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Capsaicin

Pronounced

"kap-SAY-iss-in"

Common brand names:

Zostrix

Uses

This medication is used to treat minor aches and pains of the muscles/joints (such as arthritis, backache, sprains). Capsaicin works by decreasing a certain natural substance in your body (substance P) that helps pass pain signals to the brain.

Other Uses

This section contains uses of this drug that are not listed in the approved professional labeling for the drug but that may be prescribed by your health care professional. Use this drug for a condition that is listed in this section only if it has been so prescribed by your health care professional.

This drug may also be used for nerve pain.

How to Use This Medication

Use this medication on the skin only. Follow all directions on the product package. If you have any questions, ask your doctor or pharmacist.

For the cream, gel, and lotion forms, apply a thin layer of medication to the affected area and rub in gently and thoroughly. You may want to use a cotton ball/swab or latex glove to apply the medication to avoid touching the medication with your hands.

Do not apply the medication in the eyes, mouth, nostrils, or genitals. If you do get the medication in those areas, flush with plenty of water. Also, do not apply this medication to skin that is injured or irritated (for example, cut, scraped, sunburned).

Do not apply this medication immediately before or after activities such as bathing, swimming, sun bathing, or heavy exercise. Do not bandage or wrap the affected area or use a heating pad on that area. Doing so may increase the risk of side effects.

After applying the medication, wash your hands unless you are using this medication to treat the hands. If treating the hands, wait at least 30 minutes after applying the medication to wash your hands.

Use this medication regularly to get the most benefit from it. To help you remember, use it at the same times each day.

This medication may sometimes take up to 2 months to work. Tell your doctor if your condition lasts for more than 7 days, if it gets worse, or if it keeps returning. If you think you may have a serious medical problem, get medical help right away.

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RxAnswers™ is a copyrighted combined product from TraceGains and First DataBank, Inc.

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 2025.