Starts Strong. Stays Strong.
All-day Relief
Allegra starts working in one hour and delivers 24-hour relief from allergy symptoms with full prescription strength available over the counter.
Relieves Multiple Types of Allergy Symptoms
Get symptom relief of runny nose, sneezing, itchy nose or throat, and itchy, watery eyes from indoor and outdoor allergens.
Won’t Cause Drowsiness
Allegra allergy medicine won’t cause drowsiness, so you don’t have to worry about feeling tired after you take it. Use as directed and live your greatness.
Frequently Asked Questions.
What does Allegra do?
Allegra 24-hour allergy medication is indicated for the temporary relief of symptoms due to hay fever or other upper respiratory allergies, which can be caused by an allergic response to indoor or outdoor allergens.
How long does it take for Allegra to work?
Allegra adult allergy medicine starts working in one hour to give you fast*, non-drowsy, 24-hour relief of allergy symptoms including sneezing, runny nose, itchy, watery eyes, and itchy nose or throat.
*Starts working in one hour
How is adult Allegra different from other antihistamines?
Adult Allegra starts working in one hour and has no drowsy warnings. That means you can take Allegra any time for a full 24 hours of relief.
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