There are 218 ratings for the drug: CLARITIN-D in the Askapatient database.

Key to ratings for claritin-d: 5-Very Satisfied: this medicine cured me or helped me a great deal. 4-Satisfied: this medicine helped. 3-Somewhat Satisfied: this medicine helped somewhat. 2-Not Satisfied: this medicine did not work to my satisfaction. 1-Dissatisfied: I would not recommend taking this medicine.

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Rating	Reason	Side Effects	Comments	Sex	Age	Time Taken		Date Added
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3	allergies	I am extremely drowsy as the drug wears off. I can't take it at work or will start to fall asleep in my chair as the day wears on. Loss of appetite. Ironically, even though it causes drowsiness, it also causes insomnia so I would advise to take it as early in the day as you can.	I find that is works great initially but the side effects are so strong for me that I can only take it once a week and hope that carries me through until I can take it again.	F	36	8 years		2/7/2010
1	Severe congestion	My side effects include: increased heart rate, uncontrolled tremors- hands and feet move/jerk without provocation. Loss of muscle control - was holding my iPod when my hand just fell open on it's own causing me to drop the iPod, nausea, tightening in the chest, dry mouth, dry nose, anxiety.	I took this medicine twice. Wednesday and Thursday morning at 8:30 am. It's Friday evening and I am still experiencing increased heart rate, tremors and random loss of muscle control. It cleared up my sinuses but the side effects are horrible. Do not take this medicine.	F	36	2 days		1/22/2010 Email
1	for alergies	Took at 4:30 - Usually take Musinex D with no problems. Within 1 hr. dry mouth, increased heart rate. It's now 8:30 and legs feel heavy, toes tingly, hard to take a deep breath and swallow, heart is racing. Definately feels like I'm on speed. Will never ever take this again!!	DO NOT TAKE THIS -	F	54	1 days		1/18/2010
3	Apparent dog allergy	Dry mouth, waking up throughout the night, and muscle aches in lower back and buttocks area, and back of thighs and back of upper arms.	I started taking this earlier this year after my doc said I had a sinus infection. I have since used it for all allergic reactions (and usually only take it for one or a few days--until symptoms subside). I expected it to affect my sleep and I immediately realized it caused dry mouth but I only just connected it to these out-of-nowhere muscle aches. I will definitely asked my doc for something else.	F	30	1 days		12/26/2009
1	Congestion	Anxiety, Insomnia, Cannot concentrate.	DO NOT TAKE THIS!!! I feel like I am on speed. I took this yesterday at 9am & have been up since..	F	28	1 days		12/10/2009
3	Allergies / Congestion	First night was good. Lost congestion but had a very vivid dream. Woke up several times. Then the 2nd night, I can't sleep even after working hard all day. I went to bed at 11 and woke up at least 4x. Barely slept. Extreme dizziness too but probably because I didn't sleep well.		M	39	2 days		12/9/2009
1	allergies	insomnia	took 24 hr claritin D at 2:00 PM and it is now 4:00 AM and I am still wide awake. complete insomnia. Would not recommend anyone taking this drug.	F	69	1 days		11/30/2009
3	Generic to severe allergies	Increased heart-rate, extremely tired/fatigued, occasional nausea	Googled trying to find a decent answer, with no luck on the subject. It does help with my allergies within about 30 minutes, but the side-effects make it very not-worth it. Finally realized it was this "non-drowsy" medicine...	M	18	2 years		11/28/2009
1	sinus pressure	Restlessness, anxiety, swollen tongue, feeling of swelling of back of throat, dry mouth, heart racing	I am just back from the ER. I took Claritin D this morning and after 30 minutes began experiencing my tonque swelling and a feeling of such anxiety, shaking and difficulty swallowing. I have been taking regular Claritin for many years without side effects but I thought the "D" would reduce the pressure I was still experiencing after a sinus infection. I have completed two series of antibiotics and although I have many allergies to drugs, I never thought I would have a problem. I have taken Nyquil in the past when it still contained pseudoephedrine and din't have this reaction. Do not take this drug!	F	57	1 days		11/28/2009
1	SINUS CONGESTION	panic attack like feelings, tighness in chest, back, neck. Very dry mouth, feeling like I could vomit. Tingling feelings down my arms/legs. Could not sleep AT ALL!	I can not believe that they can sell this shit! I went on a weekend road trip to SC I lost a day of work over it, my symptoms were so bad, all I could do was cry. I thought I might be having a heart attack. I had a panic attack about 2 years ago, at first I thought, Oh no not again, but this was LIKE NO OTHER! It lasted so long. I WILL NEVER TAKE THIS AGAIN, AND WILL TELL EVERYONE I POSSIBLY CAN NOT TO TAKE IT. Claritin D is a nightmare in a pill!	F	42	4 days		11/4/2009 Email
1	nasal congestion	I cannot sleep and my mouth is dry.	It's now 2:00 am and I got up at 5 am yesterday morning. I never have insomnia. This did not clear up my congestion either. I am returning the package to the store tomorrow. I would not recommend this drug at all. They keep it behind the register here in MA b/c people use it to make meth. That should have been a tip-off. But my doctor recommended it so I thought I'd give it a try.	F	49	1 days		10/23/2009
1	allergies	Nausea, dry mouth, dry lips, heart palpitations, headache, trouble sleeping, loss of appetite, lower back and joint pain, dizziness, anxiety and inability to think clearly.	I seriously can't believe they sell this stuff. I'm assuming how I felt around hour 23 is similar to what it feels like to come down from meth. I will NEVER take this drug again and am so glad I found this forum before I took a second dose. I would much rather have congestion and sneezing than feel like a crack head. I took 1 pill at 5 pm on Wednesday- it's now Saturday morning at 3:30 am and I can't sleep. My joints and lower back are still killing me, too. This crap is pure evil- you'd think after two and half days, it would be out of my system. I just want to feel normal again!	F	33	1 days		10/17/2009
3	stuffed up nose	Insomnia	Cleared up my nose. However I wasn't able to sleep at all last night. Still feeling 'wired' 12 hours after taking one dose.	M	39	1 days		10/14/2009
