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
 
 2  Allergies I am so thankful for this website. I thought I was losing my mind. After taking Zyrtec a couple of weeks ago for seasonal allergies, I thought my "down" mood was a result of other things. I quit for a while and took one last night. When I woke up, I was unusually irritable. Things that shouldn't upset me would throw me into a fury. Usually passive and easy-going, I realized that this medicine transformed me into something I did not like. Not that I'm happy I see others experiencing this, but this website lended some validity to my hunch that Zyrtec was causing it. For the people running this survey, sex is male/female (biological); gender is masculine/feminine (a social trait). M 28 1 days
10mg 1X D
6/23/2010
 1  seasonal allergies depression, lack of concentration in school, panic attacks, fear and anxiety, anger. My 9 yr old son was prescribed Zyrtec by his pediatrician. We noticed an immediate change in his attitude, behavior and grades. He was a very happy, motivated, straight A student. His personality completely changed. We thought his mood and behavior problems were just caused by his age and a new friend. We had no clue about the side effects of this drug until he stopped taking it just to see if his allergies were gone. After stoping the drug. It took about 10 days for the panic attacks to start(multiple times a day). He would just cry and shake and say his head felt funny. After taking him to his doctor, getting lab work done, EEG, EKG, referal to a pediatric psychologist I was told about the effects of this drug in children. I can't believe doctors are not talking to their patients about these severe side effects!!! Take your child off of this drug immediatly!!!!!!! M 9 5 months
10 MG 1X D
6/23/2010
Email
 5  seasonal allergies None I'm posting to counter many of the negative comments which can be attributed to other factors, and to counter the the self-selection bias. Sure I've had dizziness, problems falling asleep, and hair loss, but all of these occurred long before I started taking Zyrtec! In the interest of full disclosure though, I only take enough to counter 95% of my symptoms so I'm not "flying blind" and risking overdosing. M 33 1 years
2.5 to 5mg 1X D
6/21/2010
 3  bad cat allergy Took 24 hrs for my legs to get rid of the edema. I have not taken zyrtec to two days and so far no problems with the cat. I'm trying to see when the cat allegy kicks in so I know about how long I have between when I need to start/stop. F 56
10 1X D
6/16/2010
History
 2  Seasonal Allergies My 4 yr old experienced severe depression (as I call it considering she is 4). She withdrew from her favorite activities, like singing and dancing, stopped eating her favorite foods, would constantly say she felt like crying or she was sad. Did not want to go to school, would wake up ALL night long with nightmares, said her sheets were bumpy, it was crazy and my family was going crazy. She was extremely clingy and weepy, she also would have outbursts of crying or whining for no apparent reason. Took her off the zyrtec and within two weeks, I had my joyful, loving, playful, full of life daughter back. Never taking zyrtec again, especially for extended periods of time for children....NEVER! F 4.5 2 months
5 - 7.5mg 1X D
6/15/2010
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History
 1  seasonal allergies Bought this instead of Claritin which I have taken for years with noe problem. Within hours- stomach ache, bloating, no appetite and my mood changed. Symptoms did not go away. Took Zyrtec for three days and finally connected my gastroparesis with this OTC med. Vivid dreams started first night. Will never take this again. F 56 3 days
10 MG 1X D
6/15/2010
 1  Allergies Drowsiness, lack of concentration,lack of motivation,EXTREMELY INSANE VIVID DREAMS,hearing voices, hallucinations, ANGER, mood swings HAIR LOSS. Last summer i found out that i didnt have a weak immune system, i just had allergies. Since then, I found Claritin did nothing for me and neither did the nose pumps, when i discovered zyrtec it was a different world. Although it cleared up all my allergies i began to notice an unusual amount of vivid dreams, sometimes even voices in my head, definitely nightmares. They would only happen 1-2 days after taking the pill. A lot of the people i talk to on a normal basis believe i've been going through serious mood swings that i never had before. People have told me that they do not see the motivation they used to see prior to taking the medication. i've also experienced hairloss on my face, primarily on my sideburns. M 19 9 months
