Claritin-D for Allergic Rhinitis User Reviews

• Jef...
• September 29, 2013

"On its effectiveness, I rate it a 10 because it will completely eradicate all your allergy symptoms. However, the undesirable side effects lower the rating to a 3. It will keep you up all night long. It also made me jittery and nervous, as if I'd drank a dozen cups of coffee."

• Bru...
• Taken for less than 1 month
• September 12, 2018

"Amazing at clearing up symptoms. However, I took this at around 10 a.m. with a coffee and was up all night. It’s 24 hours later, and I’m still wide awake and jittery, even after popping a Valium around 2 a.m. I already have sleep/anxiety issues, so no more Claritin-D for me. The nice thing is my house is spotless after going into some kind of manic cleaning mode while hopped up on Claritin-D."

• Tex...
• March 19, 2011

"I have suffered from sinus allergies for at least five years. Just recently, fluid behind my eardrum made me dizzy. After five days of taking this, no sinus, no allergies, and no dizziness. Been to ENT, been to allergist, and used their high-dollar medicines, none really helped. This, on the 5th day, is the best day I have had in a long, long, long time. Great medicine, just hope it keeps on working. So far, no side effects."

• EPa...
• April 24, 2020

"I took the Claritin-D pill at 3 pm, and right now it’s 5:29 am. I cannot fall asleep! Feeling anxious, even trying to force my sleep, I can’t. Took a sleeping aid and nothing. I feel like my breathing cuts off. Also, I took the 24-hour one. BAD IDEA! I read people here took the 12-hour and can’t sleep. I guess I’ll be like this for 3 days. If you have allergies or congestion, just buy the regular ones, not the D! And use saline spray for the nose."

• tex...
• Taken for less than 1 month
• January 20, 2019

"Definitely clears up the congestion and allergy symptoms, which is why I'm giving it a 2. The side effects, however, are terrible. It makes me so jittery and unable to sleep, it's not worth taking. It took me a few times to make the connection, but now I know it's the Claritin-D."

• Cou...
• Taken for less than 1 month
• April 9, 2020

"Awful. Immediately after I took it, I felt nauseous, an extreme sadness, dizzy, and anxious. A few hours later, my mood went back up, but then I became jittery and had insomnia. Didn’t get a single hour of sleep. I do not recommend."

• Vet...
• Taken for less than 1 month
• June 6, 2018

"I took Claritin-D about five pm. At 11 pm, I went to bed, but my heart was racing, I was jittery, and absolutely wide awake. My mouth was so dry it was uncomfortable. Watched the sunrise. Was still jittery, irritable, and anxious throughout the entire next day. It was about nine pm (so over 24 hours later) that I started feeling back to normal. Absolutely horrible. If I hadn’t read the other comments on this site, I would have probably gone to the ER. Will never take pseudoephedrine again."

• All...
• Taken for less than 1 month
• October 10, 2018

"This Claritin-D is good for nasal congestion and allergies. However, I have about 2-3 hours of sleep per night. The worst side effect is that it restricts urinary flow, and it makes the urine cloudy. It caused blurry vision and raised blood pressure (maybe due to the pseudoephedrine?). I thought I was having kidney failure with the restricted urination. Be careful when taking this medication."

• Veg...
• August 23, 2017

"Worked great for my sinus and allergies. Had head and throat issues so bad, so the pharmacist recommended Claritin-D 24 hr. I made the mistake of taking it at noon, and it is now 6 a.m. and I'm still awake. Wired and jittery, and my anxiety is raging. I can't sit still... not worth the lack of sleep."

• Tan...
• Taken for less than 1 month
• June 17, 2020

"Like many have said, it definitely cleared up the horrible sinus pressure I was having, but the trade-off was spending the entire day feeling 10x more miserable because of the crazy side effects. It made me feel drowsy, woozy, and extremely nauseous, while also feeling anxious, unable to concentrate, and unable to sleep all at the same time. I also had a sensation of pressure on my chest and felt like my heart was racing. Never again."

• sle...
• Taken for less than 1 month
• April 24, 2018

"Took Claritin D yesterday at 9:00 am and haven't slept since. It's 10:49 am the next day, and I'm miserable at work. Was wide awake all night. Thought I was going crazy until I found these reviews. Wish I checked this before buying it!"

• Man...
• Taken for less than 1 month
• September 29, 2019

"I tried this for my bad allergies. It did help with my nose itching. I had bad side effects that outweighed any benefits. I have been antsy, dizzy, my heart has been pounding, nauseated, and overall just not feeling well. I can’t wait for it to be out of my system. I won't take it again."

• Fir...
• September 1, 2009

"I took this at 7 am to try and fix itchy eyes. So far, 4 hours later, there is still slight itchiness and wateriness. Worse is the side effects. I feel slightly jittery, yet mentally it feels like I've taken a tranquilizer. I don't feel I'm safe to drive. Basically, if you are a first-time user of the 24-hour version, don't try it on a day you have to use a car."

• Ten...
• Taken for 5 to 10 years
• October 10, 2015

"Have terrible post-nasal drip. Claritin is the only thing that works. No generics as good. Do find that the med works half the time it says it does; 12 hr works for 6, 24? About 8. I take 12 hr twice a day in spring and fall. Deal with the hrs it's not working. Doesn't interfere with my sleep."

• So...
• Taken for less than 1 month
• September 10, 2018

"So I took this product for the first time, and all I can say is they need to find a way to create medicine that side effects aren't worse than what you're using it to treat. I have major allergies, but I'd rather suffer with the stuffy, runny nose, sinus headache, itchy, watery eyes, and cough than to ever take this medication again. It's just not worth all the side effects."

• Ano...
• Taken for 2 to 5 years
• September 10, 2019

"My experiences have been hit or miss. Sometimes I will take Claritin-D and immediately feel better. Other times, like this one now that has led me to this thread, I have had congestion and watery eyes for 24 hours. Now, after taking Claritin-D, my nose won’t stop running, and my eyes are even worse. This has happened before, so I will be switching allergy medications soon."

• Sam...
• Taken for less than 1 month
• March 9, 2021

"Took it for a severe seasonal allergy attack about 9:30 this morning. It knocked out the allergies but knocked me out also. It’s 3:55 and I just woke up but my head is foggy, body is wobbly, and I can hear the blood pulsing through my head. Probably about to go back to sleep, staying awake is taking too much effort. Too strong for me. Husband takes it regularly with no side effects."

• Anonymous
• April 19, 2015

"Very effective at eliminating allergies, but will keep you awake all night long. I took the 24-hour one in the early morning, 7:30 am, and laid in bed for 5 hours before I could fall asleep."

• no...
• Taken for less than 1 month
• March 22, 2016

"Great at eliminating allergies, but also eliminates sleep. I haven't slept in 4 nights, and after googling, now I see why! Not worth it."

• Jen...
• August 17, 2017

"It worked for the allergies, but I cannot sleep. I took it early yesterday morning around 7, it is 1:15 am now. I tried melatonin and Benadryl, nothing! Never, never again!"

• Stu...
• September 19, 2008

"Claritin-D is the only thing that helps my husband this time of the year. He takes the 24-hour pills."