Fexofenadine
Generic name: fexofenadine hydrochloride · Brand names: Allegra Allergy 24 Hour
Information sourced from FDA Structured Product Labeling, updated June 1, 2026.
What is it used for?
Antihistamine
How to take it
adults and children 12 years of age and over take one 180 mg tablet with water once a day; do not take more than 1 tablet in 24 hours children under 12 years of age do not use adults 65 years of age and older ask a doctor consumers with kidney disease ask a doctor
Warnings
Do not use if you have ever had an allergic reaction to this product or any of its ingredients. Ask a doctor before use if you have kidney disease. Your doctor should determine if you need a different dose. When using this product do not take more than directed do not take at the same time as 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. If pregnant or breast-feeding, ask a health professional before use. Keep out of reach of children. In case of overdose, get medical help or contact a Poison Control Center right away.
All information on this site is provided “as-is” for informational purposes only and is not a substitute for medical advice or treatment. You should consult with a medical professional if you have any questions about your health. Source: FDA Structured Product Labeling.