Allegra-d is an combination of fexofenadine and pseudoephedrine is used to treat sneezing, cough, runny or stuffy nose, itchy or watery eyes, hives, skin rash, itching, and other symptoms of allergies and the common cold
Zyrtec-D contains the same antihistamine found in regular Zyrtec, plus the decongestant pseudoephedrine. Zyrtec-D is prescribed to relieve the symptoms of hay fever and similar allergies, whether seasonal or year-round.
