Benzyl Alcohol

  • Brand Name : Ulesfia
  • Drug Class : Scabicidal Agents
  • Medical Author : John P. Cunha, DO, FACOEP
  • Medical Reviewer :
  • _eael_post_view_count : 12

What Is Benzyl Alcohol and How Does It Work?

Benzyl alcohol is a prescription topical (for the skin) medication used as an anti-parasite medication. Benzyl alcohol topical is used to treat head lice in people between the ages of 6 months and 60 years old. Benzyl alcohol topical is for treating head lice only. It will not treat lice on other body areas.

Benzyl alcohol is available under the following different brand names: Ulesfia.

Dosages of Benzyl Alcohol

Adult Dosages:

Lotion

  • 5% (Ulesfia)

Pediatric Dosage:

Lotion

  • 5 % (8 oz)

Liquid

  • 10% (Zilactin)

Dosage Considerations – Should be Given as Follows:

Lice, Pediculosis

Adult Dosage:

  • Ulesfia: Apply lotion to dry hair, using enough to completely saturate hair and scalp, rinse off with water after minutes
  • Repeat treatment in 7 days

Pediatric Dosage:

  • Infants under 6 months: Do not use
  • Infants over 6 months (Ulesfia): Apply lotion to dry hair, using enough to completely saturate hair and scalp, rinse off with water after 10 minutes; repeat treatment in 7 days

Amount of Lotion Needed to Cover Scalp and Hair Completely (adult and pediatric):

  • Hair length 0-2 inches: 4-6 ounces
  • Hair length 2-4 inches: 6-8 ounces
  • Hair length 4-8 inches: 8-12 ounces
  • Hair length 8-16 inches: 12-24 ounces
  • Hair length 16-22 inches: 24-32 ounces
  • Hair length longer than 22 inches: 32-48 ounces

Cold Sores/Fever Blisters

Adult Dosage:

  • Zilactin: Apply to affected area up to every 6 hours

Pediatric Dosage:

  • Children under 2 years: Safety and efficacy not established
  • Children over 2 years (Zilactin): Apply to affected area every 6 hours

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