Allegra Side Effects

Generic Name: fexofenadine

Please note - some side effects for Allegra may not be reported. Always consult your doctor or healthcare specialist for medical advice. You may also report side effects to the FDA at http://www.fda.gov/medwatch/ or 1-800-FDA-1088 (1-800-332-1088).

Side Effects of Allegra - for the Consumer

Allegra

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Allegra:

Dizziness; headache; stomach upset.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); earache; fever; severe or persistent coughing or vomiting.

Allegra-D Extended-Release Tablets (12 Hour)

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Allegra-D Extended-Release Tablets (12 Hour):

Dizziness; dry mouth; headache; nausea; nervousness; trouble sleeping.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; difficult urination; fast/irregular heartbeat; hallucinations; mental or mood changes; seizures; shaking or tremor.

Allegra-D 24 Hour Extended-Release Tablets (24 Hour)

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Allegra-D 24 Hour Extended-Release Tablets (24 Hour):

Dizziness; dry mouth; headache; nausea; nervousness; trouble sleeping.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); chest pain; difficult urination; fast/irregular heartbeat; hallucinations; mental or mood changes; seizures; involuntary shaking or tremor.

Allegra ODT Orally Disintegrating Tablets

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Allegra ODT Orally Disintegrating Tablets:

Dizziness; headache; stomach upset.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); earache; fever; severe or persistent coughing or vomiting.

Allegra Suspension

All medicines may cause side effects, but many people have no, or minor, side effects. Check with your doctor if any of these most COMMON side effects persist or become bothersome when using Allegra Suspension:

Dizziness; headache; stomach upset.

Severe allergic reactions (rash; hives; itching; difficulty breathing; tightness in the chest; swelling of the mouth, face, lips, or tongue); earache; fever; severe or persistent coughing or vomiting.

Allegra Side Effects - for the Professional

Allegra

The most common adverse reactions (≥ 5%) are headache and vomiting (6)

Side Effects by Body System

Gastrointestinal

Gastrointestinal side effects have included nausea and dyspepsia in approximately 1.5% of patients.

Nervous system

Nervous system side effects have included drowsiness in 1.3% of patients. Dizziness and headache have also been reported.

Genitourinary

Genitourinary side effects have included dysmenorrhea at a rate of 1.3%.

Hypersensitivity

Hypersensitivity side effects have included rare reports of rash, urticaria, and pruritus. Other hypersensitivity reactions have included angioedema, chest tightness, dyspnea, flushing, and systemic anaphylaxis.

Respiratory

Respiratory side effects have included nasopharyngitis and upper respiratory tract infection.

Musculoskeletal

Musculoskeletal side effects have included myalgia, back pain, and pain in extremity.

Disclaimer: Every effort has been made to ensure that the information provided is accurate, up-to-date, and complete, but no guarantee is made to that effect. In addition, the drug information contained herein may be time sensitive and should not be utilized as a reference resource beyond the date hereof. This information does not endorse drugs, diagnose patients, or recommend therapy. This drug information is a reference resource designed as supplement to, and not a substitute for, the expertise, skill , knowledge, and judgement of healthcare practitioners in patient care. The absence of a warning for a given drug or drug combination in no way should be construed to indicate that the drug of drug combination is safe, effective, or appropriate for any given patient. Drugs.com does not assume any responsibility for any aspect of healthcare administered with the aid of information provided. The information contained herein is not intended to cover all possible uses, directions, precautions, warnings, drug interactions, allergic reactions, or adverse effects. If you have questions about the drugs you are taking, check with your doctor, nurse, or pharmacist.