Dec. 5, 2002 — A single dose of levonorgestrel, 1.5 mg, was as effective for emergency contraception as two divided doses 12 hours apart or as a single 10-mg dose of mifepristone, according to the ...
Twirla (levonorgestrel/ethinyl estradiol) can cause side effects that range from mild to serious. More common side effects include weight gain and application site reactions. If side effects from ...