Drug Ratings for CLARITIN

Average Rating: 2.0 (799 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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    New! 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  
 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
Email
 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
Email
 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
Email
 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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 1  For hayfever With these new pills that melt in your mouth I started feeling sick and having stomach pains. M 24 7 days
10mg
6/21/2013

 1  Allergies Anxiety, hypothesia in face,arms, legs,tinnitus, depression, confusion, amnesia type effects, fatigue, headache. Literally thought I was going to die, had ct scan of head and then saw neurologist all for what they thought were neurological symptoms, they decided it was anxiety, neurologist thought Claritin may have been cause or contributed to symptoms, never had anxiety before but this has taken a long time to go away, at time never contributed it to the Claritin as seems to happen so subtly. Looking back over the years I have taken this off and on not for the same length of time and it seems even when taken for a few days it coincided with small bouts of depression. This last time was the worst by far, this is criminal having medications like this available for general sale. M 40 2 months
10 1X D
6/10/2013

 1  Claritin Pain in the joints,urinary problems,Moderat insomnia,shortness of breath,rapid heart beat,anxiety attacks,inabilaty to focus, loss off appetite,weight loss,dry skin, headaches, nausea,day and night sweats, dizziness, agiation, Took clairitan 30 days. I knew the known side affects. most simtems apeard after I quit taking the medication. Tey where so bad that went to the emergence room.. M 54 30 days
10MG 1X D
6/4/2013
Email
 1  allergies anxiety, panic attacks, could not breath, gasping for air, nightmares, heart palpitations, depression, crying. This was prescribed by my doctor. This drug should be taken off store shelves and not advertised like its candy. Dangerous stuff. I thought I was going crazy. Thank God I found this site. It took about 4 or 5 days off the drug to start feeling better. I felt I had withdrawls from this drug. NASTY, NASTY, DRUG...... F 53 1 months
10mg 1X D
5/27/2013
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 1  Allergies Anger 2 bouts with bronchitis occasional wheezing crying needy scared AND MOST TERRIFYING a hallucination of a boy beside his bed which led to more fear than I have ever seen in a child. I thought his fearful changes came from watching too many shows for older children but finding this website has me sure it is his medicine. His allergies are under control but my happy dancing boy has turned into a fearful crying boy that is angry, scared and hits others and himself!!!! No longer will he take this drug. I'm praying away any problems the hallucination has caused him and any withdrawals that could come from stopping this medicine. M 4 6 months
7.5 mg
5/26/2013

 1  allergies Pounding heart, internal jittery feeling, anxious, confused, dizzy, headache I took one 5mg grape chewable kid version thinking that I could easily double if I needed to. Went to bed. Asked hubby if the load in the washer sounded uneven, and he said the washer wasn't ON. It was my heart pounding & my body shaking! Finally got to sleep, awoke the next day & felt like I was on speed. 24 hrs after taking the dose, I was dizzy & lightheaded with a headache. And I don't get headaches, have anxiety, or any other issues except allergies, which this drug was absolutely ineffective in remedying. I foolishly thought that I was being safe taking a chewable grape tablet dose intended for kids 2 & over. I understand how a child or adult could have adverse effects and have their symptoms confused with an emotional disorder. But here's a hint - if you're having symptoms or an adverse reaction, investigate what you're ingesting! F 43 1 days
5mg 1X D
5/16/2013
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 1  allergies Severe insomnia, dry mouth, dizziness, restless jittery feeling. Here I lie in my bed at 12:45 and I have been here since 9...wide awake. Complete garbage. Never again!! had I have seen this earlier tonight..I'd never have taken it. F 44 1 days
5/9/2013
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 2  Allergies Insomnia, SEVERE Panic attacks, feelings of impending doom, Fatigue, Depression, Strange & Vivid Dreams, Irritablility, Elevated Heart Rate, Strange feelings in Stomach. I began taking Claritin 2 weeks ago to try and combat allergies that I thought were creeping up on me... after 1 week I started to develop insomnia for 4 days in a row...then I began having mild to severe panic attacks and extreme feelings of impending doom, feelings that my heart rate had climbed erratically when it didn't ... just an overall bad, bad experience I'm having and I'm getting off Claritin immediately! I wouldn't risk taking this stuff... Go to your doctor and figure something out first before you buy OTC Claritin. Benedryl will probably be better, but only for taking it at bedtime. M 35 2 weeks
10 mg 1X D
5/7/2013
Email
 1  allergies Ive developed anxiety issues while taking Claritin D. Cold sweaty hands, nausea, and erectile dysfunction. I tend to over do it a bit on caffeine pills because of the weird shifts I work, I'm sure the caffeine intake doesn't help at all. I've taken Cialis and Viagra both while taking Claritin D and they don't help at all. Does anyone know if non D allergy meds will have the same effect? I only need allergy pillsa couple of months per year thank God. M 37 7 days
12 hour
4/30/2013

