Truncal Acne: Pathophysiology, Clinical Features, and Management Strategies.

Small‐scale randomized double‐blind studies have shown that drospirenone/ethinyl estradiol‐containing formulations significantly reduce both inflammatory and non‐inflammatory truncal lesions over 24 weeks with good tolerability, although lesion clearance rates did not reach statistical significance compared with placebo.

also in 111,027 other papers