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 ...

LONDON (AP) — Taking a common arthritis drug together with the morning-after pill Plan B could boost the contraceptive’s effectiveness, according to new research published Wednesday. Levonorgestrel, ...

EU regulators say that two emergency contraceptive drugs, levonorgestrel and ulipristal, remain effective for their prescribed purpose "regardless of bodyweight," placating some—but not all—concerns ...