10mg 1X D
6/14/2010
 1  seasonal allergies Severe stomach pain and bloating. 24 hour dosage did not leave me symptom free during that time period. F 37 2 days
1X D
6/13/2010
 3  Chronic year-round allergies I used to alternate taking this drug with Claritin. For example, I'd take a Claritin one day and the next day a Zyrtec. Then I ran out of Claritin so I started taking Zyrtec daily. Zyrtec dried out my nose so much that it felt plugged up, which was only a minor side effect. However, it made me incredibly drowsy, and I would have to go lie down because I couldn't physically keep my eyes open. The worst side effect I experienced were very disturbing nightmares. I woke up multiple times in the night with these dreams that seemed so real and it was scary. It was not a pleasant experience. I also experienced a good bit of sneezing while taking this drug...so it wasn't that effective. F 22 2 weeks
10mg 1X D
6/10/2010
 1  Allergies anxiety, lack of sleep, depression, anger, lack of motivation I was told to take this by my physician. F 26 4 weeks
5 mg 1X D
6/9/2010
 4  bad allergies mild drowsiness at times; most people I know take it before bed for this reason; I take in in the morning, otherwise I forget; if you go off, you will have intense itching, which makes sense -- you've been taking an antihisamine, which controls allergies -- when you go off, your body has to readjust itself You people are nuts. I only checked these reviews because I have been on Zyrtec for years and if I go off, I am sicker than a dog in a week or two. I am about to go on Astelin spray also, and reviewers bashed it, so I thought I would see what the average person said about Zyrtec. And it was bashed also. It truly is great drug. I use the generic, and because my allergies are so bad certain times of year, I have to supplement with a spray. F 49 3 years
1X D
6/8/2010
 3  allergies Just classic drowsiness and feeling mentally fuzzy - but probably just due to being so drowsy. I could not take this med again unless I had a really severe allergy attack, because, even with 4 cups of tea, I can't tolerate the tiredness. :/ Took this for the spring allergy season - eyes and skin itching like crazy, congestion etc. Zyrtec works fairly well but made me drowsy, even half a pill. Weird positive side effect: reduced hot flashes. F 45 2 days
10 MG 1X D
6/8/2010
 1  Allergy (cypress pollen) Took before going to sleep. Racing/pounding heart 1 minute after taking (and for several hours). Abdominal contractions (for 15-30 mins). Extremely dry mouth. Woke up in the middle of the night with vivid dreams and feeling strange. Second night I only took a 1/2 tablet but just as bad for the heart and sleep disturbance. I then stopped the treatment but the sleep disturbance continued every night for 15-20 days. Two months later I am still regularly waking up at 3 or 4 am (often in a anxious state) a couple of nights a week (maybe once a month before I took the ZYRTEC). I also seem to be having fluctuating blood pressure (rose to 184 / 72 during sleep in a 24 hour test). After what I experienced I cannot understand how this drug is still on the open market. I took a generic made by Arrow (bought in France). M 45 2 days
10 mg 1X D
6/5/2010
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 2  Allergies When I slept on my right side I would dream that Bigfoot or chewbaca was watching me. When I would wake up I'd feel very drowsy and turn to my left side and dream a dinosaur or Godzilla was trying to swipe me with their tail. I would never take this medication. Also had sleep paralysis. M 40 4 days
5 1X D
6/2/2010
 5  Apparent allergies I had no side effects at all from this drug. Sure if I sat still and did nothing I would get drowsy. I would take this medicine at approx. 1-2 pm each day. (after already being awake for 5-7 hours. So I think it was just mid day drowsiness. This stuff worked great compared to how i was suffering before taking it(cold like symptoms). One reviewer complained of suicidal thoughts, another said irratibility and bad/weird dreams? Sounds to me like you folks were taking Chantix or some other drug to help quit smoking since those are definitely side effects listed on Chantix/Zyban sheets. I should add I began the attempt to quit smoking about the same time my "allergies" manifested themselves, so maybe the two were related. I havent had allergies since I was a little kid. I stopped taking the Zyrtec about two days ago and have not noticed any change in anyway so far as allergy symptoms coming back. Im thinking it was just a fluke as I was cleansing my body from 20+yrs of smoking. guess I will see in the coming week or so as the Zyrtec leaves my sytem. M 38 45 days
