Emergency contraceptives like Plan B and Ella are safe and effective options for preventing pregnancy after unprotected sex, with Ella being more effective than Plan B.
According to Dr. Alison Edelman, the active ingredient in Plan B, levonorgestrel, primarily works by stopping the ovaries from releasing an egg, effectively reducing the risk of pregnancy.
Dr. Monica Woll Rosen emphasizes that the sooner an emergency contraceptive is taken after unprotected sex, the more effective it is likely to be in preventing pregnancy.
In clinical studies, Ella has shown pregnancy rates of 0.9 to 2.1 percent, making it more effective compared to levonorgestrel-based options with rates ranging from 0.6 to 3.1 percent.
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