3	Seasonal allergies	Constipation, dry mouth, some insomnia. frequent urination.	I had really bad allergies this year. I took the 24 hour Claritin for about a week. The drug cleared my sinuses up almost immediately. I had some insomnia the first few nights, but it went away. The constipation was the worst! I would go several days between a good bowel movement. Yet, because of all the water I drank to get my bowels moving, I had to go to the bathroom and urinate all the time. Regardless, my mouth was constantly dry despite drinking excess water. Lip balm helped. Had I known about the constipation issue before, I would've had some prune juice or mineral oil. But it did take care of the allergies, though.	M	32	8 days		10/9/2009
1	allergies	My heart was pounding, thought I was having a heart "problem", major anxiety, insomnia for 2 straight days, still suffering from sleep deprivation as I type this, too tired to think or finish. sheer hell on earth	Never again!	F	50	3 days		10/4/2009
1	nasal congestion	extreme dry mouth, thirst, anxiety, extreme sweating, frequent urination, jitters/nervousness, loss of appetite, depression, feeling hot	I tried 24-hr Claritin-D only 3 times. I took the whole pill once the first day. It worked great that first day, clearing up my nasal congestion and allergies completely and I felt great because I could finally breathe out of my nose. But I also had a ton of sweating (I mean a lot) and increased thirst. I was really jittery, but not anxious or nervous. I felt sort of buzzed like I had drank a ton of energy drinks / caffeine. The second day I tried only half the pill, hoping it would reduce the side effects, but I felt just as bad and my nasal congestion didn't clear up as well. I figured maybe it will go away eventually. So I tried a third day of half the pill, which was yesterday. I just woke up at 3am, and I felt extremely, hot, extremely thirsty and just could not sleep. I was tossing and turning probably since 2am. It's 4:30am now as I write this, and I feel terrible. For most of yesterday I felt like a nervous wreck, and I was very depressed. I even had a few bouts of anxiety, which is not like me at all. I also lost my appetite and was oddly not hungry for most of the last few days. I only ate a few meals, and I'm not sure if I've lost weight. A few people told me I looked really tired. I will never ever touch Claritin-D again. I'm guessing it's because of the high pseudoephedrine content, which I will never touch either. The negatives far outweigh the benefits. I can't wait for this stuff to get out of my system.	M	25	3 days		10/3/2009
2	hay fever, cats, dust etc.	I took Claritin-D for a while regularly (at least a year) and though I never really noticed any intense immediate side effects, over time I began to realize that my heart rate was elevated and intensified, though I never linked this to the drug. However, about a month ago I stopped taking Claritin because of technicalities (apparently you need a prescription in Oregon) and I noticed that my heart rate was much more normal (going from about 90 while on Claritin-D to around 60). I'm fairly certain that my blood pressure as well has decreased as I've begun to experience headrushes when standing up etc. Today I took Claritin-D for the first time in a while because my allergies are acting up and I managed to get a prescription and since yesterday my heart rate has increased considerably. Though it does wonders on my allergies, it is disturbing that it should affect my heart rate in this way and I think I am going to stop using the drug.		M	18	2 years		10/2/2009
1	Allergies	I started taking the 12 hour generic version of Claritin-D last night. Within 30mins my heart was racing, my mouth and nose went dry, and I could hardly walk I was so sleepy! I took it again this morning because it helped my allergies and the side effects are way worse! My eyes can hardly focus on anything, everytime I stand up I blackout and my vision feels crosseyed. My head feels very allert and really fuzzy. I have also felt sick to my stomach and had back pain.	I would NOT suggest anyone take Claritin-D or the generic version! The side effects are severe and are seriously affecting my ability to walk, think, and see! Try something else!	F	21	2 days		9/30/2009
1	Severe Sinus Headache and Pressure	anxiety, weakness, light-headedness	I took Claritin D 12 hour non-drowsy for the first time today around 2pm. At approximately 5pm, I became very lightheaded and anxious. I ended up calling "Ask a Nurse", who after questioning recommended that I don't take anymore and see my doctor within 72 hours. My Dad also suffers from severe sinus headaches and has no problems with Claritin D. I will not take this product nor recommend this product to anyone!	F	36	1 days		9/27/2009
1	Allergies	Major insomnia! Headache, dry mouth, felt like I had taken speed or something.	I would NOT recommend this to anyone, it worked ok, but the side effects are not worth it. Also I was reading all your comments and wanted to let some of you know from my research I found the following : Seek medical attention right away if any of these SEVERE side effects occur: Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; difficulty urinating; fast or irregular heartbeat; mental or mood changes; seizures; severe dizziness; uncontrolled shaking or tremor. Some of you had these symptoms so be aware! Take Benadryl it works better!	F	34	1 days		9/12/2009
4	Allergies	HUGE Insomnia, and depression	Does clear up my allergies and stopped my snoring	M	20	6 months		8/26/2009
1	hives	insomnia and a severe reaction that caused by lips, checks and eye to swell. The hives went away but the side effects were 100x worse.	I will never take Claritin-D again	F	37	1 days		8/14/2009
2	itchy eyes and nose	insomnia, internal cramps in legs, jaw clenching, dry mouth, restlessness		F	31	1 days		8/12/2009
2	Congestion in the ears	Inability to sleep, heart racing, cotton mouth and feeling buzzed.	Not only do I have all these negative side-effects but it has not cleared up my ear "congestion" at all. I will never use this product again unless I WANT to get high!	F	40	2 days		8/10/2009
1	Ear infection, plugged eusthcian	I took one Claritin D 24 this morning at approximately 10 a.m. At approximately 2 pm, my heart began to pound and my throat and nose was so dry they felt like sand paper. Not only did my heart pound, but my heart rate shot up as well and stayed there for a long time (at least to me).I was very nervous and antsy. Now, my head is pounding and so is the ear that the medication was supposed to help.	I have only taken one tablet and will not take anymore~	F	53	1 days		8/4/2009
