
Plan B (Morning-After Pill): Effectiveness and Side Effects - WebMD
2025年2月20日 · Plan B, also called the morning-after pill, is an emergency contraceptive pill taken after unprotected sex to prevent pregnancy. You don't, however, have to wait until the morning after sex to...
Plan B One-Step - Drugs.com
2023年5月16日 · What is Plan B One-Step? Plan B One-Step is a morning-after pill (emergency contraceptive pill) used to prevent pregnancy after unprotected sex or failure of other forms of birth control (such as condom breakage, or a missed dose of birth control pills).
Plan B Morning-After Pill | How Plan B Works & Side Effects
A levonorgestrel morning-after pill — like Plan B One Step, Take Action, My Way, Option 2, Preventeza, AfterPill, My Choice, Aftera, and EContra — can lower your chance of getting pregnant by 75–89% if you take it within 3 days after unprotected sex.
Plan B One-Step® | Morning After Pill
What is Plan B? Plan B is safe and effective emergency contraception. It is not an abortion pill. You must take Plan B within 72 hours after unprotected sex. The sooner you take it, the better it works. Helps prevent pregnancy before it starts by temporarily delaying ovulation; Won’t impact your ability to get pregnant in the future
Plan B (Morning-After Pill): Uses, Effectiveness, and Safety
2024年7月29日 · Plan B One-Step (levonorgestrel) is a Food and Drug Administration (FDA) approved, over-the-counter (OTC) emergency contraceptive. This pill works by stopping the ovary from...
Simple Ways to Know if Plan B Worked: 13 Steps (with Pictures) - wikiHow
2025年2月24日 · Plan B is an emergency contraceptive that can prevent pregnancy up to 95% of the time by preventing or delaying ovulation if taken right after you have sex. If you've used Plan B, you're probably anxious to know if it worked....
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How Does Plan B Work? - Verywell Health
2024年5月7日 · How Does Plan B Work? Plan B works by preventing ovulation. It contains a larger dose of levonorgestrel, the synthetic hormone found in birth control pills. When you take this larger dose of levonorgestrel just after unprotected sex, it can prevent or delay ovulation. Plan B does not work after ovulation.
What Experts Want You to Know About Plan B - The New York …
2024年11月8日 · Emergency contraceptives like Plan B, also known as the morning-after pill, are a safe and effective way to prevent pregnancy after unprotected sex. They are legal nationwide, though they can...
How effective is Plan B and how late can you take it? - Drugs.com
2024年7月22日 · Plan B (levonorgestrel) is estimated to be 60% to 94% effective at preventing pregnancy when taken within 3 days (72 hours) after unprotected sex. Somewhere between 0.6% to 2.6% of women who take Plan B within this time frame will still become pregnant.
How Many Plan B Can You Take in a Year? - Verywell Health
2025年3月23日 · Plan B One-Step is a single 1.5 milligram (mg) dose of levonorgestrel, taken by mouth as soon as possible and within four days of unprotected sex. This product is sold in pharmacies under names like My Way, Aftera, and Take Action. These products are just as effective as Plan B One-Step.