Allegra® (fexofenadine hydrochloride) is an antihistamine used for:
It comes in the form of tablets, orally disintegrating tablets (ODTs), and an oral suspension (liquid). Although it was originally a prescription medicine, Allegra is now available over-the-counter (OTC).
At this time, all of the current over-the-counter Allegra products are labeled for the treatment of allergies only. However, the manufacturer has received approval for over-the-counter use of the medication for hives. It is probably just a matter of time before Allegra products labeled for hives treatment become available.
Allegra works by blocking the effects of histamine, a chemical that is released when you come into contact with something you're allergic to. When histamine is blocked, certain allergy symptoms (such as sneezing, runny nose, and irritation of the throat and eyes) are reduced.
Although not everyone who takes Allegra will develop side effects, adverse reactions are possible. In clinical studies, common side effects included:
(Click Allegra for more information on this medicine, including the various strengths, how to take it, why it may not be suitable for certain people, and more.)