3	Loss of libido, nose bleed, problem	To help my allergic reactions to oak and pine pollen in FL I saw my family doctor in March and the doctor recommended that I take CLARITIN-D-24 daily until mid Sept. The drug worked, no allergic issues with the pollen in my area, no congestion life was good. But, I noticed problems urinating, my sex drive was not like it was and I had a nose bleed during sex which was down right scary.. Late July I went to see a Urologist and of course listed CLARITIN-24 as the medication I was taking... They drew blood to test for cancer, did the exam of the prostrate, uroflow test..... The doctor then commented about drug interactions... CLARITIN D-24 can impact the prostrate cancer test and it care impact urine flow and it can cause with freq use cause the blood vessels or linings in your sinus area's to be weak and if your excited, blood pressure is raising those small blood vessles in the nose could bleed.	I have since at my urologist suggestion stopped taking CLARITIN D -24 and it's has been 2 weeks and my sleep is back to normal, no problems urinating my prostrate cancer test came back normal and my sex drive is back to normal... Now to find another drug to reduce my allergic reaction to oak and pine pollen next year.. IF your taking this drug be careful and men, be sure to tell your doctor your taking this drug....	M	55	5 months		7/30/2009
1	Allergies	Light headed, dizzy, ANXIOUS, jittery, overwhelmed, unintentional anger, over emotional, back pain, increased use of deodorant, abnormal sweating, sweating profusely during sleep.	I have been taking Claritin-D 12 on and off over the last 2 years. I was satisfied at first. Before class, I would grab a coffee and some breakfast, then take a Claritin, which was awesome for those early classes. However, when class ended for the day, I really began to notice the side-effects. If you like coffee, save it for another day when you are not taking Claritin-D... At one point I had alomost convinced myself that I needed to see a psychiatrist... I cannot believe this product is allowed otc by the FDA. I have at some point experienced everyone of these symptoms mentioned on this site. Surely there are other alternatives to treating severe allergies than having to rely on legalized meth.	M	24	2 years		7/13/2009
4	Severe Allergies	Dry mouth- the constant feeling of dehydration which led to drinking 25+ glasses of water a day and still not feeling satisfied, Shakes/tremors, fatigue, confusion, anxiety, low fever, extreme loss of appetite, and jaw clenching.	Claritin D is the only allergy medicine I have taken that actually works 100% preventing all my symptoms of allergies. I'm just not sure yet how it weighs out against the negative side effects...	F	20	3 days		7/6/2009
2	Allergies	INSOMNIA. Dizziness upon standing. Internal tremors in bed (very weird feeling).		M	40	2 days		6/26/2009
2	Wasp sting	It was recommended by a nurse that I take Claritin to reduce the swelling in my entire right arm due to a wasp sting five days ago. I took the Claritin 24 hour pill this morning at about 8 am and 12 hours later my jaw is clenched and I am grinding my teeth which is the same effect that crystal meth had on me when I used to take that illegal drug in my youth.	I will not take Claritin again. I took it because I didn't want the drowsy side effects of Benadryl which is the other OTC recommended by the nurse employed by Blue Cross.	M	60	1 days		6/18/2009
5	Allergies	Clariton - D 12hour is an awesome drug. I pop one everytime my allergies act up in the morning. I can see why meth heads use this, the Pseudoephedrine contained in it has almost opiate-like characteristics. Not only do i get fast acting allergy relief, but in my stressful work environment, its best side effect is lethargic. I can get through my day at work feeling like i'm laying down in my bed (only im actually at work), not caring about a damn thing. The side effects might be different for other people, but for me, I love it.		M	23	1 years		6/11/2009
1	Nonallergic rhinitis	Took Claritin-D for YEARS for the decongestant factor! Then decided I don't want to pump the drug Claritin-D into my body anymore. While on the med I had poor sleep and never linked it to Claritin-D. I couldn't take the 12 hour because it kept me awake, not sure why I didn't think the 24hr one was affecting me. So I had another reason to stop. I itched for weeks after stopping. When I went to the gym and got hot and sweaty-the itching was so intense I thought I was going to die. I wondered if this was how meth addicts felt and understood why they would try and cut their nose off to stop the itching.	Be aware before taking this drug that stopping is hard and has side effects. I've also read online about other people having similiar issues with other drugs containing Antihistamines...and that's not something they put in their drug information	F	34	10 years		6/10/2009
1	Seasonal Allergies	I've always taken allergy medicine for my severe seasonal allergies but nothing like this. I have not slept for the past couple of days. I lay in bed looking at the clock change from 11pm to 5am...UGH! I am running on empty right now and feel worse then dealing with my allergies alone. Also, my boyfriend has noticed that I've been very irritable and aggressive lately and that is very unlike me.	I would recommend finding alternative medication. I am considering riding out spring without any meds at all. The side effects are not something I am willing to deal with.	F	20	5 days		6/10/2009
4	Extreme sinus pressure, headaches,	Clentched-jaw, tingling of skin, loss of apettite, insomnia, extreme focus,	This feels a lot like an Adderal, an upper of some sort. It has worked miracles for the horrible sinus pressure, headaches, neck pains I was feeling. But, I have to wonder what this is doing to my system and I can imagine that if you take this everyday, or regularly, you are bound to suffer long-term side effects. I'm going to search for something different, I hope I can find something that helps my symptoms as much as Claritin-D	F	29	40 days		6/8/2009
5	Allergies Sinus Blockage	Claritin D keeps me extremly focused..like I am in the Zone. I never knew it would unblock my nose and allow me to sleep so well. I have never sleep so good. I use a CPAP machine and for the first time in 5 years, I could sleep without snoring. Awesome Drug.	I think this affects certain people in different ways. I am a 40 year old male and I have always had nose blockage and a D Septum. This is a great product.	M	40	15 days		6/3/2009 Email
