Drug Ratings for CLARITIN

Average Rating: 2.0 (836 Ratings)

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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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    Charts & graphs: Reviews Summary for CLARITIN  | Top 10 Adverse Effects (reported to FDA)

RATING  REASONSIDE EFFECTS FOR CLARITINCOMMENTSSEXAGEDURATION/
DOSAGE
DATE ADDED
sort down sort up F  M  
 3  Post nasal drip Insomnia & anxiety F 26 1 days
11/10/2014

 1  it made me feel awake and energized I had been taking claritin D for a long time because i noticed that it would make me feel awake & energized. I read online that it was safe and not addictive so when I needed to get something done or was tired in the morning I would take it. Not until last week after days of not taking it I experienced an INTENSE anxiety attack my heart was racing i couldn't get it to slow down. I have always woken up tired in the morning but for the past 5 days now I have woken up with a racing heart WIDE awake. During these past few days I have experienced extreme anxiety, it feels like my brain is on fire, pressure in the back of my head, jitteryness, sweating hands & feet and increased heart rate. It's day 6, i haven't taken it for over a week and I'm still experiencing these side effects. I will never take this drug again. I'm praying everyday that I will return to normal. This has been the scariest experience of my life. AVOID THIS DRUG COMPLETELY. It's not worth the risks of the side effects. F 23 1 years
1X D
10/31/2014

 1  Allergies Anxiety, HUGE acceleration in heart rate & BP..for 5 days straight, numbness in arms & legs (like limbs were weighted down), numbness in face, blurred vision in one eye, SEVERE insomnia even 9 days off of it, weakness & inability to use right hand well for a week, chest pain, so weak getting to the bathroom even. This med took TEN days to get out of my system. Scariest experience of my life. I am sensitive to meds but not a drama queen ...user beware. If you have any heart issues- STAY AWAKE. F 40 1 days
5 mg
10/29/2014
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 1  Allergy Increasing dizziness, lack of concentration, racing heart, eventually difficulty in walking and. Driving thought having heart attack. Dr thought vertigo. Once stopped symptoms cleared after several days. Was taking in morning F 64 3 months
24 hr
10/29/2014

 1  Ear/Sinus Inflammation Allergies My pulse was 90-100 for days. It's always 60. F 40
10 mg 1X D
10/25/2014
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History
 3  sinus isues altered taste Took this for a month noticed altered taste the first time but was also very sick with bronchitis and did not attribute it to the claritin. Was off it for a while and restarted it for fall seasonal allergy issues and noticed the altered taste again on the first day. It does not help me as much as Zyrtec did but it also doesnt make me tired like Zyrtec did so it is a compromise. It reduces my symptoms but does not aleviate them. F 37 1 months
10 mg 1X D
10/15/2014
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 4  sinisus Mild drowsy M 49 1 weeks
10mg
10/11/2014

 1  Allergies Only took for two days and now it's Hell on earth! Waking every hour covered in sweat, muscle weakness can hardly walk, nausea, tremors constant even while sleeping. Hot flashes and heavy sweating. I want this drug out of my system but it keeps lingering. Last dose was two nights ago and still have effects this morning. What a monster of a pill. Avoid avoid please. I am suffering as I type. I have not been off the couch in 3 days now. Tremors, sweating, went to ER and they told me to drink water and cranberry juice and couldn't give me anything else cause I had antihistamine in me it could further react. My husband has had to take off work two days because I can't function. I will never take anything like this pill again. I just need this to stop. The effects go on long after your last dose BEWARE ! F 41 2 days
10 1X D
10/1/2014

 1  Seasonal allergies I was just detoxing myself from birth control, didn't think anything of taking this for fall allergies. Boy was I wrong! I was up all night sweating, shaking, major anxiety attack! Still the next morning I could not take my son to school. Shaking nausea, I think this stuff has some hormonal effect. I am having reaction of estrogen dominance again! Horrible stuff! Please avoid at all cost! F 42 2 days
20 1X D
9/29/2014

 1  Fall allergies Insomnia, anxiety, heart beat irregular, feel nervous, dizzy but can't sleep I feel like I have been poisoned. Up all night soaked in sweat. I wish I would have read reviews before taking this monster! So nervous can't work or drive. This stuff should be off the shelves! F 40 2 days
20 1X D
9/29/2014

