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Ella is a non-hormonal pill. It contains ulipristal, a non-hormonal drug that blocks the effects of key hormones necessary for conception. It is available only by prescription.
How Does It Work?
Plan B One-Step emergency contraception may prevent pregnancy by temporarily blocking eggs from being released, by stopping fertilization, or by keeping a fertilized egg from becoming implanted in the uterus. Plan B One-Step is taken in one dose with one pill. Its effectiveness depends on how soon you take the pill. It should be taken as soon as possible -- within 72 hours of unprotected intercourse. When Plan B One-Step is taken as directed, it can reduce the chance of pregnancy by close to 90%.
Ella can be taken up to 120 hours after sex. It is taken as one tablet in one dose.
An IUD can be inserted to prevent pregnancy. The device works by stopping implantation of a fertilized egg in the uterus within 5 to 7 days after unprotected intercourse.