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Pyrethrins-Piperonyl Butoxide

This form:

Pronounced

"pie-RETH-rins/pip-ER-oh-nill"

Common brand names:

R and C

Uses

This medication is used to treat lice, which are tiny insects that can infest and irritate the scalp (head lice), the pubic area (crabs), or the body. This medication works by paralyzing and killing lice.

How to Use This Medication

Review the manufacturer's instruction sheet and carefully follow all directions for your product. If any of this information is unclear, talk to your doctor or pharmacist. Do not use more drug than recommended.

This medication is for use on the outside of the body only. Avoid applying this drug to the eyes, nose, mouth, or vagina. If this product gets in these areas, rinse with plenty of water. If irritation occurs, tell your doctor promptly.

Do not use this product on eyelashes or eyebrows. Check with your doctor if these areas have lice.

If applying this product to an infant, cover the infant's hands and feet after applying the drug to make sure this product does not get in the infant's mouth.

Apply this drug in an area with good air flow (such as near an open window).

Apply this drug to the hair and scalp once, thoroughly covering the affected area. Using a small amount of water, work the product into the hair and scalp to form a lather. Leave on for about 10 minutes or as long as directed by your doctor.

Rinse and dry with a clean towel. Use a nit removal comb (a fine-toothed comb) as directed to remove nits (lice eggs) from hair. Wash hands immediately after use.

Because this product does not affect the eggs (nits) laid by lice, repeat the application once 7 to 10 days later to kill any newly hatched lice.

Tell your doctor if your condition lasts or gets worse after the 2 treatments with this medication.

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Drug information is selected from data included with permission and copyrighted by First DataBank, Inc. This is a summary and does not contain all possible information about this product. For complete information about this product or your specific health needs, ask your healthcare professional. Always seek the advice of your healthcare professional if you have any questions about this product or your medical condition. This information is not intended as individual medical advice and does not substitute for the knowledge and judgment of your healthcare professional. This information does not contain any assurances that this product is safe, effective or appropriate for you.

This information is intended only for residents of the United States. Products sold under the same brand names in other countries may contain different ingredients.

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Information expires December 2024.