 1  Fluid in Ear One dose can totally wreck you life!!! OMG this stuff is DANGEROUS! I took the pill last night and 18 hrs later, still feel like a drank a pot of black coffee along with 3 shots of vodka. Every muscle in my body is twitching, my heart is racing, since an hour after I took this pill. I thought it would wear off by now, but NO!! Don't even take ONE PILL! I am a healthy adult. Work out 4-5 days a week, and this stuff makes me feel fatigued, muscle weakness, can hardly walk, and my heart is pounding. If tomorrow continues, I will go to Urgent Care. This stuff is so dangerous please stay away from it!!!!! F 42 2 days
10 1X D
9/29/2014

 1  allergies Racing heart. CAnt sleep or relax. Feels like I drank 5 cups coffee. Anxiety. Nervous. Dry mouth.i wish I never took it. Even a day after it is intense. F 42 2 days
20
9/29/2014

 1  seasonal allergies Irritation frequently turning to anger, nightmares, tiredness, disconnected feeling. I was concerned about my constant anger. This is totally unlike me; I'm usually very calm and easygoing. Difficulty falling asleep, and vivid nightmares. I didn't connect it to the Claritin at first. After 2 days off of it, I'm starting to feel like my old self. Apologizing to family for my mean nasty behavior. This was frightening. I will never take it again. F 57 2 weeks
10 1X D
9/14/2014

 1  allergys Severe painfull watery stools! Anxiety, Numbness, Extremely quick to Anger Insomnia or Extremely Tired. Loss of Concentration. This drug is dangerous !! Dry Mouth , Tight Throat & spasms in my back . I was fine the first 2 days, Then the side effects kicked in & I felt like i was going nuts. F 43 5 days
10mg 1X D
9/9/2014
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 1  Post Nasal Drip it took about 3 days to get into my system but it was great, no more post nasal drip, no more of the mucus in back of my throat. then yesterday on the 5th day i noticed my head was itching severly to the point i thought i had something wrong, when i had my mom look in my head, she noticed red dots then noticed red dots on my back, abdomen, one of my leg and few on my chest. i didn't connect the reaction i was having to claritin till reading all these posts. i believe i am having a reaction. i took one this am, but today will be the last day i take this medicine. oh i did notice heart palpitations as well on the 5th day. F 42 6 days
D otc 1X D
9/5/2014

 4  sinus& hives Tiredness M 55 2 days
8/6/2014

 1  Sinus Shortness of breath, joint pain, chest pressure From my experience and what I have read, this medicine should be banned M 40 1 days
10 mg 1X D
7/21/2014

 1  Year round allergies Extreme hunger (starving all the time even after eating a huge meal) and weight gain. 50 pounds in under 6 months. Extreme personality changes (not for the better). Stopped it 5 days ago. Hope I feel better soon. I've had sever panic attacks also. F 33 3 years
10mg
7/17/2014
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 1  Allergies This is a very dangerous drug.It caused me to feel extremely depressed, paranoid, anxious, suicidal, angry, irritable, moody, lash out at others, etc. etc. etc. I need to talk to others to do a law suit because I believe it has altered my whole life. Someone please let me know of how we can do a class action law suit. F 61 10 years
6/30/2014
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 1  Seasonal Allergies My son seemed fine at first and it did help with his allergies. On the 2nd day I noticed that he became upset very easy and more so than normal. When he got angry he would lash out physically. At bedtime he would not go to sleep. M 5 3 days
1X D
6/20/2014

