From: A comparison of combined oral contraceptives containing chlormadinone acetate versus drospirenone for the treatment of acne and dysmenorrhea: a randomized trial
EE /CMA
n (%)
EE /DRSP
Month 1
82 (91.1)
82 (93.2)
Month 3
84 (94.4)
Month 6
88 (98.9)