10mg 1X D
5/31/2010
 4  year round allergies Made me fall asleep I decided to take Zyrtec after i tired every other allergy medicine out there and none worked which wasn't too good for me living in the country and owning 4 dogs 3 cats 2 ducks a ferret and a rat (a small farm yes lol). I 'm taking the 24 hrs ones so i started taking my pill in the morning. Immediately i started to fell groggy and if i sat for too long i'd fall asleep which was weird for me because i find it extremely hard to sleep during the day. After a few days i started a strict schedule of waking up at 5-6am taking my pill and going back to sleep. I wake up a few hrs later feeling great and allergy free! If you are going to take Zyrtec make sure you have a definitely plan or else it will make you feel weird. Besides that i've had absolutely no problems. Make sure you figure out whats best for you though and not listen to all the scary things people say because every experience will be different. F 22 4 weeks
1X D
5/30/2010
 2   dizziness, restlessness, lethargy, drowsiness Zyrtec worked great at solving my allergies issues (including stuffy/itchy nose and dry eyes) however, the side effects have not been as kind. In the past two months, I've taken the pill two or three times a week right before I go to bed. While I sleep through the night, the next day I always feel dizzy and restless, as well as can barely keep my eyes open. This only happens after taking the medicine (otherwise I'm fine). the final straw with the meds, was my inability to keep my eyes open while on the road. Having an hour and a half commute home, I found it extremely hard to stay awake. This was scary because I have never had this issue before. I don't know if I would recommend this to anyone. M 23 2 months
1X D
5/27/2010
 1  indoor/outdoor allergies, asthma where to begin... basically, all of the side effects listed in this forum by everyone else; and, the problems began within a couple of hours of my first dose ... culminating with suicidal thoughts, raging and irrational anger (at everyone, for not one single reason), a fever of 104F, insatiable hunger (starvation mode, for sure), and freezing extremities while sweating profusely everywhere else ... and on and on I bought the CVS Pharmacy brand (and after checking with the Pharmacist that there aren't any side effects beyond the "possible drowsiness" listed on the packaging). He said none that he is aware of, and the product wouldn't interfere with my daily asthma medication. Well, it definitely interfere with my life, desire to live, and desire to be around anyone else; asleep at 8pm only to have disturbing dreams, heart palpitations, and a heaving chest for the next 12 hours. I finally connected the dots on Day 3 -- and stopped; then I had withdrawal symptoms for two days (the same ones others listed here in this forum) New, more comprehensive Warning information needed with this product. Please. I don't want one more person to experience 60 days of hell on Earth as I did ... followed by 48 hours of awful withdrawal symptoms. F 42 3 days
10mg 1X D
5/27/2010
 1  allergies My 4 year old son has minor alleriges so we decided to try children's Zyrtec. At first it worked to clear up his allergy symptoms that led to sinus infections, but after a while my husband and I noticed some negative side effects. My sewwt, lovable son became a nightmare. He was moody, wouldn't eat and very irritable. We had to stop for a while because of the recall and he was his normal self again. We started thinking it was because of the Zyrtec but dismissed it until he started on it again. He has been irritable again he didn't eat his lunch or dinner. We are DONE! F 31 5 months
1/2 tsp 1X D
5/27/2010
 1  seasonal allergies My son committed suicide because of this drug. He was 18 years old with seasonal allergies. He had tried Clariton before but didn't work too well. Heard about Zyrtec and decided to try it. Was on it for two months then committed suicide. We found out he had been depressed,became withdrawn, hearing voices, not sleeping well. Never took anything else, never had any problems mentally before. Was a straight A student, happy, had everything going for him. The only thing different in his life was taking the Zyrtec. I attribute Zyrtec to his suicide! Especially after reading all the negative comments from everyone else. F 53 2 months
10 mg 1X D
5/27/2010
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