Diphenhydramine (injection)

🧮 Dose calculator

Acute allergic reaction (adjunct to epinephrine) · Regimen source: FDA Diphenhydramine inj. · Dosage and Administration — Adults

• • 100 mg if required; max 400 mg/day; IV no faster than 25 mg/min. FDA Diphenhydramine inj. · Dosage and Administration — Adults

Enter age (weight is optional for this regimen).

👥 Special populations

• 🤰 PregnancyUse with caution

  Label states no clear risk or has limited data; use only if needed, under medical advice. FDA Diphenhydramine inj. · Pregnancy

  “Teratogenic Effects—Pregnancy Category B Reproduction studies have been performed in rats and rabbits at doses up to 5 times the human dose and have revealed no evidence of impaired fertility or harm to the fetus due to diphenhydramine hydrochloride.”

• 🤱 BreastfeedingContraindicated

  Label: contraindicated while breastfeeding. FDA Diphenhydramine inj. · CONTRAINDICATIONS

  “Use in Nursing Mothers Because of the higher risk of antihistamines for infants generally, and for neonates and prematures in particular, antihistamine therapy is contraindicated in nursing mothers.”

• 👶 ChildrenUse with caution

  The label has conditions, age limits or notes for children; the label sentence is quoted below. FDA Diphenhydramine inj. · Pediatric Use

  “Diphenhydramine should not be used in neonates and premature infants (see CONTRAINDICATIONS ).”

• 👴 Older adultsNo data

  The source for this drug has no section for this group.

• ⚥ Females & males of reproductive potentialNo data

  The source for this drug has no section for this group.