Get a Plan B prescription online for pregnancy prevention

Get convenient and affordable Plan B (levonorgestrel) prescriptions available for same-day pickup at your local pharmacy. Talk to a health care provider on Sesame to start treatment right away.

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Product Overview

Plan B (levonorgestrel)

  • What is Plan B (levonorgestrel)?
    Plan B is an emergency contraceptive tablet that prevents unwanted pregnancies after unprotected sex or contraceptive failure during sexual intercourse. Contraceptive failure may occur when a daily birth control pill is taken incorrectly, a condom isn’t used correctly, or a condom breaks during sex.

    Plan B is widely available over-the-counter. It can be taken within 120 hours of unprotected sex but is more effective the sooner it is taken. It is important to note that Plan B is strictly a form of contraception. It cannot terminate a pregnancy or protect against sexually transmitted diseases (STIs).

  • What are the common side effects of Plan B?
    Plan B has been shown to cause some side effects. Talk to your health care provider if these adverse reactions do not go away within a few days. Common side effects include increased menstrual bleeding, nausea, headache, and fatigue.

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  • Same-day pickup
    Prescription sent to your local pharmacy during your appointment.

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Medically Reviewed By Dr. Allison Edwards, MD

Frequently asked questions about Plan B

Plan B is an emergency contraceptive tablet that prevents unwanted pregnancies after unprotected sex or contraceptive failure during sexual intercourse. Contraceptive failure may occur when a daily birth control pill is taken incorrectly, a condom isn’t used correctly, or a condom breaks during sex. Plan B contains the synthetic hormone levonorgestrel, an active ingredient in some IUDs, and the contraceptive arm implant.

Plan B should not be used in place of regular birth control or contraceptive measures. It is intended to be used as an emergency backup if other forms of birth control fail.

Plan B is widely available over-the-counter. It can be taken within 120 hours of unprotected sex but is more effective the sooner it is taken. It is important to note that Plan B is strictly a form of contraception. It cannot terminate a pregnancy or protect against sexually transmitted diseases (STIs).

Plan B is an emergency contraceptive that prevents pregnancy after unprotected sexual intercourse or contraceptive failure during intercourse. It should not be used in place of regular birth control.

Plan B pills cannot terminate an existing pregnancy, nor will they provide any protection against sexually transmitted infections. It is strictly used as an emergency measure after unprotected sex or contraceptive failure.

Plan B contains levonorgestrel, which belongs to a classification of birth control medications known as progestins. Progestins contain a synthetic version of the naturally occurring hormone progesterone. The ovaries produce progesterone, which aids in regulating the female reproductive system. Progestins release a strong dose of levonorgestrel into the body to prevent ovulation (the ovaries releasing an egg for fertilization) and thicken cervical mucus, making it harder for sperm to reach an egg. If sperm cannot get to an egg for fertilization, pregnancy is nearly impossible.

Plan B works more effectively the sooner you take it after intercourse. It is most effective within 72 hours of unprotected intercourse or contraceptive failure.

Plan B tablets are a form of emergency contraception, not a daily birth control pill. This means that you will become fertile again several days after taking them. Once the sex hormones released by Plan B dissipate, the reproductive system will return to working normally. Because of this, you should not use these pills as a substitute for routine contraception. It is also important to note that progestin medications work on the body's reproductive system. They do not protect against sexually transmitted infections or diseases.

Plan B has been shown to cause some side effects. Talk to your health care provider if these adverse reactions do not go away within a few days.

Common side effects reported from Plan B use include:

  • Increased menstrual bleeding
  • Nausea
  • Headache
  • Fatigue
  • Abdominal pain
  • Breast tenderness
  • Changes in the menstrual cycle (delayed or late period)

If you experience severe abdominal pain several weeks after taking Plan B, talk to a health care provider immediately.

Drug interactions can increase your risk of severe side effects and alter how emergency contraception works. Speak with your doctor about any other medication you are taking, including anti-HIV protease inhibitors, herbal products, antibiotics, and anticonvulsants, to avoid adverse effects before taking Plan B.

Be sure to inform your doctor if you are pregnant before taking Plan B. Do not take Plan B if you are already pregnant.

Plan B is supplied as an oral tablet. It is widely available over the counter. In most cases, a single dose is provided. This dose should be taken as soon as possible, no more than 72 hours after intercourse.

Use this medication exactly as ordered by your doctor or as directed by the packaging. Do not take more than one dose of Plan B. This medication can be taken at any time during your menstrual cycle. It should not be used in place of regular birth control or contraceptive measures.

If you vomit within 2 hours of taking Plan B, talk to a health care provider immediately. Another tablet may be needed.

Plan B is widely available over the counter to all women of childbearing age. If you have any questions about Plan B or other forms of emergency contraception, talk to a health care provider before using them. Sesame offers quick and affordable video visits with licensed health care providers nationwide, so you can ask any questions before taking this medication.

Plan B is widely available over-the-counter.

If you have any questions about emergency contraception or are unsure if it is right for you, talk to a health care provider on Sesame right away to discuss your concerns. Sesame offers discreet and affordable online birth control consultation services with licensed health care providers. Book a video visit if you have any questions or concerns about emergency contraception.

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