The difference between Claritin® and Claritin-D®/Allegra® and Allegra-D®
By Staff Writer
Claritin (generic name loratadine) and Allegra (fexofenadine) are antihistamines that work equally well at relieving allergy symptoms such as runny nose, sneezing, and watery eyes. People with allergy symptoms as well as a stuffy nose may benefit from the products Claritin-D or Allegra-D, in which the antihistamines are combined with the decongestant pseudoephedrine. These combination products should be relatively free of side effects, although the decongestant may cause insomnia for some people. If you have high blood pressure, an overactive thyroid or an enlarged prostate consult your doctor before taking pseudoephedrine-containing medicines like Claritin-D or Allegra-D. Claritin is available over-the-counter while Claritin-D and Allegra-D are available behind-the-counter because they contain pseudoephedrine.
Sources: Drug Facts and Comparisons. Facts & Comparisons, 2006.Micromedex® Healthcare Series. Thomson Micromedex, 2006.Claritin product information. Schering-Plough Healthcare Products Inc., 2006.This answer prepared 9/7/2000.This information updated 12/5/2006.