4	allergies and sinus congestion	This works great for me but the problems I had was sleeping at night but had a ton of energy in the morning witch was great. I also had sexual problems and after seeing the doctor he said it might be this stuff so I got off of it and the sexual problems went away.	Claritin d is the only stuff that works for me and I will use it when I can just not when dating its a bad idea if you want the night to go right.	M	25	2.5 years		6/1/2009
1	sinus infection/seasonal allergies	COULD NOT sleep. Heart rate went to 92. Almost 12 hours later it is just down to 83. Severe ringing in ears. Spaced out feeling. No appitite. Have taken this drug before and it caused jittery feeling and no sleep but this is the worst I have ever felt on this drug. I woud think that if you have undiscovered heart problems, you could be in trouble!	Please do NOT take this drug. Makes you feel extremely lethargic.....AND at the same time completly aware of everything that is going on......at the same time. I have been taking this drug for flu/allergy/sinus symptoms for week and one half. Also VERY bloated which is odd because you really don't feel like eating anything.	F	63	1 weeks		5/28/2009
5	Very bad allergies all year long.	I didn't realize the things I am experiencing were from Claritin D until I went to this website. Cramps in my feet, chills, major loss of appetite, and ocassionally feel like I have a low grade fever. I also feel a bit lethargic and have experienced a low libido - which is starting to affect my marriage. However, the medicine did what it was suppose to do with my allergies.	I need to get off of this medicine - but its the only one that really helps my allergy symptoms. However, I don't feel I can continue with these types of side affects.	F	59	365 days		5/24/2009
1	Seasonal Allergies	High Anxiety, trembling and shaky hands, trembling lip and chin, internal tremors, rapid pulse, insomnia, moodiness (easy to snap at people), very foggy head feeling and no ability to concentrate	I will never take this again. I have never experienced any worse feelings in my life then being on this. I thought I was going crazy or had a horrible disease until I realized it was the Claritin D the entire time. I would recommend everyone stay away from this product and find something else. I will never put this in my body again and the company should be held accountable for how horrible these side effects are. I feel like a completely normal person since I have stopped taking this. I sleep, my heart rate is normal and I have no anxiety or tremors or shakes anymore.	F	37	5 months		5/22/2009
3	itchy, runny nose and sneezing	Claritin-D (24 hour): big time loss of appetite (barely ate today), mental detachedness, mild depression, unusual feelings of boredom	The medicine was somewhat effective, but not totally. My allergies are pretty mild, so, in my opinion, the side effects are not worth taking the pill.	M	21	1 days		5/21/2009
1	seasonal allergies	My 16 yr. old son has been taking this for about a week. We couldnt figure out why he has been so angry.Thank god for this site as I can see others have had the same prob. he also is exper. cold sweaty hands. Without much relief for his allergies.	I think that Claritin should be a little more specific with their side effects. The side effects my son is experiencing far out way the relief (if any)he has gotten from this medication.	M	16	7 days		5/21/2009 Email
3	Seasonal Allergies	Claritin D-24hr-Irritability, Aggressiveness. Claritin D-12hr-Loss of appetite. A cloudy, almost high feeling.	This prodoct worked ok for my allergies, which were pretty sever. Had a sore throat, conjested sinus and runny nose. It dried out my sinus and got rid of the sore throat. Still have to blow my nose every once and a while but its not running. I started out taking Claritin D-12hr when my seasonal allergies started up. I took it for 4 days. During this time, it reduced the severity of my allergies. I also lost 4 lbs, loss of appetite and had a constant cloudy, almost high feeling. I switched to the Claritin D-24hr when I ran out of the 12hr. I immediately noticed a increase in irritability and feelings of aggressiveness. I'm on the 3rd day of feeling like this, so I think I'm gonna stop taking the Claritin D-24hr. Seems kinda odd that the 24hr and 12hr would affect me differently, but thats what I experienced.	M	32	7 days		5/18/2009 Email
2	Allergies	Insomnia, light Headaches, sneezing/bloody nose...	Dont take it! find an alternate solution.. u will be glad you did!	F	23	2 days		5/9/2009
1	Allergies	Frequent urination, insomnia, headache, dizziness. Cannot sleep, and it's 5 am.	Don't take this, period.	M	17	1 days		5/5/2009
1	Recommended by doctor for congestio	I took Claratin D-24 for 4 days. By day 3, general lethargy,reflexive coughing, and mild insomnia. By day 4, pinkeye, drowsiness, constricted breathing in addition to day 3 symptoms. When i stopped, symptoms begin to clear @ 24 hrs. after the last dose.	I was diagnosed as having a cold; the Claratin D was supposed to clear up my nasal congestion. Instead, it made me feel worse.	F	53	4 days		5/5/2009
1	hay fever	terrible insomnia. just could not sleep.		M	40	4 days		5/3/2009
1	itchy eyes and runny nose	sleeplessness, Cough and bloody nose	Have not slept for 3 nights. This medicine was "non drowsy" ! It is what it says.	M	36	3 days		4/30/2009
4	Very bad allergies	I took this medication for a few months about a year ago and had no side effects. But I have started it again 3 days ago. The first night I only got half an hour of sleep(but I also drank a soda about an hour before bed that night). The second night I was restless and woke up it seemed every time my boyfriend rolled over in bed. It's the third night and I slept soundly for about 4 hours before I woke up. After an hour and a half of trying to sleep again I gave up.	I am very tired right now, but besides the insomnia this medication has done wonders. I would like to say the benefits out way the side effects for me, but I'm sure if this continues after about a week I'll be delusional from the lack of sleep. On the positive side though, without it I suffered from horrible sinus headaches, stuffy nose and runny nose, sore throat, itchy and water eyes as well as back and neck aches. This medication has done wonders for those, and every other medication that helped my allergies made me so drowsy that I almost got fired once because my boss thought I was on drugs. I will try to take the medication on a different time of day and if that doesn't work I will switch to the 12 hour.	F	19	3 days		4/27/2009
