Emergency contraception within 72 hours of unprotected sexual intercourse or failure of a contraceptive method.
For this indication, competent medicine agencies globally authorize below treatments:
20 ug once every day
1.5 - 1.5 mg
From 1.5 To 1.5 mg once every day
1.5 mg should be taken, as soon as possible, preferably within 12 hours, and no later than 72 hours after unprotected intercourse.
If vomiting occurs within three hours of taking the tablet, another tablet should be taken immediately.
Levonorgestrel can be used at any time during the menstrual cycle unless menstrual bleeding is overdue.
After using emergency contraception it is recommended to use a local barrier method (e.g. condom, diaphragm, spermicide, cervical cap) until the next menstrual period starts. The use of levonorgestrel does not contraindicate the continuation of regular hormonal contraception.
Women who have used enzyme-inducing drugs during the last 4 weeks and need emergency contraception are recommended to use a non-hormonal EC, i.e. Cu-IUD or take a double dose of levonorgestrel for those women unable or unwilling to use Cu-IUD.
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