Diphenhydramine Tannate
Diphenhydramine Tannate is an antihistamine medication used to treat allergic conditions such as hay fever, allergic rhinitis, and skin reactions like hives. It works by blocking histamine receptors in the body, reducing allergic symptoms. This formulation uses the tannate salt, which may provide a longer duration of action compared to some other forms of diphenhydramine.
Diphenhydramine Tannate is an antihistamine used to relieve allergy symptoms by blocking histamine effects in the body.
Key facts at a glance
- RxNorm
- 360283
- Generic
- Diphenhydramine Tannate
- Class
- pin-variant
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Treatment of seasonal allergic rhinitis (hay fever), perennial allergic rhinitis, allergic skin reactions (urticaria/hives), and allergic conjunctivitis. May also be used for symptomatic relief of the common cold.
Diphenhydramine is a first-generation H1 antihistamine that competitively blocks histamine H1 receptors, preventing histamine from causing allergic symptoms such as itching, sneezing, runny nose, and skin reactions.
May cause drowsiness; avoid operating machinery or driving until you know how it affects you. Should not be used in children under 2 years without medical supervision. Use cautiously in elderly patients due to increased sensitivity to anticholinergic effects. Avoid alcohol and other CNS depressants while taking this medication. Inform your doctor of any heart conditions, glaucoma, or urinary retention before use.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 25, 2026. · Read our editorial policy