Allegra-D tablets start working in 45 minutes for relief from sneezing, runny nose, itchy and watery eyes, itchy nose or throat, plus nasal and sinus congestion, and sinus pressure. One pill provides 24-hour allergy and congestion relief that doesn't make you drowsy. Allegra-D tablets start working in 45 minutes for relief from sneezing, runny nose, itchy and watery eyes, itchy nose or throat, plus nasal and sinus congestion, and sinus pressure. One pill provides 12-hour allergy and congestion relief that doesn't make you drowsy. Allegra is an antihistamine used to treat seasonal allergies without causing drowsiness. Allegra-D combines an antihistamine and decongestant to relieve allergies and congestion, but shouldn't be used long-term. Allegra-D Tablet ER is used in the treatment of Sneezing and runny nose due to allergies. Find Allegra-D Tablet ER uses, composition, side-effects, price, substitutes, drug interactions, precautions, warnings, and expert advice. Allegra-D (fexofenadine and pseudoephedrine) is used to treat sneezing, hives, runny or stuffy nose and other symptoms of allergies. Includes Allegra-D side effects, interactions and indications. Learn about Allegra-D (fexofenadine / pseudoephedrine) usage and dosing. Read the latest news and reviews about the drug as well as potential side effects and popular alternatives. Take Allegra-D 24 Hour Allergy and Congestion on an empty stomach, at least 1 hour before or 2 hours after a meal. Take Allegra-D 24 Hour Allergy and Congestion only with water. Allegra-D ® tackles tough allergy symptoms and nasal congestion, so you can breathe easy and feel good all day. Whether you're dealing with sinus pressure, itchy eyes, or that frustrating blocked nose, this 24-hour dose delivers relief from eight allergy symptoms with just one tablet. Allegra-D ® tackles tough allergy symptoms and nasal congestion, so you can breathe easy and feel good all day. Whether you're dealing with sinus pressure, itchy eyes, or that frustrating blocked nose, this 12-hour dose delivers relief from eight allergy symptoms with just one tablet. Allegra-D tablets start working in 45 minutes for relief from sneezing, runny nose, itchy and watery eyes, itchy nose or throat, plus nasal and sinus congestion, and sinus pressure. One pill provides 12-hour allergy and congestion relief that doesn't make you drowsy.