Claritin-D 24-Hour and Claritin-D 12-Hour are brand names for tablets with both loratadine and pseudoephedrine. Because it contains pseudoephedrine (a decongestant), Claritin-D is more useful than Claritin for people who also have nasal or sinus congestion in addition to itchy or watery eyes, runny nose, and sneezing.

Answer: Yes, it is ok to take the medication for an extended period of time. However, the "D" formulation has a decongestant (which is what the 'D' represents in the name) and this can raise your blood pressure. I would recommend discussing with your doctor if this will be a possible problem for you.

Claritin-D has an average rating of 5.6 out of 10 from a total of 71 reviews on Drugs.com. 43% of reviewers reported a positive experience, while 38% reported a negative experience.

Take this medication by mouth as directed by your doctor, usually twice daily (every 12 hours) with a full glass of water. Swallow the tablets whole. Do not crush or chew the tablets. Doing so can release all of the drug at once, increasing the risk of side effects.

The irritating symptoms associated with allergies are usually caused by a type of protein in the bloodstream called histamine. By blocking this chemical's action, antihistamines can limit the negative effects of allergies and respiratory viruses.

This medication is an antihistamine that treats symptoms such as itching, runny nose, watery eyes, and sneezing from "hay fever" and other allergies. It is also used to relieve itching from hives. Loratadine does not prevent hives or prevent/treat a serious allergic reaction (anaphylaxis).

In addition, do not take loratadine (Claritin) while taking erythromycin (an antibiotic), ketoconazole (an antifungal drug), cimetidine (a heartburn medicine), or clarithromycin (an antibiotic) due to potential drug interactions and an increased risk of side effects.

Common side effects of Claritin-D 24 Hour include: headache, insomnia, and xerostomia. Other side effects include: fatigue, and nervousness.

Common Claritin side effects include headache, sleepiness, and fatigue. Less commonly, some people may experience dry mouth, dizziness, or an upset stomach. Claritin side effects are typically mild and can be managed at home. If they become too bothersome, stop taking Claritin and talk to your healthcare provider.

Fast Relief of Nasal Congestion For those with nasal congestion symptoms, Claritin-D ® is an option that starts working on nasal congestion in as little as 30 minutes.

Fast Relief of Nasal Congestion For those with nasal congestion symptoms, Claritin-D ® is an option that starts working on nasal congestion in as little as 30 minutes.

There is no information to indicate that abuse or dependency occurs with loratadine. Pseudoephedrine, like other central nervous system stimulants, has been abused. At high doses, subjects commonly experience an elevation of mood, a sense of increased energy and alertness, and decreased appetite.