A topical fixed-dose combination gel/cream primarily used in the management of mild to moderate inflammatory acne vulgaris. Clindamycin is a lincosamide antibiotic that targets Cutibacterium acnes, while Nicotinamide (Vitamin B3) exerts anti-inflammatory, sebostatic, and skin barrier-enhancing effects. This combination offers a synergistic approach by addressing both the bacterial and inflammatory components of acne, potentially reducing the risk of antibiotic resistance compared to clindamycin monotherapy.
Adult: Apply a thin film to the affected area twice daily (morning and evening), after cleansing and drying the skin.
Note: Wash hands before and after application. Cleanse and pat dry the affected area. Apply a pea-sized amount and spread as a thin film. Avoid eyes, mouth, nostrils, mucous membranes, and broken skin. Do not occlude with bandages. Can be used under non-comedogenic moisturizer/sunscreen if needed.
The combination works via complementary mechanisms. Clindamycin binds to the 50S subunit of bacterial ribosomes, inhibiting protein synthesis in susceptible bacteria like Cutibacterium acnes. Nicotinamide inhibits the translocation of NF-ÎșB to the nucleus, reducing inflammatory cytokines (IL-6, IL-8, TNF-α), and inhibits sebum production by reducing triglyceride synthesis in sebocytes. It also improves skin barrier function by increasing ceramide synthesis.
Pregnancy: Category B (US FDA). Clindamycin crosses the placenta. No adequate well-controlled studies in pregnant women. Use only if clearly needed, weighing benefits against risks. Nicotinamide is a vitamin and considered safe. Consult physician.
Driving: No effect on ability to drive or operate machinery.
| Erythromycin (topical or systemic) | Antagonism; both bind to same ribosomal site reducing efficacy. | Major |
| Chloramphenicol | Possible antagonism of antibacterial effect. | Moderate |
| Neuromuscular blocking agents (e.g., Pancuronium, Succinylcholine) | Clindamycin may enhance neuromuscular blockade. | Moderate |
| Kaolin-Pectin (orally) | May reduce oral absorption of clindamycin if taken systemically; less relevant for topical. | Minor |
Same composition (Clindamycin (1% w/w) + Nicotinamide (4% w/w)), different brands: