A fixed-dose combination topical gel/cream used primarily for the treatment of mild to moderate inflammatory acne vulgaris. Adapalene is a third-generation synthetic retinoid that normalizes follicular keratinization and reduces inflammation. Clindamycin is a lincosamide antibiotic that inhibits protein synthesis in Cutibacterium acnes, reducing bacterial colonization and inflammation. The combination provides synergistic anti-acne effects by targeting multiple pathogenic factors: abnormal keratinization, bacterial proliferation, and inflammation.
Adult: Apply a thin film once daily, in the evening, to clean, dry affected areas of the face, chest, or back.
Note: 1. Wash hands and affected area with a mild cleanser. Pat dry. 2. Dispense a pea-sized amount for the entire face. 3. Apply a thin layer, avoiding eyes, lips, nostrils, and mucous membranes. 4. Do not apply to broken, sunburned, or eczematous skin. 5. Wash hands after application. 6. Use non-comedogenic moisturizer if dryness occurs. 7. Use sunscreen (SPF 30 or higher) during the day.
The combination exerts a multi-targeted effect on acne pathogenesis. Adapalene binds to specific retinoic acid nuclear receptors (RAR-β and RAR-γ), modulating gene transcription to normalize differentiation of follicular epithelial cells, preventing microcomedone formation. It also exhibits direct anti-inflammatory properties by inhibiting chemotaxis of neutrophils and the production of pro-inflammatory cytokines (e.g., IL-6, TNF-α). Clindamycin inhibits bacterial protein synthesis by binding to the 50S subunit of the bacterial ribosome, specifically targeting Cutibacterium acnes. It reduces bacterial colonization, free fatty acid production, and leukocyte chemotaxis, thereby decreasing inflammation.
Pregnancy: Category C (US FDA). Animal studies with adapalene have shown teratogenicity at high oral doses. No adequate and well-controlled studies in pregnant women. Use only if the potential benefit justifies the potential risk to the fetus. Avoid application to large body surface areas.
Driving: No effect on driving ability.
| Erythromycin (topical or systemic) | Pharmacological antagonism; clindamycin and erythromycin have opposing actions on the bacterial ribosome, reducing efficacy. | Major |
| Other topical retinoids (Tretinoin, Isotretinoin gel) | Increased risk of severe local irritation, dryness, and peeling. | Major |
| Topical Benzoyl Peroxide | Benzoyl peroxide may inactivate clindamycin if applied simultaneously. Apply at different times (e.g., benzoyl peroxide in AM, this combination in PM). | Moderate |
| Abrasive or medicated soaps/cleansers, Astringents, Alcohol-containing products | Additive drying and irritating effect. | Moderate |
| Photosensitizing drugs (e.g., Tetracyclines, Fluoroquinolones, Thiazides) | Increased risk of photosensitivity reactions. | Moderate |
| Neuromuscular blocking agents (e.g., Pancuronium) | Systemically absorbed clindamycin may enhance neuromuscular blockade. | Theoretical risk with topical use |
Same composition (Adapalene (0.1% w/w) + Clindamycin (1% w/w)), different brands: