Temporarily relieves sneezing itchy and watery eyes runny nose and itchy throat and nose.Allegra Allergy provides fast strong non-drowsy noticeable relief of indoor and outdoor allergy symptoms. Relief that starts in just 1 hour and stays strong for up to 24 hoursContains Fexofenadine HCL 180mg/AntihistamineCompared to Allegra Allergy Relief.