Breakthrough Bleeding in OC Switchers
35
µg EE OC vs. Two 20 µg EE OCs
35
µ
g EE
(Ortho
Tri-Cyclen)
20
µ
g EE
(Alesse and
Mircette)
No significant differences
Adapted from Rosenberg MJ et al.
Contraception
. 1999;60:321-329.