Question

"Though the effectiveness decreases as more time elapses, Emergency contraception can be taken up to ________ hours after unprotected intercourse even though the effectiveness decreases as more time elapses."

Answer 1

72

Step-by-step explanation:

Most of emergency contraception pills are made of levonorgestrel, and they can be taken after 72 hours or 3 days after intercourse. However, the effectiveness of the pill decreases with every hour. According to research (Paediatrics & Child Health Vol. 8, Issue 3, March 2003, p. 181–183), if taken:

• within the first 24 hours of intercourse it has a 95% of efficacy, with a pregnancy rate of 0.4%
• between 25 an 48 hours: 85% of efficacy and a pregnancy rate of 1.2%
• between 49 and 72 hours: 58% of efficacy and a pregnacy rate of 2.7%

There is other type of emergency made of Ulipristal acetate. This one can be taken up to 120 hours or 5 days after intercourse.