Diphenhydramine
- TRADE NAMES: Allerdryl; Allermax; Allermin; Banophen; Benadryl (Pfizer); Benahist; Benylin; Compoz; Dibrondrin; Dolestan; Genahist; Insomnal; Nytol; Resmin; Sediat; Sominex 2; Valdrene
- INDICATIONS: Allergic rhinitis, urticaria
- CLASS: Antiemetic, Histamine H1 receptor antagonist, Muscarinic antagonist
- HALF-LIFE: 2–8 hours
CLINICALLY IMPORTANT, POTENTIALLY HAZARDOUS INTERACTIONS WITH:
Alcohol, Anticholinergics, Chloral Hydrate, CNS depressants, Glutethimide, MAO inhibitors
PREGNANCY CATEGORY: B
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SKIN.
MUCOSAL.
CARDIOVASCULAR.
CENTRAL NERVOUS SYSTEM.
GASTROINTESTINAL/HEPATIC.
GENITOURINARY.
LOCAL.
NEUROMUSCULAR/SKELETAL.
RENAL.
OTHER.
Page last updated 07/31/2023
Symbol key
Incidence
- <1%
- 1-5%
- 5-10%
- 10-15%
- 15-20%
- 20-30%
- >30%
Warnings in other populations
- Breast feeding
- Geriatric
- Pediatric