1	Sinus congestion	Sweating, anxiety, heart palpitations, dry sore throat that feels restricting, sleeplessness.	Didn't help my sinus congestion at all. I only took this pill for 2 days, the 24 hour Claritin D and I can't wait for 3 pm to roll around so that it can get out of my system. I will never take this pill again!	F	44	2 days		4/27/2009 Email
4	Allergies	Way over-stimulated. Totally focused on my job which was my first clue this drug is working overtime! Helped with the symptoms of stuffiness, sneezing, and morning headaches from those clogged up allergy season nights. I think I will stick with Claritin without D as this helped too but not as strong.	I had a hard time trying to purchase this med at my local drug store. They asked me to sign and for my driver's license. The guy next to me with the beer got in and out faster than I did!	F	52	1 days		4/24/2009
2	Post Nasal Drip / Allergies	headache, light headed and dizzy, detached awareness, lethargic, nausea	Helps my allergies only a bit. Haven't taken this in over two years because the side effects were terrible last time, but they're just as bad this time around. Ehh, took the 24 dose and want it out of my system NOW!	F	25	1 days		4/20/2009
2	watery eyes, sneesing and bad sinus	extremely bad headaches (like a heartbeat), high blood pressure, slight fever, jittery, and trouble sleeping	My sinuses somewhat cleared after a couple days but for what its worth i would have rather of not taken it and just took some benadryl. I felt worse and got more symptoms from taking it then it helping me. My blood pressure is so bad I started seeing stars and got light headed and I am in really good cardio shape.	M	28	2 days		4/15/2009
1	Seasonal allergies	Seriously sore jaw, just throbbing pain which is easily the worst side effect for me, although the sinus headache and intermittent nausea run a close 2nd & 3rd. This drug (I made the mistake of taking the 24-hour dose) did absolutely nothing for my allergies - I still have the runny nose and sore throat - and the side effects are making me feel like a speed freak. I took the pill at 11 AM, it's now 8:40PM - tomorrow morning can't come soon enough.	Based on this experience, I cannot recommend the 24-hour Claritin-D. Try something else!	M	31	1 days		4/14/2009
4	allergies	The first day I took it, I noticed how tired and annoyed I felt, but it helped my allergies. I decided to try it for one more day and didn't have any side effects except for loss of appetite which is fine with me. I worry about the long term side effects of this medicine and will only take it when absolutely necessary.		F	26	7 days		4/13/2009
4	Allergy	Jitters, sleeplessness	I've had severe allergies all my life. I've now been taking shots for over 4 years and it's helped emensely. I've tried virtually all over the counter meds plus some perscription meds and Claritin D is the only thing that's ever helped me. The side effects are minimal compared to the benefits. Seems like I really only need to take it once in a while because the shots have cleared up most of my problems.	M	54	2 years		4/12/2009
5	allergies	Try the Claritin D 12 hour! It worked best for my allergies out of any other allergy pill. I also seemed to lose weight when I was on it; I think it curbed my appetite. THe Claritin 24 hour is horrible. I felt anxious, jittery, paranoid, and did not sleep at all the days I took it.		F	25	3 months		4/10/2009
1	sinus/headache/congestion	Not sleeping at all, jittery, depressed, no appetite, really painful leg and feet cramps. I have only taken this for about 6 days and I will not continue. It does help with the sinus congestion a lot, but I actually have a sore throat now and gravelly voice.	My pharmacist recommended this, but my doctor had recommended Benadryl. I am going to try that, since I believe it is the sudafed in Claritin that is messing everyone up. Very powerful drug.	F	51	6 days		4/2/2009
3	sinus infections and fogginess	high blood pressure for the first time after taking it for a year.	Works great on my allergies and sinus problems but definetly makes me jittery and now I've developed high blood pressure and I'm in great shape. I'm going to try nasal sprays and regular claritin to see if my blood pressure drops.	M	40	365 days		4/1/2009
4	allergies	Has anyone experienced bloody noses while on this medication?		M	59	14 days		3/29/2009
3	Eustachian Tube Dysfunction	I have Eustachian Tube Dysfunction. Has anyone else here used Claritin-D to treat this dysfunction? If so, what are your comments? I value your opinions before I start my Claritin-D treatment protocol, which my doctor just prescribed. Thanks.		M	50	0 days		3/25/2009
4	Year Round Allergies	Any time I stop taking Claritin-D 24 hr it seems like I have difficulty breathing at night. I cough a lot, and small amounts of work or excercise leave me short of breath.	It works great to control my allergies, but I worry about what else it is doing to me.	M	33	4 years		3/15/2009
5	I have terrible allergies.	I have never had any bad side effects from taking Claritin-D. However, my blood-pressure does go up everytime I have to show my Drivers License and sign for "allergy medication". Why, so the Gov't can keep track of how many times I blow my nose? What a joke!!!	For all you people who can't handle CLARITIN-D - please, stay away from ALL allergy medications before you mess it up for the rest of us!!!	F	54	10 years		3/11/2009
3	spring sinus allergies/hay fever	Dry mouth and throat, dehydration, skin rash.	While it was awesome for treating and preventing my sinus allergies, while taking Claritin-D my mouth and throat were so dry and I was so dehydrated that I literally had trouble speaking! My throat was terribly sore and I couldn't believe how thirsty I was (my water consumption doubled). All of this was tolerable, until I woke up in the middle of the night after having taken the medication for about 5 days with several patches of an itchy rash on my shoulders and neck. The next day I didn't take the Claritin-D, a good bit of the rash faded, but one spot would not fade until I stopped taking the medication and slathered it with hydrocortisone. All in all, it worked great, even with the dry mouth and sore throat, but the skin rash kinda scared me so I stopped taking it.	F	23	7 days		3/11/2009
1	allergies, with headache and stuffy	I am so glad I found this web site, because I thought I was going nuts. I have been so sick, took this medicine for 3-4 days, I have been having horrible nausea, then today on the 4th days, gagging, vomiting, I slept last night but woke up every one or two hours, felt good in the morning unitl I try to eat or drink, and forget about your morning cofee, also feel lethargic, and removed from life taking this. I have no energy either.	I couldn't go to work because of the side effects of this medication, I am definelty going back to regular clartin, and just Mucinex, and maybe Tylenol Sinus. The side efeects are not worth it..	F	38	4 days		3/10/2009
