Generic Plan B One-Step

LEVONORGESTREL is an emergency contraceptive (birth control pill). It prevents pregnancy if taken within the 72 hours after unprotected sex. This medicine will not work if you are already pregnant. Compare progestins.

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Get the latest updates on this drug from the GoodRx medical team

Plan B, A to Z: Everything You Need to Know About Emergency Contraception

The GoodRx Pharmacist - June 09, 2015

Emergency contraception (Plan B or the “morning-after pill”) has changed so much in the past few years, it can be difficult to know where things stand. There are more options than ever before to prevent pregnancy after birth control failure or unprotected sex, and many are now available over-the-counter.

To get you up to speed, here’s a Plan B timeline, from its initial approval to the present:

Plan B in Overweight Women

Dr. Sharon Orrange - July 03, 2014

Plan B, Next Choice and Plan B One-Step are all brand names of levonorgestrel, and good options for emergency contraception. Well, not for some. Now there is news that levonorgestrel emergency contraception may be less effective or not effective in overweight and obese women.

What? Yep. Studies suggest that the contraceptive may be less effective in women 165 to 176 pounds (75 to 80 kg) and not effective in women over 176 pounds (over 80 kg). See More

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