Allegra® 24 Hour Tablets

  • Non-Drowsy Allergy Relief
  • Age 12 years +

Get all-day relief from tough allergy symptoms with Allegra® 24 Hour.

Relieve your allergy symptoms like runny nose, sneezing, itchy, watery eyes, itchy nose, or itchy throat. Allegra® 24 Hour starts working fast, lasts all day, and won't leave you feeling drowsy.



 24-hour relief

 Relieves seasonal allergies caused by grass, trees, ragweed and pollen


6-count tablets | 12-count tablets | 30-count tablets | 48-count tablets | 72-count tablets


Woman smiling and holding a lavender bouquet in a lavender field.

Product Information

    Adults and children 12 years of age or older: The recommended dose 1 tablet (120 mg) once daily with a glass (250 ml) of water.

    Do not use for a long period of time unless advised by a doctor.

    Do not use Allegra® 24 Hour if:

    • You have ever had an allergic reaction to this product or any of its ingredients

    Talk to your doctor before use if you:

    • Have kidney disease. Your doctor should determine if you need a different dose
    • Any health conditions or problems you may have
    • Are pregnant or breastfeeding
    • Have kidney disease
    • Are 65 years of age or older
    • Taking any medication (including any drugs, vitamins, minerals, natural supplements or alternative medicines)

    When using this product:

    • Do not take more than directed
    • Do not take within 2 hours of taking aluminum or magnesium antacids
    • Do not take with fruit juices

    Stop use and ask a doctor if an allergic reaction to this product occurs. Seek medical help right away.

    Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.

    To help avoid side effects and ensure proper use, talk to your healthcare professional before you take Allegra® 24 Hour.

    The following may interact with Allegra® 24 Hour:

    • Antacids that contain aluminum or magnesium hydroxide, as they may alter the effectiveness of Allegra® 24 Hour (do not take within 2 hours of taking an antacid)
    • Fruit juices
    • Store between 15° and 30°C, in a dry place.
    • Keep out of reach and sight of children.


Woman smelling flower on a sunny day

Active Ingredients

Fexofenadine HCl 120 mg (in each tablet)

Allegra® 24 Hour blocks the natural substance known as histamine (a chemical released by your immune system) that the cells of your body make during an allergic reaction.

Purpose: Antihistamine

Inactive ingredients

Non-medicinal ingredients: colloidal silicon dioxide croscarmellose sodium, hydroxypropyl methylcellulose, iron oxide, magnesium stearate, microcrystalline cellulose, polyethylene glycol, povidone, pregelatinized starch and titanium dioxide.

Frequently Asked

  • No. Use Allegra® 24 Hour only as directed. Always read and follow the label.

  • If you experience allergy symptoms while pregnant or breastfeeding, consult with your healthcare professional.

  • Allegra® 24 Hour tablets are vegetarian. They do not come from any animal origin. They do not contain casein, eggs, dairy, lactose, iodine, peanuts, shellfish, soy, tree nuts, or whey.

  • Allegra® 24 Hour should be used as directed according to the product label. Maximum effectiveness has been demonstrated when taken with water. Taking Allegra® with fruit juices may reduce the effectiveness of the medication.

  • Do not cut or break Allegra® 24 Hour in half. Use only as directed. Always read and follow the label.

  • No. Allegra® 24 Hour is approved for human use only. Please refer to the product label and use as directed.

  • Yes. Allegra® Tablets are lactose free.

  • Yes. Allegra® Tablets are gluten free.

Contact Us

Have questions or comments?

Call toll-free 1-800-636-3664 or Contact Us Online.


Get tips for managing indoor and outdoor allergies

Also available in a 12-hour formula

Product shot of Allegra® 12 Hour Tablets

Allegra® 12
Hour Tablets

Get relief from tough year-round allergy symptoms* every day with Allegra® 12 Hour tablets for adults and children 12 years of age and over.