Progesterone of choice in emergency contraception (AIIMS Nov. 2009)
1. The levonorgestrel-only method.
2. The regimen consists of 2 doses of 750 µg levonorgestrel taken orally 12 hours apart).
3. Levonorgestrel-only methods have been shown in randomized trials to reduce the risk of pregnancyby approximately 85%.
a. 95% of pregnancies when used within 24 hours of intercourse,
b. 85% when used 25 to 48 hours after intercourse, and
c. 58% when used 49 to 72 hours after intercourse
4. Levonorgestrel is The only method that carries no theoretical risk. it is the preferred option for women with contraindications to estrogen such as those with :
a. Known thrombophilia,
b. A history of stroke or heart attack,
c. Migraine headache with neurological symptoms, or
d. Smokers over age