Plan B One-Step

Last updated on RxList: 4/14/2021
Plan B One-Step Side Effects Center

What Is Plan B One-Step?

Plan B One-Step (levonorgestrel tablet) is a progestin-only emergency contraceptive used for prevention of pregnancy following unprotected intercourse or a known or suspected contraceptive failure. People sometimes call Plan B One-Step the "morning after pill." Plan B One-Step does not protect against sexually transmitted diseases.

What Are Side Effects of Plan B One-Step?

Common side effects of Plan B One-Step include

Dosage for Plan B One-Step

The recommended dosage of Plan B One-Step is one pill as soon as possible within 72 hours after unprotected intercourse or a known or suspected contraceptive failure.

What Drugs, Substances, or Supplements Interact with Plan B One-Step?

Plan B One-Step may interact with rifampin, barbiturates, or seizure medicines. Tell your doctor all medications and supplements you use. It can be used at any time during the menstrual cycle. If vomiting occurs within two hours of taking the tablet, consideration should be given to repeating the dose. Plan B One-Step should not be taken as regular birth control.

Plan B One-Step During Pregnancy or Breastfeeding

Do not take Plan B One-Step if you are already pregnant. Consult your doctor before breastfeeding.

Additional Information

Our Plan B One-Step (levonorgestrel tablet) Side Effects Drug Center provides a comprehensive view of available drug information on the potential side effects when taking this medication.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

SLIDESHOW

Choosing Your Birth Control Method See Slideshow
Plan B One-Step Consumer Information

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Get emergency medical help if you have signs of an allergic reaction: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.

Call your doctor or seek emergency medical help if you have severe pain in your lower stomach or side. This could be a sign of a tubal pregnancy (a pregnancy that implants in the fallopian tube instead of the uterus). A tubal pregnancy is a medical emergency.

Common side effects may include:

  • mild stomach pain;
  • breast pain or tenderness;
  • nausea, vomiting, diarrhea;
  • headache, dizziness;
  • feeling tired; or
  • changes in your menstrual periods.

This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.

Read the entire detailed patient monograph for Plan B One-Step (Levonorgestrel Tablet)

QUESTION

Which of the following are methods for contraception? See Answer
Plan B One-Step Professional Information

SIDE EFFECTS

No information provided. Please refer to the WARNINGS section.

Read the entire FDA prescribing information for Plan B One-Step (Levonorgestrel Tablet)

© Plan B One-Step Patient Information is supplied by Cerner Multum, Inc. and Plan B One-Step Consumer information is supplied by First Databank, Inc., used under license and subject to their respective copyrights.

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