Diaphenhydramine

(Benadryl)

 

INDICATIONS:

  • Anaphylaxis
  • Allergic reactions
  • Urticaria
  • Extrapyramidal reaction

 

ADMINISTRATION:

 

  • IV, deep IM, IO

 

DOSAGE:

ADULT:

  • 25 mg IV/ 50 mg IM
  • ONLY WITH DIRECT MEDICAL ORDER

PEDIATRIC:

  • 1 mg/kg IV/IM; maximum 30 mg

 

THERAPEUTIC EFFECTS:

  • Inhibits histamine release and effects
  • Mild sedative
  • Inhibits motion sickness

 

RELATIVE CONTRAINDICATIONS:

  • Asthma
  • COPD
  • Pregnancy
  • Nursing mothers
  • Acute glaucoma

 

SIDE EFFECTS:

  • Sedation
  • Dries bronchial secretions
  • Blurred vision
  • Headache
  • Palpitations

 

SPECIAL NOTES / RESTRICTIONS:

 

  • Up to 100 mg total dose - ADULTS
  • Up to 2 mg/kg total dose - PEDIATRICS

**DIRECT MEDICAL ORDER REQUIRED**