3	seasonal allergy symptoms	alternating chills and hot flashes, dry mouth, nausea and stomach cramps	My waterey eyes and congestion are gone completely. So I'm impressed with that. But I keep alternating between being hot and cold. My LEGS sweat! What's that about? Then these chills and goose bumps. Weird. Then late this evening I started feeling sick to my stomach. I took the 12 hour one. After reading the other comments I am very glad that I took it early this afternoon. Hopefully I won't have insomnia. I've actually had a couple of short naps today. Perhaps it made me drowsey. Although I'm glad for the relief of my symptoms, I will only take this again if I am desperate.	F	38	1 days		3/8/2009
1	Congestion, sinus pressure	Insomnia (I took it at bedtime with the hopes it would decongest me and enable me to sleep better - should have read this board first - went to bed at 10pm and was/am wide awake at 1am); throat extremely tight (felt like I was having a panic attack); anxiety; nervousness; bloating; thirst	My sinuses defintely cleared up, so I suppose I give Claritin D credit for doing what it's supposed to do. I wouldn't recommend it to anyone due to the side effects, though. I'm wide awake now in the middle of the night, panicky and alternating between hot and cold spells. I'm a very healthy person who has never had sleep problems and doesn't take any regular medication, and this drug is making me feel pretty crazy. The closest thing I liken my current side effect symptoms to is when I took diet pills w/ Ephedra in college and had panic attacks. The pills worked, but it wasn't worth the side effects.	F	28	1 days		2/13/2009
5	for severe sinus pressure	i felt alert .. i take the claritin 12-hour when i need to.	i'm sorry to hear about all these negative side effects from the others.. i use this in conjunction with a saline nasal spray and they work wonders combined. i have to say this is the ONLY medicine that helps my sinus pressure. thank goodness for claritin d-12 !	F	41	14 days		2/10/2009
5	year round allergies	back pain, urinary infections, insominia, irritability, costipation	I could not live with out this medicine. Side effects are bad but the alternative is worse. We moved across country 4 years ago because the doctors had done as much as they could for me. I had hoped I could stop taking this but my minor allergies are still bad enough to have to take it. I would sleep 24 hours aday with out it. If I still lived back east I would be in the hospital.	F	43	9 years		2/10/2009 Email
1	Sinus Pressure	Drowsiness, heart palpitations, anxiety	I took Claritin-D 12 hour twice one week apart and it's caused heart palpitations, did not help with sinus pressure at all. Will never take this again.	F	48	2 days		1/25/2009
1	Sinus headache; scratchy throat	I am a 41 year old male in Northern Kentucky near Cincinnati, Ohio. Took one 24 hour Claritin-D tablet at 10AM this morning (17 hours ago). It is now 3AM and I cannot sleep. Having terrible insomnia and feeling jittery. Earlier tonight I had very little appetite at supper time. This afternoon I felt significant anger/rage and threw a temper tantrum at work. I will NOT take this medicine again. It is definitely not worth it. Particularly the inability to sleep.		M	41	1 days		1/3/2009
5	Allergies Took Claritin D 12 HOUR	Extra energy, less appetite, good for allergy symptoms HIGHLY RECOMMEND THE 12 HOUR VERSION NOT THE 24 HOUR	MY ADVICE IS FOR ALL OF YOU WHO COULDNT SLEEP - TRY THE 12 HOUR VERSION AND TAKE IT IN THE MORNING. I have the same problem with the 24 hour formula but the 12 hour wears off during the day and then you can sleep better. I LOVE this stuff, it clears me up and gives me energy. But not too much. THe 12 hour is a little less potent.	F	31	4 years		12/25/2008 Email
1	Sinus Infection/Headaches	Claritin-D Non-Drowsy 12 hour pills are an oxymoron. Please do not use this product. The first day, was fine, then I experienced extreme and unusual fatigue, dizzy spells, loss of appetite, very drowsy all day, but sleepless at night (would sleep 2 hours a night) Bad dreams, blurred vision, anxiety, panic attacks waking me out of sleep, lightheadedness. I became antisocial and angry over the 5 day period of taking the tablet! I didn't take my 2nd dosage this afternoon, and I feel 80% better at 10:00 P.M	This drug is scary. I thought that I was still suffering Sinus Infection symptoms, but turns out the side effects of this drug are way more dramatic then any sinus problems.	F	28	5 days		11/24/2008
1	sinusitus, draining	Extreme depression after a few days. Very dangerous. definitely affects the moods. Be careful.	Had to quit. Got so down that it didn't even matter if it worked or not. Come to think of it, I don't even know.	M		7 days		11/23/2008
3	allergy	I could not sleep very well I had very low concentration span my heart rate was up and it was difficult to perform sexualy.	I think the stuff works fine for the most part my itchy throat and runny nose went away I havent used any for a long time but when I did yesterday it was a nightmare it was like i was tweaking or something anyway thoght I should say something.	M	20			11/14/2008
3	Sinus pressure	Increased thirst, dry mouth, insomnia, extreme need to get things done, wide-eyed, chills up and down my body (but not horrible), determination, extreme decrease in appetite.	About 30 minutes after I took it, I felt so much better. But about 4 hours later, I was like a crazed woman. The first mistake was taking it at 7pm - I didn't go to sleep until 6am and only slept 3 hours. I woke up and was completely awake and not at all tired. It has been almost 24 hours since I took it and I'm still in a weird determined state where I think I need to get things done. I still feel really wide-eyed and not hungry at all. I did work on my computer last night from 12am-6am without even a 5 minute break. Maybe they should market this to college students studying for exams or people trying to lose weight...lol.	F	27	1 days		11/14/2008
3	year round allergies	no side affects untill I stopped taking Claritin D	I felt great fro 6 years on Claritin D. I did tell the Dr that I was addicted and he laughed! I stopped taking Claritin D after a severe anxity attack that came out of no where. I stopped all allergy medication and I have started the Shots!! I have been off all meds for 2 years and I still feel very tense and anxious and my mind races all the time.	F	31	6 years		11/12/2008
