How is ella different from Plan B One-Step or Next Choice One Dose?

Plan B One-Step, Next Choice One Dose, and other over-the-counter emergency contraception (EC) pills all contain the same medication and work to prevent pregnancy before it starts by delaying ovulation (when your ovary releases an egg). Prescription EC pills ella contain a slightly different medication that also works to prevent pregnancy before it starts by delaying ovulation. That means that no type of EC pills are the same as medication abortion. While all methods of emergency contraception can be used up to five days after unprotected sex, over-the-counter EC is most effective when used within 72 hours (three days), and works even better within 24 hours. But ella is just as effective on the fifth day as it is on the first. How effective EC pills are at preventing pregnancy also depends on how much you weigh. Over-the-counter EC pills are less effective if you weigh 165 pounds or more and prescription EC is less effective if you weigh more than 195 pounds.