 4  hives seems to help me from being hungry. other than that, only antihistamine that doesn't make me drowsy like zyrtec or hydroxyzine, or have severe anxiety - allegra. love it. it's funny, but i think have the people that post on medications way weight gain is a problem, however, i'm thinking most of them want something to blame the weight gain on besides themselves. yes, some meds do cause weight gain, but a lot of posts are a way for people to blame something besides themselves F 43 1 years
10 1X D
6/3/2014
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 1  Seasonal allergies Anxious,depressed,insomnia,nightmares,scrambled brain,quick temper,loss of appetite,paranoia,restlessness,no interest in anything. Had a reaction to 3 days on Paxil years ago so when I woke up in the night having same reaction I knew it was drugs and Claritin was the culprit. Can not believe the horrible month I had. Would never have thought something bought off the shelf could be so devastating. Been off it 10 days. Still can't sleep. Wondering if I'll ever get back to normal. Class action lawsuit? Let me know. F 61 30 days
10 1X D
6/1/2014
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 1  severe itchy eyes and eyelids The Claritin D made my eye irritation somewhat better but it still itches. I have been waking my gave and using a face scrub per normal as in the past. This year 2014 I took Claritin for the first time and my eyes all around it had become much later that night itchy. When I woke up I saw white blotches on both eyelids. Then as I was on my 5th pill which is 24 pills..my eyes blotchiness became bigger and nore noticeable. This medicine is giving me white blotches and i have a caramel completion. I think I need a lawyer. F 38 7 days
5/29/2014
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 3  Seasonal Allergies I have NO ENERGY whatsoever almost all day like even my muscles are so weak I don't want to move. Like I'm on a muscle relaxant. I am so tired and yet my mind is wide awake. I can't think properly, can't type well and couldn't even finish a sentence when I was on the phone with my mom earlier. To me it just makes me very lethargic and sleepy but unable to sleep. F 24 2 days
10mg/240mg
5/22/2014
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 4  Allergic Pruritus Blurred vision in one eye / scintillating scotoma Possible post menopausal bleeding Restless legs Broken sleep Dry mouth Feeling "detached" I found Claritin extremely useful for pruritus. However, after several days of use I began to experience post menopausal spotting (a listed side effect is "menstrual irregularities and heavy bleeding"). I would also wake up in the mornings with blurred vision in one eye and on a couple of occasions I experienced scintillating scotoma (a form of migraine). I could tolerate some of the side effects as a pay off for relief from the itching, however the blurred vision and bleeding were not acceptable. F 58
1X D
5/21/2014
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 2  Allergies This caused me extreme irregular heartbeats. Sometimes I'd feel fine then my chest would hurt and my heart rate would sky rocket. I could feel my heart pounding. I thought I was having a heart attack. Only took it two days and although it helped relieve my sore throat from allergies it caused me way too many problems with irregular heartbeat. This is a dangerous drug. F 21 2 days
240mg
5/21/2014

 2  hay fever Started getting really bad leg cramps especially in the knee, thight and toe area. Also, lower back pain. Didnt do much for allergies. I was still sneezing, had runny nose F 23 1 months
10mg
5/15/2014

 2  Seasonal Allergies Dry mouth, sporadic sleep, total loss of libido >_< Dafuq? Nothing makes me feel less like a man than not being able to pop a woody... even during sleep. Also the mouth thing... makes it feel like I'm constantly smoking a joint (which is excruciatingly rare for me, maybe once a year.. if that) Totally not worth the side effects. Dry mouth I could probably deal with... same for the sleep. But the other one... No. Hell no. Not cool. I can deal with the congestion and the headaches just fine. Thanks for the 10-day trial run Claritin-D... but I just can't M 24 1 days
1pilldaily
5/8/2014

 1  severe allergies with nasal, throat Horrible!! Will never take it again. The psuedoephedrine gave me extreme anxiety...making me feel like I could not breath. Been up for 2 days!!! Never again! F 43 3 days
240mg
5/6/2014

 1  seasonal allerigies Right after first taking it had nightmares. Nausea and joint stiffness and swelling. When pollen got severe the medicine didnt even help. F 39 2 months
10 1X D
5/6/2014

