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
8 (9.0)
15 (16.9)
Month 3
8 (9.2)
11 (12.4)
Month 6
0 (0.0)
2 (2.3)