4	Sinus congestion & sneezing	Took me a while to figure out what was causing my heart palpitations (was worried I was going to have a heart attack), bloating after eating and constipation, but has really taken me from feeling miserable with sinus congestion and constant sneezing attacks all year round to feeling human again. The benefits outweigh the negatives for me.	Nothing else has worked for me, I take it daily and if missed I notice a return of my sinus almost immediately....hurting me in the hip pocket though.	F	51	60 days		11/5/2008
3	sneezing, nasal congestion	wide eyes, very focused, annoyed by people, definite loss of appetite, feeling tired yet wired, could not sleep at night, woke up with ease, heart raced, weird sweeping chills w/goosebumps, clenching of jaw	I have never taken allergy medicine before but thought I would try it because of my symptoms. I took one pill. I had absolutely NO interest in eating dinner the day I took it, and the next morning and afternoon I didn't want to eat either, and I had taken the pill yesterday! I would describe the feeling of being on this drug as being on Adderal or Ritalin, some kind of speed. Don't plan on having a good nights sleep at all while taking this medication. You will be tossing and turning. Very potent! Definitely not for people with any health problems or heart problems.	F	25	1 days		11/5/2008
3	rashes-allergic reaction to the sun	rapid heart beats, high blood pressure, insomnia, almost passing out, breaking out in sweat, tired all the time.	I took Claritin-D for 3 days. The rashes are gone but I could fall asleep for only an hour or two each day. Yesterday, I though I was going to die because all of a sudden, my heart raced like crazy and I broke out in sweat. I started seeing stars around me and I almost passed out several times. It lasted for about two hours. Now I feel so tired. I was going to the doctor before I decided to check the internet for side effects and I'm glad I did. I'll never take it again. I hope it didn't cause any permanent damage to my heart.	F	59	3 days		11/3/2008
3	Stuffy Nose, Allergies	Severe anxiety, fever-like chills all up and down my body, heart racing, fast breathing, weird awareness of everything going on aroud me	I just took my first dose 5 hours ago and started feeling funny so I google searched the side effects of claritin-d and came across this site. Thank god I'm not going crazy...not sure how much longer I will take this.	F	25	1 days		10/29/2008
4	Seasonal Allergies - Fall,	Well, overall, I'd say I like this (my throat hurt terribly before taking the medication). I am definitely out of it however. I can't remember what I had for lunch, wait, I just remembered. Anyway, I'm really out of it, and definitely have weird chills going through my body, but its better than having a terrible throat pain and not being able to talk or sing). I also have a decrease in appetite, but thats ok for me because I usually eat too much.	Overall Good	F	26	5 days		10/27/2008
4	Allergys	Headaches and pains in the morning. Noticed much lower stamina during sex. Does help with the congestion and itchy watery eyes. I will continue to use until I don't need it anymore. But my wife is starting to ask questions.		M	30	4 weeks		10/8/2008
2	Allergies-FL	Exhausted, Totally Out-of-it.	Took 1 - lost another day of my life over an allergy med. In bed most day. Seemed to work for allergies BUT side-effects NOT worth it. Don't even think about expensive drug SINGULAR it almost killed me.-Read Reviews friends on that drug.	M	50	1 days		10/6/2008 Email
1	Aleergies, sinus head ache,	Very jittery. Still am right now though from it. Headache went away and so did sinus pressure and relieved itchy eyes. Feel as if im on some type of rush and very hyper yet im very tired. I wanna go around doing things very fast and i feel just horrible. I'd rather have my headache back.	My first time taking it. Took it about 10 hours ago.Still feelign side affects	F	15	1 times		9/29/2008
2	allergies,sneezing constantly	WORST HEADACHES!!On this stuff for about a year, lost weight last summer, had energy though. Now I've been getting terrible headaches. Thought I've had a sinus infection for 1.5 months-Didnt take claritan-D on Saturday(no headache)Didnt take it yesterday(no headache),took it today(have a terrible headache).I feel awful, like im gona die.Now iget up@nite dizzy,seeing things, like little dots floating. Iwont use this anymore if I dont take2mro & dont get a headache.		F	33	1.5 years		9/19/2008
3	Seasonal Allergies (Fall)	I've taken this for at least five years during the fall season. It usually works fairly well at surpressing my hayfever but this year the side affect are terrible. Increased BP, racing heart, constipation, depression, anxiety, moodiness bording on constant irritation of all people. Jittery, not a buzzed feeling buta constant state of surrealism. I did not have muscle spasms but felt like I was walking funny, as if my knees and hips had suddenly become bolted together. Also a bit of paranoia. The only reason I guessed this was the problem was that a friend had mentioned he had experienced the same thing, I just thought I was going nuts.	While this drug is not for me I think it is worth trying. Just be very careful and pay attention to your overall moodiness or mental state.	M	42	3 weeks		9/12/2008
3	Allergies	Horrible constipation!! I use to be very regular, and now I have not gone in a week. I drink about a half gallon of water daily and take in 40 grams of fiber and still no relief.	Works great for my seasonal allergies. I am going to start taking laxatives once a week. I am lucky because I only have seasonal allergies Sept-Oct, so taking laxatives for that short period of time is a good solution for me.	M	36	9 days		9/12/2008
5	severe allergies/asthma	I am trying to no take singulair and advair anymore due to weight gain. Woke up this morning & thought I'd try Claritin D 24 hour. Within 1 hour symptoms were completely gone but the side effect set in. Tingling chills all over my body, clinched jaw, heart palpitations and overall jittery feeling. I tried to take a nap around 3PM and barely slept, waking up sweaty. Definitely noticed decreased appetite in this short time. Glad I am off work today, as I don't think I could concentrate very well. I feel like I am on drugs...I see why they use this stuff to make meth now.	I will continue to try this over the weekend, maybe take 1/2 of the 24 hour pill tomorrow and see how that goes. Quite honestly, the decreased appetite is appealing to me.	F	32	1 days		8/21/2008