 1  Allergies Dry mouth, palpitations, high blood pressure, nightmares, dizziness. F 47 10 days
1X D
4/22/2013
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 1  Allergies Took night before and woke up with a violent jerk, and two nightmares in a row after I did sleep...but the next night, 1 hour after taking the once-daily Loratadine tablet, I woke up with a violent jerk again, started to doze off but then...shivering - at first I thought I was just cold. Put on a shirt and socks, but the shaking continued all over my body. Teeth chattering, pretty much every muscle in my body spasaming nearly out of control. Grabbed a thermometer just to check if I had a fever or was cold - and a perfect 98 degrees. I didn't put 2 and 2 together until TODAY, as this has happened once before - but ONLY when taking Claritin generic. Twitching all over you body is scary as hell, and I would never take Claritin again no matter what !! M 36 30 days
10 mg 1X D
4/21/2013

 1  Allergy symptoms Within an hour of taking Claritin I was freezing and shaking uncontrollably. I was so thirsty and no amount of water quenched my thirst. My arms, legs, and neck ached and I felt like I had the flu. My heart was racing and felt like it was skipping a beat every so often. I fell asleep for awhile and then woke up sweating profusely. I had a constant feeling of needing to urinate. I felt very dizzy and after using the bathroom I was walking back to the couch and passed out. I woke up on the floor, flat on my face with blood coming out of my nose and a cut on my forehead. I felt like I was going to die! I was able to get myself to bed (I know...I should have called 911) and was feeling a bit better. The next day I still felt weak and had stomach pains, bloating, and felt dehydrated. I constantly felt like I needed to pee but couldn't. Now, 48 hours later, I feel much better but still not totally back to normal. I will not be taking Claritin again but my husband and son take it with no iss F 47 1 days
10mg 1X D
4/16/2013

 1  Allergies Strange wooziness. Room moving and almost like I was about to pass out. Constant deep breaths trying to fill lungs that felt starved for air. Out of body/reality sensations. Insomnia. When will I ever learn? I've got to stop giving in to fear and using pharmacueticals. They have taken years off my life with horrible side effects that frighten and destroy. Oh, and this drug did nothing for my allergies. F 52 4 days
10 1X D
4/15/2013
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 1  allergies dizziness, nosebleeds,feeling like I was going to pass out Thought there was something else wrong with me, then I realized I was taking claritin. Not recommended. F 46 14 days
10MG 1X D
4/14/2013
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 2  nasal drip Crying for no reason/emotional with no other reason I could point to but the addition of claritin as instructed by allergist. Will try the addition of this drug again to see if it really was the cause. To be fair it might have interacted with other drugs I take for night shift disorder. I did not see these emotional side effects listed on official Claritin warnings. F 41 6 days
30 mg 2X D
4/2/2013
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 2  Seasonal alergies Depression, random crying, irritable M 14 15 days
10 MG 1X D
3/24/2013

 1  severe allergy insomnia bad headaches fast heart beat hate it the worst u can take, it controlled my allergy symptoms but side affects were greater . never again i hate it made my life horrible F 37 3 days
10 1X D
3/18/2013

 1  Congestion Anger,aggression,anxiety,agitation,impotence I took Claritin D as directed by my doctor to help with residual sinus infection congestion. On the second day, noticed extreme irritability and aggression which I never have. Once I stopped, the symptoms disappeared within 24hrs. I was surprised by my reaction and will never take again. The pharmaceutical companies under-report side effects. M 38 5 days
240mg 1X D
3/12/2013

 1  Allergies Bothered stomach bad hip pain nausea heartburn body aches headaches. Thus is a bull sheet Med. I hate it and it should not be given to n e one. I am off it as of tomorrow. Took last pill. Bull shit how I feel bad when its supposed to help me. F 28 4 days
10 mg
3/11/2013

