Clindamycin

A multicentre, randomized, single-blind, parallel-group study comparing the efficacy and tolerability of benzoyl peroxide 3%/clindamycin 1% with azelaic acid 20% in the topical treatment of mild-to-moderate acne vulgaris (2016)

Topical 4% nicotinamide vs. 1% clindamycin in moderate inflammatory acne vulgaris (2013)

Topical nicotinamide compared with clindamycin gel in the treatment of inflammatory acne vulgaris (1995)