4	Seasonal Allergies	I slept fine, but found it very easy to wake up in the morning. Not as hungry. Full of energy. Slight wheeziness sometimes, but not when you'd expect - I could jog fine but would get wheezy at random times.	Can you imagine a drug that makes you have more energy, need less sleep and not want to eat? Part of me wants to take this drug every day for the rest of my life. But one day I ran out, and just took a regular claritin instead. (I usually take it before bed). The next morning I had a terrible time getting up and was a zombie all day. The fact that it has such a huge effect on me scared me a little bit. Don't know that I'll keep taking it. It's unnatural how it effects me.	F	26	6 months		8/18/2008
5	itchy eyes, headache, congestion	decreased appetite, increased focus and motivation, increased mood, lighter wallet.	The first day on the med I felt wonderful, slightly hyperactive/verbal, but overall I felt great! I am already a happy person, but it made everything seem brighter and better. It helped immediately (within 30 mminutes) with my sinus headache, my itchy/watery eyes and congestion. I have noticed a decrease in appetite, but nothing worthy of concern, if anything that is a beneficial side-effect. It increased my motivation, increased my ability to focus and concentrate, and I think it even increased the speed at which I think and solve problems. I have not taken the med today and already notice my sinus headache and itchy eyes coming back. I think I am having problems as a result of mold, so hopefully by taking care of that I can stop taking the Claritin-D. I buy the generic version of it at the pharmacy and it is still outrageously priced I think that is the main downfall!	F	26	4 days		8/6/2008
2	sinus congestion, drainage	nausea, short of breath, moodiness, irritability, sinus pain, anxiety	I felt like I was losing my mind. I had been taking Drixoral, but cannot get it anymore. I assumed the claritin d would be comparable. The pseudoephedrine is the same for both. I never thought the antihistamine could make such a difference. After not taking it for one day, I already feel so much better.	F	42	15 days		8/1/2008
3	allergies, sinus pressure	I have never had a problem with Claritin-D. The only side effects I noticed were that it made me hyper and feel somewhat "high" for awhile, and then I was tired once the high wore off. However, these side effects were not so bad that they interfered with daily life or made me want to stop taking the drug. However, I don't know if the drug is very helpful either... I still have symptoms like sinus pressure, post-nasal drip... but the symptoms are much less severe than they are when not taking the drug. have been taking claritin D on and off for about 7 months.	satisfied overall.	F	22	7 months		7/26/2008
1	allergies	Am pretty sure that my husband became violent because of this and beat me for no reason in front of our small children. He is usually a calm person. This happened many years ago.		M	40	5 years		7/20/2008
1	sinus pressure with dizziness	extreme anxiety, chest discomfort and palpatations, constant episodes of sweating day and night, insomnia, feeling of irritation in chest and throat.	I probably shouldn't have been taking this drug because my symptoms were sinus pain and pressure only and not classic allergy symptoms like watery eyes, sneezing, and runny nose. My syptoms started after taking this drug for only 2 days. Has anyone ever had sudden sinus pain and pressure that came on in less than a minute or two?	M	45	3 days		7/13/2008 Email
4	allergies-all types	back pain!	Although it helps the allergies, noticed I was having back pain. Someone suggested it was the Claritin-D. I never dreamed....	F	43	4 months		7/8/2008 Email
1	Runny nose,Allergy	Can not sleep. Very shaky. Heart pulpitations.	I will not ever take this medication again! I'm a diebetic and can't tell the difference between a low sugar and the side effect of this medication.	F	52	2 days		7/3/2008
3	Itchy, runny allergy eyes	insomnia, frequent awakenings, vivid dreams, nightmares, constipation, anger, moodiness (maybe due to exhaustion from insomnia)	Thank you for this forum. I thought I was losing my mind! I take Ambien, which has been a godsend for me. I used to have difficulty falling asleep and staying asleep. Over the last week, my troubles have returned, but they felt different. Plus, I had vivid disturbing dreams and nightmares. The Claritin really helped my allergies, but I have to choose sleep. Bye Claritin!	F	39	10 days		6/27/2008
1	Allergies	Terrible Headache. Insomnia despite feeling sleepy at the same time. Extreme fatigue and flu-like symptoms, loose stools. Stomach cramps and nausia. Painful leg cramps and heaviness in the legs. Heart palpitations and sensitivity to light. Extreme drowsniness, dizziness onset within 12 hours after taking it.	This medicine did not help to control my watery itchy eyes.	F	34	1 days		6/23/2008
3	allergies/nasal stuffiness	For 2 1/2 years I suffered from low back pain, before a co-worker said he was having the same symptoms from taking Allegra D and suggested mine might be connected to Claritin D. I went to a regular MD, a chiropractor, a physical therapist and an acupuncturist for two years, and none of them could figure out what was causing the pain. Within two weeks of stopping the Claritin D, my low back pain was nearly gone.	While the medication took care of my allergies pretty well, the low back pain I suffered from it wasn't worth it. I'm very disappointed how difficult it is to find this information. I feel like ALL side effects should be listed in the packaging, even if it only affects 2% of people tested. Why should those 2% suffer unneccessarily just to save space on the packaging?	F	48	2.5 years		6/11/2008
3	Walitin-D	fatigue, dry mouth, increased thirst	I am not sure the trade off was worth it.	F	25	1 days		6/7/2008

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Average rating for drug: 2.5. This page is printer-friendly; use landscape print with background color turned on.

Key to ratings: 5-Very Satisfied: this medicine cured me or helped me a great deal. 4-Satisfied: this medicine helped. 3-Somewhat Satisfied: this medicine helped somewhat. 2-Not Satisfied: this medicine did not work to my satisfaction. 1-Dissatisfied: I would not recommend taking this medicine.

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