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Can You Take Allegra and Benadryl Together?
Combining Allergy Medications Safely
March 31st, 2026
Can You Take Allegra and Benadryl Together?
Yes, you can take Allegra and Benadryl together safely for short periods. These medications work differently—Allegra (fexofenadine) is a second-generation antihistamine that doesn't cause drowsiness, while Benadryl (diphenhydramine) is a first-generation antihistamine that can make you sleepy. Taking both may provide enhanced allergy relief since they target histamine receptors through different mechanisms. However, combining them increases the risk of side effects like dry mouth, blurred vision, and excessive sedation. Most doctors recommend spacing doses 4-6 hours apart and limiting combination use to 2-3 days maximum. Always consult your healthcare provider before combining antihistamines, especially if you take other medications or have underlying health conditions.
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