All::Obstetrics and Gynaecology::Pharmacology::Levonorgestrel

Intro

What is the mode of action of Levonorgestrel ? (as emergency contraceptive)

stop ovulation and inhibit implantation

When taken as emergency contraceptive when must Levonorgestrel be taken?

within 72 hours of unprotected sexual intercourse

What patient groups need a higher dose of Levonorgestrel?

should be doubled for those with a BMI >26 or weight over 70kg

What action should be taken if vomiting after taking Levonorgestrel? (up to 3 hours)

repeat dose

When can hormonal contraceptive be taken after taking Levonorgestrel for emergency contraception?

immediately after