 1  Sinus Infection Took at night. woke up and couldn't move my arm, legs, took every thing I had to get off my bed. Then I could not lift my feet to walk. Holding on I made my way around my bed. Didn't think I could make it to the bathroom.....once I got to the hall way, I tried to yell for my daughter....and I had no control over my mouth. Scariest Dam thing that ever happened to me. Doctor who told me to use this, wont see me anymore. Hospital said I must of had a bad reaction to it. GO FIGURE!!!! after 2 weeks of lifelessness, home sick from work, feeling like Im dying, I went into withdrawl.....I shook for 2 days straight.....every doctor I called....sat on the other end of the line....silent....I was on my own.....but they sure wanted to jack up my medical cost with all kinds of test, which were a waste, and torcher. Claritin, the worst drug. CDC, FDA, FDA.....all are BS......our country is about the rich getting richer and the average joe can just die. F 56 1 days
1 1X D
5/2/2014
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 1  Allergies/SinusPressure/RunnyNose About a month ago my allergies were so bad that I called in sick from work. I eventually broke down and took Claritin D 24 hour after trying Mucinex and not getting any relief. Well, the Claritin worked to relieve my allergy symptoms and I didnt notice any extreme side effects. HOWEVER, just yesterday I started feeling my allergies kick back in again so i took Claritin 24 hour /10mg before going to work. I have been experiencing the worst anxiety/paranoia that I have ever had with just that 1 dose! I can't look coworkers in the eye and feel extremely nervous having normal conversations with them. It honestly feels like I am cracked out on speed! it's horrible. Never again will I take this medicine; its simply not worth the nervous system roller coaster that it has out me on Pseudoephedrine is the devil !!! M 32 1 days
10 MG 1X D
5/2/2014
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 2  No reason. severe insomnia, loss of appetite, hardly using the rest room, stiffness of the legs and lower back. F 14 2 days
10 MG 2X D
4/30/2014

 1  Allergies Terrible chest cold like symptom. Burning coughing and headache. Scarred of this medicine. It feels like I have a chest infection. I took the medicine yesterday morning. M 57 1 days
10
4/25/2014
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 1  YEAR LONG ALLERGIES! Okay for me taking it...well its doesn't work. I still have a STUFFY nose that i can't get rid of and it last year long. but both my girls were just prescribed to it about a month and half ago and it actually has helped them with their allergies..my youngest was getting sick often but she's doing pretty good in that department. but my main worry is her complete attitude change. and its only at home or my grandmas well anywhere that it is just us family. She does fine at school with grades and her attention hasn't changed or anything there...sweet as can be at friends house. polite...respectful. But when she is with me she misbehaves to an extreme. Its not all the time but when she does its bad. Screams...yells...hits...doesn't listen. won't do things that are asked of her. It started happening over the last month. Over the first week i thought okay she's acting out you know its a phase but it has continued and has gotten worse to the point i'm in tears when she acts out. So i talked to F 29 1.5 years
10 1X D
4/24/2014
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 2  Allergies I started having extreme paranoia after two days of taking Claritin. I also broke out with blackheads all over my chest and back, and my lips started to peel really bad. I felt like something was seriously wrong. I was surprised since this was otc, and I don't take any other medications. It's relatively expensive for allergy medicine, and I don't want to waste it, but I won't be taking any more of this drug that has caused these concerning side effects for me. M 24 2 days
10 1X D
4/21/2014

 1  Allergies It gave me erectile dysfunchion at first i didnt know what or why then i put it together i switch between claritin and allegra from time to time and notice i was having sex and my penis went soft while we were doing it and i could never get it back up it was when i was taking claritin i been off for 5 days now and my penis gets rock hard again i will never take it again i also came when my penis was soft and other times i couldnt come scarry stuff but good news is about 5 days after taking it im back to normal M 47 2 weeks
10 MG
4/20/2014
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 1  viral respiratory symptoms Caused blurry vision in one eye F 32 6 days
10mg
4/13/2014

 1  allergies Horrible anxiety depression and hallucinations M 29 1 days
10
4/10/2014

 1  congestion Could not control my right leg This drug is dangerous!!! F 43 1 days
1X D
4/10/2014
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 2  Allergies Child had extreme anxiety on this medicine. Helps with allergies but side effects horrible; he was scared of his own body. He had similar issues with Singular. M 7 1 days
1 tab
4/6/2014

