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Ulesfia

Generic Name: benzyl alcohol topical (BEN zil AL koe hol TOP i kal)
Brand Name: Ulesfia

Medically reviewed by Philip Thornton, DipPharm. Last updated on Aug 3, 2020.

What is Ulesfia?

Ulesfia (benzyl alcohol topical) is an anti-parasite medication.

Ulesfia is used to treat head lice in people between 6 months of age and 60 years old.

Ulesfia is for treating head lice only. It will not treat lice on other body areas.

Important Information

Ulesfia is used to treat head lice in people between the ages of 6 months and 60 years old. This medicine will not treat lice on other body areas.

Do not use Ulesfia on a child or infant younger than 6 months old.

If Ulesfia gets in your eyes or on your skin, rinse with water. Call your doctor at once if you have severe stinging, itching, or irritation of the eyes or skin after rinsing.

Avoid head to head contact with others. Avoid sharing hair brushes, combs, hair accessories, hats, scarves, and pillows. Lice infections are highly contagious.

Before taking this medicine

To make sure Ulesfia is safe for you, tell your doctor if you have ever had:

  • any skin conditions; or

  • any other medical conditions.

Tell your doctor if you are pregnant or breastfeeding.

Do not use this medication on an infant younger than 6 months old. Ulesfia contains an ingredient that can cause serious side effects or death in very young or premature babies. Tell your healthcare provider if your baby was born prematurely.

How should I use Ulesfia?

Use Ulesfia exactly as prescribed by your doctor. Follow all directions on your prescription label and read all medication guides or instruction sheets.

Avoid getting Ulesfia in your eyes, mouth, or vagina. It is for use only on the hair and scalp.

Do not allow a child to use this medicine without supervision of an adult.

Do not wet your hair or scalp before applying this medicine.

Apply enough Ulesfia lotion to completely soak your scalp and hair, including behind your ears and the back of your neck. Massage in thoroughly. You may need to use more than one bottle of Ulesfia for longer hair.

Wash your hands with soap and water after applying the medicine.

Leave the lotion on for 10 minutes, keeping your eyes closed and covered during this time. Then rinse out thoroughly with water.

You may shampoo your hair at any time after using Ulesfia.

After rinsing, use a fine-tooth nit comb to remove lice eggs from the hair. Rinse the nit comb often during use. Place removed nits into a sealed plastic bag and throw it into the trash to prevent re-infestation.

Ulesfia will not get rid of lice eggs so you must use a second application of this medicine 7 days after the first use.

Wash all clothing, hats, bed clothes, bed linens, and towels in hot water and dry in high heat. Dry-clean any non-washable clothing. Hair brushes, combs, and hair accessories should be soaked in hot water.

Store at room temperature away from moisture and heat. Do not freeze.

What happens if I miss a dose?

Ask your doctor if you missed your second application.

What happens if I overdose?

Seek emergency medical attention or call the Poison Help line at 1-800-222-1222 if anyone has accidentally swallowed this medication.

What should I avoid while using Ulesfia?

To prevent spreading lice, avoid head to head contact with others until your lice infection has cleared up. Avoid sharing hair brushes, combs, hair accessories, hats, scarves, and pillows. Lice infections are highly contagious.

Ulesfia side effects

Get emergency medical help if you have signs of an allergic reaction to Ulesfia: hives; difficult breathing; swelling of your face, lips, tongue, or throat.

If the medicine gets in your eyes or on your skin, rinse with water. Call your doctor at once if you have severe stinging, itching, or irritation of the eyes or skin after rinsing.

Common Ulesfia side effects may include:

  • eye irritation; or

  • numbness or irritation after applying this medicine.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

What other drugs will affect Ulesfia?

Medicine used on the skin is not likely to be affected by other drugs you use. But many drugs can interact with each other. Tell each of your healthcare providers about all medicines you use, including prescription and over-the-counter medicines, vitamins, and herbal products.

Further information

Remember, keep this and all other medicines out of the reach of children, never share your medicines with others, and use Ulesfia only for the indication prescribed.

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.

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