How Effective Is Ehc

EllaOne continues to be effective a little later in the cycle. A 2017 review of the evidence estimated that around 1 to 2% of women who take ellaOne after unprotected sex will become pregnant. In comparison, it’s estimated that 0.6 to 2.6% of women who take Levonelle after unprotected sex will become pregnant.

How effective is the ECP?

The ECP has a success rate of 98% for those of average weight when taken within 72 hours after unprotected sex. The ECP may not be as effective for women weighing over 70 kg. You should consider using the IUD or taking double the dose (take 2 ECPs together).

Is levonorgestrel always effective?

How Effective Is Levonorgestrel? If you take the pill within 72 hours after you’ve had unprotected sex, levonorgestrel can reduce the risk of pregnancy by up to 87% if taken as directed. If you take Plan B One-Step within 24 hours, it is much more effective.

Elena Rostova

Elena Rostova

Lead Health, Wellness & Medical Journalist

Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.

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