 1  Allergies / sinusitis Insomnia, anxiety, nervousness, restlessness I tried generic Claritin (loratadine) because Zyrtec makes me depressed and irritable. I started with a very small dose (2.5 mg) of loratadine before bed because I'm very sensitive to medication. I fell asleep okay, but then woke at 1:00 AM with anxiety all over my body. I had such anxiety that I could not get back to sleep for the rest of the night due to the physiological anxiety response in my chest, arms, and legs. That was my first and last dose of loratadine... never again. F 44 1 days
2.5 mg 1X D
4/1/2014
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 2  For allergies. For two years have been diagnose with severe anxiety. It has never improved, except during certain times of the year. When ? When I was not taking Loratidine. Severe anxiety, déjà vu and vivid nightmares. Trouble breathing, quite short of breath, night sweats, severe distraction, muscle aches in my back and loss of appetite. Made the connection after realizing that every time I took it I got bloated, and soon after felt fatigue. I stopped it for 2 days and the difference was inmense. Am hoping that I can get it out of my system and then get rid of my anxiety meds. M 37 3 years
10
3/16/2014

 1  Postnasal drop I began this medicine I am in college and started to feel foggy didn't think anything of it. Then eating at a restaurant my heart started pounding. My left side went numb and then I got a migraine. I thought I was having a brain aneurysm. Went to ER got a cat scan it was normal. Went home kept taking the drug then each time I ate I would have palpitations. Not to mention the vivid night terrors. I would rather love with this nSal drip than ever take this. I hope I recover I have stoped the drug for two days and still am having palpitations. This drug is not good. F 23 2 weeks
10
3/15/2014
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 1  For seasonal allergies Started having persistent, moderate joint and tendon pain over every single joint in my body. I was taking an off brand loratidine, the same active Claritin ingredient. Also dry mouth, mood swings, and chest pain. F 42 9 days
10mg daily
3/9/2014

 3  Chronic allergies I feel completely out of it- like I am in a dream constantly! My memory is terrible. I have more anxiety, and extremely vivid dreams and deja vu. My symptoms were so bad I had an MRI of my head to rule out tumor, ect. I also have weird sensations of buzzing in my limbs. All of this was non existent before I started this medication. It works great for allergies. I do not sneeze, have itchy watery eyes, or have dizziness which is common with my allergies (I am a year round allergy sufferer). I will have to deal with the side effects because nothing else works for me. F 24 3 months
10 mg 1X D
2/11/2014
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 1  Allergies/Sinuses/Post Nasal Drip I took this medication once over 2 years ago, before bed. That night I woke up having a severe panic attack. I had to wake my husband and up because I didn't know what was happening to me. I then assumed it must've been the claritan, because I have never had a panic attack before. Ok, so I tried to take this medicine last night, and I was completely restless, with a irregular heartbeat. (Seemed extremely fast) sweaty palms and feet, face flushed- again the feeling of a panic attack. All night my chest felt heavy and I felt short of breath. This carried on into the next day. I almost went to the ER because the symptoms were so frustrating. (Including swelling lymph glands in my neck) Then I remembered my previous experience. NEVER AGAIN! This drug is the devil! F 31 1 days
10 MG
2/2/2014
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 5   Na M 33 10 years
12/20/2013
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 1  Seasonal allergies Seizures, irritability, insomnia No previous history of seizures M 47 6 months
10mg 1X D
12/7/2013
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 1  Allergies My son was well adjusted, good in school, plays soccer, Karate, two musical instruments and loved to read. After 5 days of Claritin 24hr at night before bed, he had severe mood swings, hyper activity and what he described as bad thoughts. We stopped the medicine immediately. The symptoms continued to worsen two days after, finally producing a facial tic where he can't control his blinking and has an eye-roll. he was crying for no reason in the morning with sleepiness and then unable to sit down in the evening. The emergency room doctor pinpointed it as the Loaratadine in the Claritin affecting his central nervous system, stating that he's had parents threaten him if he ever prescribed the drug to their child again. It's been 11 days since his last dose. The eye-blinking/rolling continues and his Teacher said he puts his head down on his desk allot and plays with his fingers. He is complaining about School, saying that he feels invisible to his friends. He is moody and his little bro It should be removed from the market and controlled as a poison. M 9 5 days
10 1X D
10/14/2013
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 1  Allergies Heart palpitations, severe headache, constant anxiety, panic attacks, vivid nightmares F 28 1 days
1xD
9/30/2013

