Yasmin Vs. Plan B

Many people may be unaware of the differences between Yasmin versus Plan B. Yasmin® (drospirenone/ethinyl estradiol) is an oral contraceptive that is taken on a daily basis to prevent pregnancy. Plan B® (levonorgestrel), on the other hand, is an emergency contraceptive that is used to prevent pregnancy after unprotected sex.
Although one medication is taken on a regular schedule and the other on an emergency basis, they both work in similar ways. They prevent pregnancy by stopping ovulation (the maturation and release of eggs from the ovaries) and altering the lining of the uterus (the endometrium), making it less receptive to a fertilized egg.
Effects of Yasmin
Yasmin was shown to be an effective birth control method in a large clinical trial. In this study, less than 1 out of every 100 women who used Yasmin for a year became pregnant.
Effects of Plan B
Taking it within 72 hours after unprotected sex reduces the risk of pregnancy by 89 percent. After any one act of unprotected intercourse, the average woman has an 8 percent chance of getting pregnant. If she takes Plan B, that risk is reduced to about 1 percent.
(Click Yasmin and Plan B for more information about the similarities and differences between Plan B vs. Yasmin, to learn about the potential side effects of these medications, and to find out when and how to take the medicines.)
Last reviewed by: Kristi Monson, PharmD
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