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
 
 1  Allergies, dust mold mites dander Zyrtec did not produce drowsiness for me. Also was ineffective at controlling symptoms of pollen, dust, mold or dander allergy. ineffective F 6 months
10 1X D
6/16/2015
 2  runny nose and cough Made me so drowsy that it felt as if I was under anesthesia or about to pass out. During the day on the weekend, I would fall asleep and have bad dreams. Am so tired and dizzy during the day that I can't get anything done. Also caused painful headaches, agitation, irritability, and low mood. It is labeled as non-drowsy but it must cross the blood brain barrier because of the drowsiness and mood changes it caused. F 37 2 weeks
5 1X D
6/15/2015
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 1  Seasonal allergies My son took this for four days and instantly started having trouble sleeping ( started sleep walking, opening doors) he even said he hated his life and got aggregated while trying to get him back to bed .... This drug should not be used as a OTC!!!!! M 9 4 days
10MG
6/5/2015
 3  seasonal allergies Extremely dry skin all over especially on face ..flaky eyebrows and dry Cracks around my eyes and mouth....even dry.using vasceline on my face. Severe rash and itching on hands and wrists. My skin and body dry everywhere. F 56 4 months
10mg
6/4/2015
 1  Allergies SEVERE ankle and leg swelling - EXTREMELY painful. Was cranky and could not sleep very well. I do believe that I may also have RA, so this could be a factor. Stopped taking medicine on Saturday, and as of Thursday, most of the swelling is gone. What an AWFUL experience this was until I figured out what was causing it. F 45 45 days
10 mg 1X D
5/28/2015
 1  allergies horrible anxiety and irritability I have worked in the mental health field for 23 years and now understand what my clients experience. Took a zyrtec and it sent me into a 48 hour funk that scared my wife and my kids. Thank god it was a long weekend or I would have had to call in sick on Monday. I thank my training and experience for totally not freaking out. I knew something was very wrong and that I needed to be alone so I would not act out against the people I love. Horrible drug that could lead to some very bad actions by the people who take it. Would much rather have allergies. M 46 1 days
1X D
5/26/2015
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 1  Seasonal Allergies Nausea, joint paint (especially hips and shoulders), extreme irritability, crippling fatigue, cannot concentrate, terrible ADD symptoms, brain fog, cannot get out of bed, anger/rage, deep depression, heart palpitations, horrendous weight gain, soul-less feeling, zero interest in life. I began taking Zyrtec in March to battle seasonal allergies and did not realize until today all the horrible side effects I have been experiencing are from this pill! I take 1 Zyrtec at night, right before bed due to the extreme drowsiness it causes if I take it during the day. I am a certified nutritionist and adhere to an extremely regimented diet and exercise plan. I have a ton of self control when it comes to diet and exercise and typically maintain a weight of 115 lbs. Over the last 2 months I have gained 10+lbs without a single change to my routine. Over the last 2 months my weight has been slowly creeping up. So I have increased my cardio and reduced my calories even farther and my weight will not budge! I cannot even fit into my pants anymore! I was so desperate for answers that I thought I may have a thyroid disorder. Over the last week I have been racking my brain trying to figure out what is wrong, but now it all makes sense. Zyrtec really helped my allergy symptoms however it will ruin your life! Update: Stopped taking Zyrtec cold turkey. Day 1: terrible splitting headache and nausea with frequent urination. Day 2: Very bad nausea and vomiting, stomach upset, blurred vision, spacey feeling, itching. Feels as if you are coming off some crazy narcotic!!! This stuff should be taken off the market. F 32 2.5 months
10mg 1X D
5/23/2015
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History
 1  Seasonal allergies My 10 year old son. Has been having uncontrollable anger outburst. Also crying easily. I have been doing research to find a cause and help for my son. After reading this I am stopping Zyrtec TODAY notifying his MD. By the other post it seems zyrtec could very possibly be the cause. M 10 5 years
10 mg
5/14/2015
 1  over active histamine response Anger. Unreasonable, aggressive and uncooperative behavior My 15y/o son started taking 24 hr Allegra prescribed by his pediatrician for an over active histamine response causing periods of extreme itching especially after showering. He took it for over a year without a problem and it worked well. The pediatrician suggested seeing an allergist who suggested switching to 24 hr Cetirizine, which is generic Zyrtec. My now 16y/o started taking 24 hr Cetirizine in Feb 2015. We saw an unbelievable change in his personality with escalating anger and finally rage. He was frightening, distructive and uncontrollable. After discussion with healthcare providers we discovered the change in his behavior coincided with starting Cetirizine. We stopped the 24 hr Ceterizine and restarted the 24 hr Allegra immediately. Within a day we saw his behavior retuning to baseline, which is typical teen behavior but the without the extreme anger and volitility. We did not tell my son why we were changing the medication but he was in favor of the change because he felt he did not get adequate symptom relief from the 24 hr Cetirizine. Our family is still recovering from our two month ordeal. Stay away from Cetirizine. M 16 2 months
10mg 1X D
5/14/2015
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 1  seaonal allergies Worked at first my 10 month old son slept better and helped his allergy symptoms but after 1 month terrible nightmares all night long, extremely clingy and very emotional all the time. Fits of rage and bad mood swings.Loss of appetite, irritation of his throat. Stopped taking it and it took 5 days for my son to be normal again. DO NOT USE ZYRTEC IT IS TORTURE FOR YOUR INFANT/TODDLER It should be taking off the market. F 2 months
2 ML/daily
5/13/2015
