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Generic name: benzyl alcohol topical [BEN-zil-AL-ka-hol-TOP-i-kal]
Brand names: zilactin, zilactin-L
The class of drug: topical anti-infectives

What is Zilactin L?

The Ulesfia version is a type of benzyl alcohol that is topically used for treating head lice in individuals aged between 6 months and sixty years of age.

Zilactin is a brand name for zilactin that can be used for treating sores within and around mouths, such as cold sores, canker sores, or gum irritation. Zilactin is suitable for adults and children aged 2 or more years.Zilactin-L can also be used for reasons not mentioned in this guideline.

Side effects of Zilactin-L

See a doctor immediately. If you are experiencing symptoms that indicate an allergic reaction, like hives, trouble breathing, and swelling of your lips, face, and tongue,

If the medication gets into your eye or onto your skin, wash with water. Consult your physician immediately in the event of intense irritation, itching, or irritation to the skin or eyes after washing.

This medication could cause severe adverse effects. Take this medicine off and call your doctor right away If you notice:

  • Swelling;
  • Skin skin;
  • Fever
  • Increasing redness, pain, or irritation.

Common negative effects of zilactin include:

  • Eye irritation,
  • Itching or numbness after applying this medication.

It isn't a complete overview of the various adverse negative effects. Other things could occur. Talk to your doctor for medical advice regarding the effect. It is possible to report any adverse reaction to FDA by calling 1-800-FDA-1088.

Similar or related drugs

Acyclovir, Valacyclovir, Valtrex, Zovirax, and Tetracaine topical


Follow the instructions on your prescription label and the package. Be sure to inform your health professionals about your medical issues, allergies, and any medications you take.

Before you start taking this medicine, make sure to consult your doctor.

Inform your doctor if you were ever diagnosed with:

  • Any skin problems, such as
  • Or any other medical condition.

Zilactin-L is a component that can cause serious adverse side effects or even death in premature infants or very young infants.

  • Don't apply Ulesfia to infants less than 6 months old. Tell your doctor if you think you had a baby born prematurely.
  • Do not give zilactin to children less than 2 years of age.

Inform your doctor if you are nursing or pregnant.

It is not recommended to breastfeed while taking Ulesfia.

What should I do with zilactin-L?

Follow the directions on the prescription label and also read all medication guides or instruction sheets. Make sure you use the medicine exactly as prescribed.Don't allow a young child to take Zilactin L without assistance from an adult.Don't take Ulesfia by mouth. It is only for use on the hair and scalp. It is possible to use Zilactin for mouth sores; however, do not ingest the gel.

Take note of and follow the Instructions for Use that are included with your medication. Consult your physician or pharmacist for clarification if you are unsure of the instructions.Wash your hands thoroughly with soap after you have applied this treatment.Do not wash your scalp or hair prior to applying Ulesfia. Use enough of the lotion to cover your hair and scalp, and massage them thoroughly.

Apply the lotion for 10 minutes while keeping your eyes shut and covered with the towel for this period. Rinse thoroughly with water. Make use of a nit comb with a fine tooth to get rid of lice eggs from your hair. Rinse the comb frequently when using it. Remove the nits in a plastic bag, then dump them in the garbage to avoid reinfestation.Zilactin L will not help remove lice eggs, so you should make another application of the medicine seven days following the first usage.

Clean all clothing, hats, bedding sheets, clothes, and towels with hot water. Then dry with high temperatures. Dry-clean any clothing that isn't washable. Combs, brushes, and hair accessories need to be rinsed in hot water.Apply Zilactin only to the dry oral sore and not to the skin around it or the gums.Zilactin gel sets into an opaque protective film. To take off the film, apply a second layer of gel, and then clean the area with an aqueous cloth or gauze. Do not attempt to take off the film.

Don't use zilactin to treat more than seven days in a row. Stop taking the medicine and consult your physician in the event that the mouth sore doesn't improve after seven days or if it starts to get worse or clears up only to return within a few days.Keep at room temperature, away from heat and moisture. Don't freeze.Zilactin has been proven to be inflammable. Avoid using it near extreme temperatures or a flame that is open. Avoid smoking until the gel has completely dried off on the skin.

What happens if I miss a dose?

Check with your doctor if you haven't had your second dose of Ulesfia.

What happens if I overdose?

Get medical attention immediately or contact the Poison Help line at 1-800-222-1222 if you have accidentally swallowed the medication.

Avoid this

Avoid getting zilactin-L in your eyes.Beware of getting Ulesfia in your mouth or eyes. It's only for use on the scalp and hair.

To stop lice from spreading To prevent spreading lice, avoid head-to-head contact with anyone else until you are sure that your lice infection is cleared. Do not share hair combs, brushes, accessories for hair, caps, pillows, or scarves. Lice infections are extremely contagious.

Interaction with other drugs

Skin care products will not be affected by other medicines that you are taking. However, many medications can interact with each other. Be sure to inform your healthcare professionals about all medications you take, including those that are prescribed and available over the counter, vitamins, and herbal remedies.