Pharmacokinetics of a single oral dose of 1.5-mg levonorgestrel when administered as 750-μg tablets or as 30-μg minipills

Knowledge of emergency contraception amongst tertiary students in far North Queensland

“…Emergency contraception has also been made available through women's health and sexual health clinics. Although a single dose of levonorgestrel 1.5 mg has been shown to be as effective as two doses of 750 µg 12 h apart, the single dose is not registered for use in Australia 2–4 . Numerous studies have demonstrated that levonorgestrel EC is most effective taken within 12 h of unprotected sexual intercourse and that effectiveness drops over time although some effect is still present for up to five days 3,5 .…”