Always follow your doctor’s prescription for the correct fexofenadine dosage. Typical adult doses range from 60mg to 180mg daily, usually taken once or twice a day. Children’s dosages vary significantly by age and weight; consult your pediatrician.
Common Side Effects
- Headache Drowsiness Dry mouth Nausea Diarrhea
These are usually mild and temporary. If you experience any severe or persistent side effects, contact your doctor immediately.
Less Common but Important Side Effects
Serious allergic reactions (anaphylaxis): Seek immediate medical attention if you experience swelling of your face, lips, or tongue, difficulty breathing, or a rapid heartbeat. Heart rhythm problems: Though rare, fexofenadine may affect heart rhythm in some individuals. Discuss your heart health with your doctor before taking fexofenadine.
Remember to inform your doctor about all medications, including over-the-counter drugs and supplements, you are currently taking. This helps avoid potential drug interactions. Proper hydration can minimize some side effects.
Medication Interactions
- Antacids: Take fexofenadine at least 2 hours before or after taking antacids. Ketoconazole: This antifungal medication can interact with fexofenadine, potentially increasing its concentration in your blood.
This information is for educational purposes only and doesn’t replace professional medical advice. Always consult your doctor or pharmacist for personalized guidance regarding fexofenadine use.


