Clindamycin and benzoyl peroxide gel for treating acne vulgaris

Clindamycin and benzoyl peroxide topical gel is a combination medication used to treat acne vulgaris. It combines an antibiotic (clindamycin phosphate) with a compound (benzoyl peroxide) that helps reduce acne-causing bacteria and inflammation.

This gel is indicated for the topical treatment of moderate to moderately severe facial acne vulgaris in patients aged 12 years and older.

Clindamycin phosphate 1%, Benzoyl peroxide 5%

Clindamycin phosphate is an antibiotic that inhibits bacterial protein synthesis, targeting acne-related bacteria (such as Propionibacterium acnes). Benzoyl peroxide is absorbed into the skin and converted to benzoic acid, concentrating in the sebaceous follicles where it acts to reduce bacterial colonization and inflammation.

Apply approximately 2 grams of the gel twice daily, once in the morning and once in the evening, to affected areas after gently washing, rinsing with warm water, and patting the skin dry. Use as directed by your physician. Avoid contact with eyes, inside the nose, mouth, and mucous membranes.

• Known hypersensitivity to clindamycin, lincomycin, benzoyl peroxide, or any gel components.
• History of regional enteritis, ulcerative colitis, or antibiotic-associated colitis.

• Severe colitis risk: Clindamycin, including topical use, has been associated with antibiotic-associated colitis (including pseudomembranous colitis), which can be severe and potentially fatal. Symptoms include persistent diarrhea, severe abdominal cramps, and blood and mucus in stools. Discontinue use and promptly seek medical attention if significant diarrhea occurs.
• Sun sensitivity: Minimize or avoid exposure to natural and artificial sunlight (including tanning beds). Use protective clothing and sunscreen with SPF 15 or higher.
• Allergy and hypersensitivity: Discontinue immediately and seek medical help if allergic reactions such as severe swelling or breathing difficulty develop.
• Not for ophthalmic use: For skin use only; avoid eyes and mucous membranes.

The most common side effect is dry skin (about 12%). Other local reactions include mild application site reactions such as redness, peeling, itching, and sunburn, occurring at lower frequencies (1-3%). Rarely, serious allergic reactions including anaphylaxis have been reported post-marketing.

• Do not use clindamycin-containing products together with erythromycin products due to potential antagonism.
• Use caution when combining with other topical acne agents, especially peeling, desquamating, or abrasive products, to avoid increased skin irritation.

Pregnancy

There are no well-controlled studies in pregnant women. Animal studies have not shown teratogenicity at exposure levels much higher than the human dose, but the risk to humans is unknown. Use only if potential benefit justifies potential risk.

Lactation

It is unknown if topical application leads to drug excretion in human milk. Orally and parenterally given clindamycin appears in breast milk and may cause serious adverse reactions in nursing infants. Consider discontinuing nursing or the drug when using this gel.

Overdose information is not specified. In case of accidental ingestion or excessive application, seek medical advice.

Store the gel at room temperature up to 25°C (77°F). Do not freeze. Use the reconstituted product within 3 months and discard any unused portion after this period.