 2  allergies erectile disfunction M 55 1 times
1X AN
8/29/2013
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 1  Seasonal allergies Stomach pain, gas, belching, insomnia, nightmares Have taken other antihistamines for years without incident. I am now on my fourth day after taking one dose. Gastric distress subsiding but still present. Insomnia is bad. Felt exhausted last night but was unable to fall asleep for 4.5 hours. Racing thoughts and nightmares, very unusual for me. Took klonopin .25 mg and got rest, although I am not sure that I slept at all. M 66 1 days
10 mg 1X D
8/16/2013

 1  Allergies to pet hair Years ago I used it once and loved it. A month ago I used it and within minutes had paranoia, shakes, nausea and high anxiety. Thought symptoms were because I didn't eat when I took the pill. Slept off side effects with a nightmare and woke feeling weird for the rest of the day. Took a pill yesterday and jjust woke up from a horribly vivid nightmare because I had a very bad throbbing pain in the back of my head and I never ever get headaches. Luckily hanging head upside down for a few seconds helped the pain stop. Now I googled the pain and the word Claritin and will not take it again. Last time when I had the nausea I explained to everyone I felt like I was tripping out and felt overwhelmed with fear and paranoia now I know why. Buyer beware it worked to prevent my regular wheezing, hives and itchy eyes well but the side effects are extreme. F 28 1 days
1-12hrpill
8/6/2013

 1  Seasonal allergies I get a terrible itchy nose as well as itchy eyes, so I've been taking an offbrand loratadine and while it does the trick for my itches, it gives me horrible headaches and and makes my sinuses ache worse than I've ever felt. I'd rather endure the incessant itching than the the ridiculous and unnecessary pain. F 19 10 days
10mg 1X D
7/29/2013
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 1  (Hayfever) Allergies Insomnia after taking Claritin for about 4 days. I was able to go to sleep but would sleep lightly and then wake up with extreme anxiety which degenerated to panic attacks that would continue for hours. After a couple of weeks, I became sleep deprived with continuous anxiety. I was prescribed meds for anxiety by my doctor because we didn't make the connection to Claritin. The antianxiety meds didn't really solve the problem and I became listless and forgetful. When I finally quit taking the Claritin, I began to be more rested after about 10 days. When I had another allergy attack, I started Claritin again and within a week had insomnia and panic attacks. I realized the Claritin was causing the problems, so now I stay far away from it. I did do ONE more test and after just 3 does (3 nights), the insomnia started up again. The connection between the insomnia and Claritin was aided by information from my mother. She cannot take oral Benadryl or Psuedophed because they both cause insomnia for her, as does Claritin. I have no problem with pseudophedine and Benedryl makes me slightly sleepy. F 44
10mg 1X D
7/25/2013

 1  Seasonal Allergies Heart Palpitations, Nasal Drip, Soar Sinus, Itchy and watery Eyes. The reaction I experienced was a thousand times worse than the Allergy symptoms i was taking it to treat. Following taking this medication Tuesday Night, my heart starting racing like crazy and no matter what i did i could not slow it down. That lasted approx 30-45 Minutes, over the night i ended up developing an extremly backed up synus i kept waking up blowing my nose, or chocking if my head tilted back, Today is the day after, about 18 hours since i toke the medication I feel like my body is just shutting down, a million times worse than my initial allergy symptoms ... Eyes burning nose running throat itching it just wont stop, we will see how long this lasts now, but i am for sure not taking a second dose of that stuff. F 22 1 days
10 MG 1X D
7/17/2013
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 1  allergies Feeling very faint and lightheaded,short of breath,pain in knees and very thirsty. Also very sore eyes. F 55 10 days
10mg
7/16/2013

 1  environmental allergies One and only dose equaled 10 hrs of lucid nightmares! Never again. F 42 1 days
10 mg
6/26/2013

 3  inhalent allergies Painful feeling in left side. Finally had horrible, horrible, urgent diarrhea and gas several days after the pain started. Finally realized that symptoms started at same time I started taking loratadine. Bloated abdoment, painful to move or bend. was using generic/store brand loratadine. F 43 7 days
10mg 1X D
6/21/2013
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