ALLERGY RELIEF Side Effects by Likelihood and Severity

COMMON side effects

If experienced, these tend to have a Severe expression i

    Sorry, we have no data available. Please contact your doctor or pharmacist.

    If experienced, these tend to have a Less Severe expression i

      Sorry, we have no data available. Please contact your doctor or pharmacist.

      INFREQUENT side effects

      If experienced, these tend to have a Severe expression i

        Sorry, we have no data available. Please contact your doctor or pharmacist.

        If experienced, these tend to have a Less Severe expression i

        • an infection due to a virus
        • throat irritation
        • inflammation of the tissue lining the sinuses
        • dry mouth
        • indigestion
        • pain with menstruation
        • backache
        • muscle pain
        • drowsiness
        • dizziness
        • low energy
        • a skin rash
        • headache
        • nausea
        • vomiting

        RARE side effects

        If experienced, these tend to have a Severe expression i

        • a bacterial infection of the middle ear
        • a common cold
        • hives
        • a significant type of allergic reaction called anaphylaxis
        • a hypersensitivity reaction to a drug

        If experienced, these tend to have a Less Severe expression i

        • nightmares
        • agitation
        • an earache
        • itching
        • difficulty sleeping
        • fever
        • pain
        • cough
        • stomach cramps
        • nervousness

        Free RX Coupon

        Save up to 80% on your prescriptions.

        Available coupons

        Save up to 80% on your prescription with WebMDRx

        Drug Survey

        Are you currently using Allegra oral?

        This survey is being conducted by the WebMD marketing sciences department.

        Selected from data included with permission and copyrighted by First Databank, Inc. This copyrighted material has been downloaded from a licensed data provider and is not for distribution, except as may be authorized by the applicable terms of use.

        CONDITIONS OF USE: The information in this database is intended to supplement, not substitute for, the expertise and judgment of healthcare professionals. The information is not intended to cover all possible uses, directions, precautions, drug interactions or adverse effects, nor should it be construed to indicate that use of a particular drug is safe, appropriate or effective for you or anyone else. A healthcare professional should be consulted before taking any drug, changing any diet or commencing or discontinuing any course of treatment.