Allegra, Claritin and Zyrtec are all antihistamines used to take care of allergy symptoms just like a runny nose, sneezing and itchy or watery eyes. Allegra is made up of fexofenadine hydrochloride as its active ingredient and is available in the shape of the pill or capsule for oral usage. https://paulm900uoh3.oblogation.com/profile