Average Rating: 2.6 (414 Ratings)

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 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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More on CLARITIN-D 24 HOUR: Reviews Summary  |  Drug Safety Information

 1  Allergies Jittery, anxious, nervous, vivid day dreams, insomnia, chest tightness, and restlessness. Horrible. Never taking it again. F 38 1 days
1X D
 1  Extreme congestion. Extreme fatigue. Light headed. I had to leave work because i am so weak. It's been hours and I'm stuck in bed because I'm so exhausted. Horrible side effects. Also made me anxiety way worse. F 23 1 days
1X D
 1  Allergies At first it did what it was suppose to no side effects until I stopped taking it. It's been 72 hours since my last dose and still having extreme anxiety, with fast heart palpitations. Feeling Nervous and jittery, emotional and depressed. I believe I'm experiencing withdrawal from these medication. I feel hopeless If any can please tell me how long this will last I feel like I'm going crazy. F 38 12 days
12 hr 1X D
 3  Seasonal Allergies This product use to do wonders for my allergies, I don't know what happened but now I get bad heart palpitations, nausea, jitters, and chills. I took the pill at 8pm and woke up at midnight sweating and feeling super weird. Waiting it out now, hoping the side effects go away soon. F 33 1 days
1XD 1X D
 1  Allergy Horrible experience! I am very healthy and no other medications. Kept me awake all night, jittery, heart rate high, and felt sick to my stomach. NEVER again!! F 60 0 days
1X D
 1  Post nasal drip (sinus problems) Sweaty, clams, kind of a weak feeling, light headed M 72 3 days
10 1X W
 1  Eczema flare up Moderate anxiety, Dizzy / Light headed I took Claritin 24/hr an hour after I took it i started getting anxiety then 2/hr the dizziness set in, it's been 28.5 hours and I'm still dizzy/ light headed I will never take this medication again... EVER! F 41 1 days
10 1X D
 1  Allergic reaction to cat Heart racing out of my chest. Woke from sleep with heart racing. I will never take this medication again! F 41 1 days
1X D
 1  PN Drip, Ear fluid Lightheadedness, dizzy, night sweats, insomnia, heart palpatations Took a 24-hour pill at 9:30pm. Dumb move. When I went to bed two hours later I felt so lightheaded I couldn't fall asleep. Then, about 3am I had night sweats. Then had heart palpitations (very mild). Had anxiety all night about the symptoms. I'm still feeling a bit lightheaded, even though its been about 14 hours. A little dizzy if I move my head quickly. M 44 1 days
1X D
 1  Fluid build-up in ears Worst anxiety I have ever experienced, depression, tremors, upset stomach, tingling in arms and legs, raised blood-pressure, dizziness, heart-palpitations, fatigue, insomnia, dry-mouth, confusion, light-headedness, sweating spells. I was also taking Flonase at the same time, which I have had a negative reaction to in the past. This is probably adding to my symptoms as well. It has been 48 hours since I last took either medication and I am hoping the symptoms go away soon so that I can return to my normal self. M 27 3 days
240 MG 1X D
 1  Pollen allergies Insomnia, loss of appetite, Vaginal dryness, irritability, panic attacks, high blood pressure, depression I have always been a healthy female until I moved to a climate with heavy pollen in 2015. For the first 2 years on Claritin d I was fine and did not have side effects. In 2017, I began experiencing vaginal dryness and irritation ( free of STDs ,not perimenopausal, and no Vaginal infections) , panic attacks, irrational behavior and insomnia. This medication has caused serious damage to my marriage and work life. I never thought these were due to the med until I had every test ran that did not show any type of illness. My blood pressure spiked last year despite strong physical activity. I sought acupuncture for the stress and anxiety which provided marginal results. I have been off this med just over a day and pray that I will return to the healthy person I used to be. I have lost over a year of my life due to these debilitating symptoms. I am happy to share anything I can to help someone else that has struggled with this medication. F 44 4 years
30 mg
 1  Congestion, sneezing, itchy eyes Extremely anxious, jittery, shortness of breath, increased and decreased heart rate, awful constipation, lack of sleep. First 2 days were fine, now I feel all these side effects to an extreme, just waiting for this to ware off. F 21 5 days
 5  Asthma/Allergies None Excellent. F 48 1 days
 3  Severe nasal congestion Jittery, very fast heartbeat throughout the day, trouble swallowing, every time I stood up for a few seconds I got dizzy lost my sight and my ears would get very clogged all at the same time. Loss of appetite. It helped open my nasal passage about two hours after I took it. F 34 2 days
 3   0 days
 1  Congestion, running nose Headache, irritable, nausea, dry mouth, cant sleep This makes me feel like death! Please dont ever take this! WAY too strong. F 37 2 days
 1  Allergies Fatigue, severe constipation and nausea I have taken Clariton for years have recently started taking D. I can breathe better but thats about it. I haven't gone to the bathroom regularly since almost day 1. I'm miserable. I started looking up side effects today and found this website. Today was the last day I'm taking this. F 48 3 weeks
 1  Throat Allergy nervousness, restlessness, insomnia. dizziness, heart palpitations, headache, increased sweating, difficulty breathing, unusual paleness and weakness. I don't recommend anyone to take this medicine, Not worth trying it for any reason. I've lived the worst 7 days of my life due to this, I'm still dizzy! M 33 2 weeks
2X W
 1  Allergies INSOMNIA, DRY LIPS, NERVOUS, ANXIETY Will not use again considering I already have anxiety. M 28 1 days
 3  Seasonal allergies Claritin D 12 Hour made my hair fall out Claritin D 24 Hour gave me severe migraine F 42 1 months