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-D Tablet ER is used to relieve allergy and cold symptoms like sneezing, runny nose, nasal congestion, and itchy or watery eyes. This allergy relief medicine also reduces sinus pressure and helps you breathe easier. 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. 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 (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. 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 ® 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 24 Hour an extended-release tablet tablet taken once daily and is used to treat sneezing, runny or stuffy nose, itchy or watery eyes, hives, skin rash, itching, and other symptoms of allergies and the common cold. 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 (Fexofenadine HCl and Pseudoephedrine HCl) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources.