, tics We gave our 10 year old daughter Zyrtec for approx 5 months ...it really affected her badly. We thought it was “tween hormones” at first but she became extremely moody, anxious, fearful, had spasms and just wasn’t herself..to the point where we consulted her pediatrician and took her to a therapist. We finally put two and two together and discovered that the only thing that changed in her life was the addition of Zyrtec. I started researching side effects and my mind was blown! Immediately took her off it and our happy, spunky little girl is steadily returning. It’s been a week and she’s a whole different child. We feel horrible that it took us so long to figure this out, our poor daughter was suffering for too long due to this supposedly “safe” OTC medication! F 10 5 months
10mg
10/24/2017
 3   F 43
1X D
10/18/2017
 1  Allergies asthma I had occasionally given my son Zyrtec or generic cetrizine 5mg during allergy season, but when the doctors prescribed a 10mg dose daily is when I finally put 2 and 2 together and the side effects really got bad. Each day of that week he got progressively worse with crazy out of control tantrums. He’s always been on the emotional side so I’ve seen a fit but these were awful, kicking, thrashing, head banging, hitting, like blind with rage, totally not reachable. He literally could not control it even when I could get him to hear me. It was so so scary. I can only imagine how scary it must’ve been for him. M 5 5 days
5-10mg
10/15/2017
 4  Allergies/Asthma Dry mouth in the morning. Zaps your energy levels a little bit. Really helps with my asthma, especially in the morning. Works much better than claritin and allegra. Make sure to take it at night before bed otherwise you'll be dragging your feet all day. M 56 3 months
10mg 1X D
10/4/2017
 3  
1X D
9/27/2017
 1  Runny nose It gives me a trippy feeling. Tremors are present in both arms and legs (especially the legs, and it also made them very weak that i can barely even walk). Makes you sleep in the morning but prevents you doing that at night. Also loss in apetite M 19 2 days
10 2X D
9/23/2017
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 1  Allergies night mares, stomach cramps, nose bleeds We will find out in the next couple of days, but I think the Zyrtec has caused ulcers in my son...I won't recommend this. M 8 1 days
5 mg
8/21/2017
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 4  Allergies Slightly drowsy during the day but not nearly as bad as benadryl. Performs as advertised but still makes you a little sluggish during the day. My advise is to always take it at night before bed. M 56 3 months
10mg 1X D
8/19/2017
 1  Demographism, Hives and Allergies Everything everyone else said is absolutely true. This drug may help with the severe itchiness and hot feeling underneath the skin and hives but the side effects are truly unbearable! - It shuts me down for at least two or three days! I truly cannot function while on this drug. I experience extreme fatigue and it is impossible to function. It is a terrible state of mind to be in because you need to live your life and do things. With this drug, your emotions are all over the place because you wonder to yourself, what is wrong with me? You cry, you feel as though you're going crazy and you can't function and you have things to do. It totally shuts down your life. It's like a mind control type of thing. All you can really do, is sit there and feel totally, totally out of it and feel down, super, duper groggy and depressed and hopeless. - I feel this way whether I bite a piece off of a pill on take the whole thing. This pill totally controls your life. - - All of this, just to try to g It's a shame that a drug whose milligrams are so small, could cause such a huge effects of tons of people and the manufacturers and Food and Drug Administration would not do anything to make them edit the drug to prevent these horrible, horrible mind and body controlling effects. All of this simply to prevent itching. - What a shame! - What's even more, is that right now, I have no choice but to take it . . . because I suffer so badly with the demographism and hives. F 50
10mg 3X W
8/12/2017
 1  Hay fever Feeling dizzy, extremely tired, bad stomach, feeling sick. I will never take this medication again. 24hrs after stopping I still feel rough and have an upset stomach. F 46 2 days
10 mg
6/29/2017
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 1  Seasonal Allergies Racing Heart Rate, Anxiety, Dissociation, Cotton-mouth, agitation, restlessness, strange thoughts Effects lasted for over 12 hours after taking the half dosage. This medication is SCARY, I felt completely unlike myself. Not worth it. F 22 1 times
5 mg
5/24/2017
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 1  My son's seasonal allergies My son, age 7, has been experiencing extreme anxiety recently, including feelings of paranoia, stress and worry. It's been frightening! He's been taking Zyrtec for about a month and although it helped his allergies, it's changed his personality. We have stopped Zyrtec and are hoping he is back to his happy self soon. Please remember to contact the FDA with any drug side effects. They can be reached at www.fda.gov/medwatch or 1-800-FDA-1088. The makers of Zyrtec need to know the harm that their product can cause. F 7 4 weeks
1X D
5/23/2017
 5  Allergies None It appears to lower my very high BP F 80 0 days
10
5/10/2017
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