 1  to stop my nose from dripping I was trying to get over a very bad sore throat and wanted to stop my nose from dripping back...I was breathing great barely blowing my nose until I took the Claritin!!! And now I can't breath at all threw my nose and now I'm dripping threw my nostrils! How irritated I am right now....help can't breath!!! F 28 1 days
10 mg
3/7/2013
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 2  allergies I'd rather sneeze up a stop before I take Claritin ever again. I've been sick to my stomach, and my stomach has been making odd noises. I can not poop. every time I take an allergy pill, I can never go number 2. I'm so scared and never taking this again. also when I breathe it feels like I'm chocking, and my chest is killing me like someone is on top of me.... everything aches. back, neck, ribs, chest, head, everything. I feel like I have been run over by a truck. and it all started when I started taking the pills. maybe I'm allergic? I don't know..... F 14 3 days
30
1/26/2013

 4  Allergies Tight chest, difficult to take in large amounts of air, irritable, moody, slowed mental ability, poor memory, depression and anxiety immediately when going off. This stuff works very well as an antihistamine but the side effects aren't worth it for me. Going back to Allegra. M 50 14 days
10mg 1X D
12/30/2012
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 2  Congestion Did not really do anything for my symptoms but oddly I lost my sense of smell. I only took one tablet. I have a very good sense of smell and after taking Claritin I could not smell the cat litter box at all even when I carried it out to dump it. I could not smell anything at all, not even the semi-toxic wood fires up the street my neighbors burn this time of year. How would I be able to complain when they start burning tires? No, really - food lost all flavor. Smell started returning about 36 hours later. First thing I could smell again was Chinese food, but nothing else - could barely even smell rubbing alcohol. Stopped taking this drug and threw it out - did not want to risk some permanent damage from a do-nothing drug. Went back to Allegra which got rid of my congestion. M 53 1 days
10 MG 1X D
12/21/2012
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 1  against insect bite allergy 30 mins after having first dose my heart rate increased a lot, mouth went dry and i had constant feeling that i am about to faint. this reaction was happening once an hour durin a full day. i couldnt sleep and i became very nervous. once of the worst and scariest days in my life with that constant fainting feeling. I wont use claritin again in my life M 34 1 days
10 mg 1X D
12/2/2012
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 1  seasonal allergies i struggle from anxiety to begin with but it worsens it hoping it would clear my sinuses but makes me feel extremely unconfortable F 23 1 days
10
11/4/2012

 1  allergies Extreme anxiety, paranoia, and depression. Severe insomnia which could have been caused by the severe stomach pains i was having. Difficulty urinating. Severe dry mouth. Also, body aches were present. M 28 1 days
30 mg
10/23/2012

 3  Year round indoor & outdoor allergi None. This helped minimally. It's good for helping with sneezing and runny nose, but doesn't do much for overall congestion, post-nasal drip, coughing, etc. I stayed on it because it's dirt cheap and I didn't know what else to do. Stopped taking it and started Nasonex, which worked great short-term, but after several months I started having horrible side effects. So once again, back to wondering what the heck to do about these darn allergies. F 35 1 years
10 mg 1X D
10/10/2012
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 1   drowsiness, nightmares I was very tired, falling asleep on the drive home from work at 4pm which isn't normal. I had horribly gory nightmares, very vivid which I have never had a problem with. It didn't help at all with my allergies either. F 26 5 days
10mg 1X D
9/29/2012

 1  Allergies Insomnia, extreme dizziness, tightness in chest, fatigue, foggy headed, overall feeling of lethargy. Strange sensations in extremities- like my arms and legs were made of lead. F 32 7 days
30mg?
9/28/2012
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 2  Allergies Pounding heart, anxiety, dry mouth, insomnia, muscle twitches by day 6. Holy Hell, I am NEVER taking this stuff again unless it is forced down my throat. I'd rather just deal with the dizzy spells from my allergies causing sinus problems. I was in denial that the medicine was causing my anxiety because it really helped my allergies. I can hear for the first time in 3 weeks. The first day, no side effects. 2-5, dry mouth so I upped my fluids. I was drinking 8 bottles of water a day and it still didn't help. Days 6-8 = hell. An hour and a half after I took it, I was shaking, pacing my room, unable to sit still. I couldn't sleep to say the least. I was constantly waking up, shaking. Like I said, I was in denial. I took it two more days and I've had to talk myself down from panic attacks. I am not a very panicked person. I'm sure this could catch someone else off guard. My forever calm cousin took it, thinking I was nuts, and she said all it did was keep her awake. She's 30lbs heavier than me though. No more. I'm done. I know it said may cause nervousness, but this should be a sin. This isn't even the D-version! It's been 24 hours and it's a tad better. How long before this crap goes away?! (I gave it a 2 because it DID fix the problem...it just gave me more problems). F 22 8 days
10mg 1X D
9/27/2012

