Diphenhydramine Hydrochloride and Zinc Acetate

Diphenhydramine Hydrochloride and Zinc Acetate is a topical combination medicine. Diphenhydramine hydrochloride is an antihistamine that temporarily relieves itching and pain by blocking histamines in the skin. Zinc acetate is a skin protectant that acts as an astringent to dry up oozing and weeping skin lesions caused by poison ivy, oak, or sumac.

Dosage by Body Weight

For external use only. For adults and children 2 years of age and older: Apply to the affected area not more than 3 to 4 times daily. For children under 2 years of age: Consult a doctor. Do not use on large areas of the body, on chickenpox, on measles, or with any other product containing diphenhydramine (including oral formulations).

  1. Body Weight
    Below 5 kg
    Dose
    Not recommended
    Frequency
    Do not use
    Tracking Notes
    Topical diphenhydramine is generally contraindicated in newborns and infants due to increased risk of systemic absorption and toxicity. Consult a pediatrician.
  2. Body Weight
    5-7 kg
    Dose
    Consult doctor
    Frequency
    As directed by physician
    Tracking Notes
    Typically corresponds to infants under 2 years. Safety and efficacy have not been established for this age group without professional medical advice.
  3. Body Weight
    8-10 kg
    Dose
    Thin layer on localized area
    Frequency
    3 to 4 times daily
    Tracking Notes
    Only use if the child is 2 years of age or older. Avoid applying to open wounds, blistered skin, or wide areas of the body.
  4. Body Weight
    11-15 kg
    Dose
    Thin layer on localized area
    Frequency
    3 to 4 times daily
    Tracking Notes
    Ensure child is 2 years of age or older. Do not use concurrently with oral diphenhydramine (Benadryl) to avoid toxic systemic levels.
  5. Body Weight
    16-20 kg
    Dose
    Thin layer on localized area
    Frequency
    3 to 4 times daily
    Tracking Notes
    Apply sparingly. Wash hands thoroughly after application to prevent accidental contact with the eyes or mouth.

Formulation

CreamGelSprayLotion

Purpose

Temporarily relieves pain and itching associated with insect bites, minor burns, sunburn, minor skin irritations, minor cuts, scrapes, and rashes due to poison ivy, poison oak, and poison sumac. It also helps dry the oozing and weeping of poison ivy, oak, and sumac.

Generic Name

Diphenhydramine Hydrochloride and Zinc Acetate

Branded Drug Names

Diphenhydramine Hydrochloride and Zinc Acetate is listed as a generic drug name. Common branded medicines that may contain the same active ingredient include:

Scheduled Drug

No. This medicine is generally not treated as a scheduled/prescription-only drug in common consumer references, but local rules may vary.

Alternatives

Disclaimer: This information is for educational purposes only. WHO references and weight bands are simplified for tracking and must not replace medical advice. Always consult with a healthcare professional before starting or changing any medication.