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   What are the side effects of Allegra?

   • While it’s generally well tolerated, it may cause side effects for some people. Common Allegra side effects include headache, indigestion, and dry mouth. Some people also report nausea, constipation, and weight gain with Allegra, but these haven’t been confirmed as side effects by clinical trials.

   7 Allegra Side Effects You Should Know About - GoodRx

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   Can Allegra cause a headache?

   • Headache is one of the most common Allegra side effects. In clinical trials, a little over 10% of adults taking Allegra for seasonal allergies reported a headache. Experts don’t know why this side effect happens. But keep in mind that headache is also a common allergy symptom.

   7 Allegra Side Effects You Should Know About - GoodRx

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   What are the side effects of Allegra (fexofenadine)?

   • Allegra (fexofenadine) is an over-the-counter (OTC) antihistamine often taken to relieve allergy symptoms. While it’s generally well tolerated, it may cause side effects for some people. Common Allegra side effects include headache, indigestion, and dry mouth.

   7 Allegra Side Effects You Should Know About - GoodRx

   www.goodrx.com/allegra/common-side-effects

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   Does Allegra make you Dizzy?

   • Dizziness is another possible Allegra side effect. While unlikely with Allegra, it’s possible for any antihistamine to make you feel dizzy. Taking Allegra at night may help prevent you from experiencing dizziness during the day. If you do feel dizzy, find a safe place to sit and lie down until it passes.

   7 Allegra Side Effects You Should Know About - GoodRx

   www.goodrx.com/allegra/common-side-effects

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2. www.drugs.com › sfx › allegra-side-effectsAllegra Side Effects: Common, Severe, Long Term - Drugs.com

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   Oct 3, 2023 · Serious side effects of Allegra. Along with its needed effects, fexofenadine (the active ingredient contained in Allegra) may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

   • 6.8/10 (85)

3. www.goodrx.com › allegra › common-side-effects7 Allegra Side Effects You Should Know About - GoodRx

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   • Headache. Headache is one of the most common side effects of Allegra. In clinical trials, a little over 10% of adults taking Allegra for seasonal allergies reported a headache.
   • Indigestion. Indigestion is a common side effect for many medications. This feeling of stomach discomfort was reported by over 4% of people taking Allegra for chronic hives during clinical trials.
   • Back pain. Back pain is another possible Allegra side effect. In clinical trials, a little over 2% of people with seasonal allergies reported back pain when taking Allegra.
   • Dry mouth. Allegra has mild anticholinergic effects. Anticholinergics can reduce the amount of saliva your body makes. This can lead to dry mouth. This Allegra side effect can be bothersome.

4. www.mayoclinic.org › drugs-supplements › fexofeFexofenadine (Oral Route) Side Effects - Mayo Clinic

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   Jun 1, 2024 · Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention. Check with your doctor immediately if any of the following side effects occur:

5. www.drugs.com › allegraAllegra Uses, Dosage & Side Effects - Drugs.com

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   Feb 29, 2024 · Allegra is used to treat the symptoms of seasonal allergies (hay fever) in adults and children. Allegra is also used to treat skin itching and hives caused by a condition called chronic idiopathic urticaria in adults and children.

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   • Ask a doctor or pharmacist if it is safe for you to take Allegra if you are allergic to any drugs, or if you have kidney disease.FDA pregnancy cate...
   • Use Allegra exactly as directed on the label, or as prescribed by your doctor. Do not use in larger or smaller amounts or for longer than recommend...
   • Since cold or allergy medicine is taken as needed, you may not be on a dosing schedule. If you are taking the medication regularly, take the missed...
   • Seek emergency medical attention or call the Poison Help line at 1-800-222-1222.Overdose symptoms may include dry mouth, dizziness, or drowsiness.
   • Before taking this medication, tell your doctor if you regularly use other medicines that make you sleepy (such as cold or allergy medicine, sedati...

6. www.mayoclinic.org › drugs-supplements › fexofeFexofenadine (Oral Route) Side Effects - Mayo Clinic

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   Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects.

7. www.webmd.com › drugs › 2Allegra Oral: Uses, Side Effects, Interactions ... - WebMD

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   Side Effects. Cough, fever, or stomach upset may occur. If any of these effects last or get worse, tell your doctor or pharmacist promptly. If your doctor has prescribed this medication,...

8. my.clevelandclinic.org › health › drugsFexofenadine (Allegra): Uses & Side Effects - Cleveland Clinic

   my.clevelandclinic.org › health › drugs

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   FEXOFENADINE (fex oh FEN a deen) prevents and treats allergy symptoms, such as red, itchy eyes, sneezing, a runny or stuffy nose, or hives. It works by blocking histamine, a substance released by the body during an allergic reaction. It belongs to a group of medications called antihistamines.