 2  seasonal allergies my son is angry and defiant, antagonistic at 8! He is normally easy going, pleasant, sweet and takes things in stride. Ironically, I recall trying this medicine with him at age 3 and went online to find side effects because I remember having a total change in disposition of my son then. I should have learned the first time! It makes me so angry why we are not warned about the pros and cons by doctors more often. My son will not be taking this drug again. M 8 2 weeks
10ml 1X D
9/22/2012

 3  seasonal hayfever Ran out of my prescription CLARINEX (which works very well for me). Pharmacy can't refill new Clarinex for about a week (insurance companies suck, don't they?), so with a coupon I bought a 10-pack of Claritin (which contains loratadine - a similar ingredient to Clarinex/desloratadine). Because I've already been taking my Clarinex for two months, I didn't notice any new onset of allergy symptoms - the Claritin seems to be keeping things at bay. What I did notice however, is that after the 2nd dose I am getting up 4x/night to urinate. I am a 51-year-old female and typically don't drink any fluids after dinner so I can hope to sleep 7-8 hours straight, but the past four nights I've awoken every 2-hours to pee. Thankfully, I am able to fall right back to sleep (another midlife problem for many - not being able to STAY asleep - try L5HTP!). Otherwise, the Claritin seems to be doing it's job for allergy relief. Will be back on Clarinex this week. Don't get too excited about everything you read on these blogs. Everyone is different and what works for some may not work for others. Take with a grain of salt all the negative side effects you read about - some people are just overly dramatic! F 51 5 days
1X D
9/16/2012
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 1  Allergies Chest pain and tightness, shortness of breath, mild dizziness, pain in shoulders and back and under arm pits, nausea, anxiety/panic attacks, random crying I took the Kirkland/Costco Claritan equivalent in conjunction with Flonase for approx 2 months and it helped with my allergies for sure. After one month I noticed a little wheezing and had a chest xray done at my annual physical that was normal After bout 1 1/2 months the side effects really kicked in and I had chest tightness, shortness of breath, unknow origin crying spells and anxiety. It scared the hell out of me and I ended up going to a cardiologist because I thought I was having a heart attack. All the tests were normal. I went to 2 cardiologists and neither of them paid much attention to me putting down using Claritin in my medicine history. On my own I decided to discontinue the medications and my symptoms for the most part have subsided within 4 days. I still feel slightly anxious today on day four after stopping the meds and a little dizzy, however I feel I will be back to baseline with a few days to a week. This website helped me realize I wasn't dying and it was a serious bad reaction to an allegedly safe drug. If you take Claritin, pay close attention to the side effects and if you feel them coming on slightly, stop taking it immediately. My wife takes the medication for approx 6 months with no issues. M 46 2 months
10MG 1X D
9/13/2012
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 3  Seasonal Allergies Claritin works better than Zyrtec IMO. If you are prone to anxiety, it will worsen the anxiety. At least it doesn't cause severe depression like Zyrtec (Reactine in Canada). Take Quercetin for seasonal allergies from your local Health Food Store. It's a natural Mast Cell Stabilizer made from the white rind of lemons or onion peel. The allergy drug Nalcrom is the synthetic version of Quercetin. It's cheap, effective, and actually "good for you" in that it's a powerful anti-oxidant and will reduce free-radical damage (aging).   M 40 1 months
10 mg
9/7/2012

 1  allergies I was taking it occassionally and the last time stayed on it to prevent sinus episodes become major again. I didn't put two and two together until a few days ago. every time I am on it I am a terrible person. I was irrational and very hateful. I didn't even know who that woman was. After realizing everytime I become irrational and out of control with anger I was taking it each time 24 hour, non-drowsy Claritin helped my allergies greatly, but becoming a horrible person with uncontrollable anger isn't worth taking. I have never taken any medication before that has done this to me. I hated myself for who I became. Thankfully I am not taking it anymore and back to myself! F 57 21 days
1X D
8/30/2012
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 3  Chronic Allergies Increasing anxiety and nervousness, irratibility, heart racing, insomnia I have been using the Walmart brand of Claritin. I can't calm my nerves or heart down. My body feels jittery,almost like i'm on some sort of speed or something. I can't sleep well. I tried this after using Walmart brand Zyrtec which would cause me to fall asleep at any still moment during the day and i just couldn't function on it. F 33 60 days
10mg 1X D
8/3/2012

 2   anxiety, overeating, depression, extreme weight gain I was 103 pounds, then I started taking Claritin and jumped up to 140. I am 22 years old and have never passed 120 in my life and all of a sudden this past year has been such a struggle with emotions and anxiety. I started gaining weight the week I started Claritin F 22
10 1X D
7/20/2012

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