Diphenhydramine

Benadryl, many other brand names, and generics
Antihistamine

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B3YesNoNo
Key
  • Elixir (OTC): 12.5 mg/5 mL; may contain 5.6% alcohol
  • Oral liquid/solution (OTC): 12.5 mg/5 mL
  • Caps/tabs (OTC): 25, 50 mg
  • Chewable tabs (OTC): 12.5 mg; contains aspartame, phenylalanine
  • Injection: 50 mg/mL (1, 10 mL)
  • Topical cream (OTC): 2% (28, 35, 42 g); may contain zinc acetate
  • Topical gel (OTC): 2% (103, 118 mL); contains parabens
  • Topical stick (OTC): 2% (14 mL); contains alcohol

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