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Erythromycin and Benzoyl Peroxide
What is it? Overview Usage Side Effects and Warnings

Erythromycin and Benzoyl Peroxide Overview

Written by FoundHealth.

(er ith roe MYE sin & BEN zoe il per OKS ide)

U.S. Brand Names

Benzamycin®; Benzamycin® Pak

Mexican Brand Names


Pharmacologic Category

Acne Products; Topical Skin Product, Acne

Reasons not to take this medicine

• If you have an allergy to erythromycin, benzoyl peroxide, or any other part of this medicine.

• Tell healthcare provider if you are allergic to any medicine. Make sure to tell about the allergy and how it affected you. This includes telling about rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other symptoms involved.

• If you have a skin infection.

How does it work?

• Erythromycin and benzoyl peroxide work to injure the bacteria and fight the infection causing the acne (pimples).

How is it best taken?

• Do not take this medicine by mouth. For skin only. Keep out of mouth, nose, and eyes (may burn).

• Wash hands before and after use.

• Wash and rinse affected area with warm water, then pat dry.


• Mix in palm of hand.


• Apply a thin layer to the affected skin and rub in gently.

• Apply twice daily, once in the morning and once in the evening or as directed.

What do I do if I miss a dose? (does not apply to patients in the hospital)

• Apply a missed dose as soon as possible.

• If it is almost time for the next dose, skip the missed dose and return to your regular schedule.

• Do not apply a double dose or extra doses.

• Do not change dose or stop medicine. Talk with healthcare provider.

What should I monitor?

• Change in condition being treated. Is it better, worse, or about the same?

• Follow up with healthcare provider.

How should I store this medicine?

Packets: • Store at room temperature.

Jar: • Store in a refrigerator. Do not freeze.

• Throw away any unused portion after 3 months.

General statements

• If you have a life-threatening allergy, wear allergy identification at all times.

• Do not share your medicine with others and do not take anyone else's medicine.

• Keep all medicine out of the reach of children and pets.

• Most medicines can be thrown away in household trash after mixing with coffee grounds or kitty litter and sealing in a plastic bag.

• Keep a list of all your medicines (prescription, natural products, supplements, vitamins, over-the-counter) with you. Give this list to healthcare provider (doctor, nurse, nurse practitioner, pharmacist, physician assistant).

• Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or in Canada to Health Canada's Canada Vigilance Program at 1-866-234-2345.

• Talk with healthcare provider before starting any new medicine, including over-the-counter, natural products, or vitamins.

Created: 2005-04-07 16:38:37.0

Modified: 2010-03-09 08:17:17.0

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