How Effective Is Emergency Contraception?
Method | Percentage of Women Who Become Pregnant Because Emergency Contraception Is Unsuccessful |
|---|---|
Copper-releasing IUD | 0.1% |
Levonorgestrel-releasing IUD (high dose) | 0.3% |
Levonorgestrel taken by mouth | 2–3% |
Ulipristal acetate (a single dose) | 1.5% |
IUD = intrauterine device. | |
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