COCs that incorporate both newer progestins and changes
to the traditional HFI may provide useful and well-tolerated
options for women seeking pregnancy prevention. One
such regimen contains 21 days of DSG 150 mcg and EE
20 mcg followed by 7 days of low-dose EE (10 mcg). A
previous 6-month study of this formulation demonstrated its
efficacy and tolerability in women seeking pregnancy
prevention