 1  Hayfever I have had Hayfever for many Years, most drugs do not seem to work for me, with the exception of this drug, its side effects are severe though, however, from my experiences, I would recommend that it be banned and certainly not sold over the counter, within hours of taking this drug, I become extremely aggressive, with paranoia, I struggle to keep awake, my personality changes, becoming very depressed, the mental side is severe, it also seems to lower my testosterone levels and I become bloated and my blood pressure goes up. I used to think I was suffering from a seasonal mood disorder, but now realise it is this drug, it can cure hayfever in 15 minutes, but the side effects are extremely severe. There should be studies into this drug, particularly around violence, suicides and accidents. Take this under extreme caution and only if you really have no other choice. Very bad mental side effects, I have never done any drugs or have any other issues, but this drug, makes me psychotic. M 47 4 weeks
10 1X D
5/12/2015
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 1  Runny nose, itchy watery eyes Good Grief....I took a Zyrtec 8:00pm last night and I couldn't get out of bed this morning for work. If I didn't know better I thought I mistakenly taken an ambien. I woke up like I was drunk or drugged. My equilibrium was off. It's now 9:45am and I can't keep my eyes open. Concentration is off. Nodding off. I still have the runny nose and watery eyes. I will NEVER take this medication again. I'll stick with Claritin or Benedryl. F 49 1 days
10mg 1X D
5/4/2015
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 1  Allergies 9 yr old son took Zyrtec and now it takes up to 2 hours to awake him. When we try to awake him he fights (throws punches and kicks) all while he is still asleep. M 9 2 days
5 MG
5/1/2015
 1  Seasonal allergies If only I read this before taking this medication! I just googled Zyrtec and bad dreams and immediately I found this page , apparently I'm not just going through stuff in my day to day life ! This medication has put me on a roller coaster ride that I am now getting off! From fatigue ,restlessness ,waking up every hour ,bad dreams ,anxiety, weakness ,crazy dry eyes ,always thirsty ,stomach problems ,mood swings crankiness , short temper, blurred vision, lack of interest in anything ! Back to safe all Benadryl and here I thought that (Benadryl ) drowsiness was bad. Wow how wrong could one be nothing compared to this ! And yet with all the side affects eyes still itchy nose still running sneezing still their why in the heck was I still taking this garbage one only asks themselves! Beware ! I do not recommend anyone to take this, it will flip your life upside down !thank goodness I only bought the Walmart brand for 13$ F 34 7 days
10mg 1X D
5/1/2015
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 1  seasonal allergies I took Zyrtec for just about two weeks. As each day passed, a new side effect would arrive. The first thing I noticed was very vivid dreams... nothing scary or violent, but I never remembered my dreams before taking this medicine. Next, fatigue, irritability, drowsiness and I felt shaky and weak at times. I felt like I gained weight instantly. I was hungry all day long, to the point where I always carried around something small to eat because I was actually anxious and afraid of passing out. Finally, after about 10 days, severe anxiety and feelings of hopelessness and early signs of depression. I've never been a depressed person, but this medicine made me feel awful. It's been 36 hours since I've taken my last dose of Zyrtec. I don't feel completely better yet, but definitely better than I did. I usually do my research before I take any medications, and I'm very disappointed in myself for not doing that with Zyrtec. I had no idea a simple OTC allergy medication could make me feel so awful. I've used Allegra in the past and I never had any of these issues. The only reason I switched to Zyrtec was because a doctor at the local walk-in recommended it over Allegra and Claritin. After this experience, I probably won't ever take an allergy medication again. I would rather just deal with the runny nose, itchy eyes and sneezing. I'm hoping this Zyrtec gets out of my system soon. It's an overall terrible product. I would rate it a 0 if that was an option. M 22 2 weeks
10mg 1X D
4/27/2015
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 1  chronic urticaria I was taking fexofenadine but my consultant recommended citirizine. After only 3 days my feet swelled so much that I could not walk. My skin stretched so tight, became bruised and turned red and purple. My urticaria turned into huge blood spots and the itch became more intense. I cried from the pain in my feet for the 3 days I was on this medication. I stopped using this on day 4. The swelling receded but left severe bruising all over my body. I regret taking it. Please be careful. This is dangerous medication. F 37 3 days
30mg
4/26/2015
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 3  seasonal allergies Although Zyrtec works great for seasonal allergies, after about a month of daily use both my husband and myself have experienced swollen joints, especially in our hands and feet. We stop taking Zyrtec and the swollen joints have subsided. F 42 2 months
10 mg
4/19/2015
 3  Seasonal allergies It works well for my itchy nose but made my stomach hurt and I have body aches and feel very tired. F 53 1 days
10 mg
4/18/2015
 2  Seasonal allergies Really bad stomach pain, almost immediate weight gain I think Zyrtec slightly alleviated my allergy symptoms, but it's not worth the side effects. How can one gain weight that quickly..!! It also really upset my stomach. Rather take Benadryl gel caps. F 40 3 days
10mg
4/8/2015
 1  seasonal allergies body pain dizzines Weight GAIN anger issues i was a model since the age of 16. i had a horrible allergies that i had to take zyrtec 10mg to treat. i started gaining weight from no where! and zyrtec was the only medication i was taking. and finally i decided to search about this med and i found out that every single negative symptom i had\have is because of this sh** med!!!! never ever taking it again! gained 40lb in 2 years had a serious anger issues F 19 2 years
10mg
4/8/2015
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