- Birth Control Slideshow Pictures
- Think You Know Birth Control? Quiz
- Sex-Drive Killers Slideshow: Causes of Low Libido
- What is levonorgestrel-oral, and how does it work (mechanism of action)?
- What brand names are available for levonorgestrel-oral?
- Is levonorgestrel-oral available as a generic drug?
- Do I need a prescription for levonorgestrel-oral?
- What are the uses for levonorgestrel-oral?
- What are the side effects of levonorgestrel-oral?
- What is the dosage for levonorgestrel-oral?
- Which drugs or supplements interact with levonorgestrel-oral?
- Is levonorgestrel-oral safe to take if I'm pregnant or breastfeeding?
- What else should I know about levonorgestrel-oral?
What is levonorgestrel-oral, and how does it work (mechanism of action)?
- Levonorgestrel (Plan B) is emergency contraception (commonly called the morning after pill) that is used as backup contraception to prevent pregnancy when taken within 72 hours after unprotected sex or when birth control fails.
- Levonorgestrel is a progestin. Progestins are hormones used in many birth control pills. Although levonorgestrel and similar emergency contraception pills contain a higher dose of levonorgestrel than birth control pills, they work in a similar way to prevent pregnancy, mainly by stopping the release of an egg from the ovary. Additionally, levonorgestrel also may prevent fertilization of an egg (the uniting of the sperm with the egg) or prevent the attachment (implantation) of a fertilized egg to the uterus (womb).
- Emergency contraception pills do not work in women who are already pregnant and should not be taken during pregnancy.
- The FDA approved levonorgestrel in July 1999.
What brand names are available for levonorgestrel-oral?
Plan B One-Step, Next Choice One Dose, My Way
Do I need a prescription for levonorgestrel-oral?
No. Most emergency contraception pills can be purchased over-the-counter or OTC (without a prescription). However, some age restrictions may apply.
What are the uses for levonorgestrel-oral?
Emergency contraception pills are used to help prevent pregnancy after unprotected sex or when birth control methods fail. Emergency contraception is a backup method of preventing pregnancy and should not be used routinely.
What is the dosage for levonorgestrel-oral?
- Emergency contraception pills should be taken as soon as possible and not more than 72 hours after unprotected sex or when birth control fails.
- Single dose regimen: Take one 1.5 mg tablet as soon as possible within 72 hours of unprotected sex or when birth control fails.
- Two-dose regimen: Take one 0.75 mg tablet as soon as possible within 72 hours of unprotected sex or when birth control fails, followed by a second 0.75 mg tablet 12 hours later.
Is levonorgestrel-oral safe to take if I'm pregnant or breastfeeding?
- Emergency contraception pills will not work if you are already pregnant and should not be used during pregnancy.
- Levonorgestrel is thought to enter human milk after oral administration and should be used cautiously in nursing mothers.
What else should I know about levonorgestrel-oral?
What preparations of levonorgestrel-oral are available?
- Levonorgestrel is available as a blister pack containing two 0.75 mg tablets
- Plan B One-Step, Next Choice One Dose, My Way are available as a blister pack containing one 1.5 mg tablet
How should I keep levonorgestrel-oral stored?
Levonorgestrel should be stored at room temperature between 15 C and 30 C (59 F and 86 F).
Levonorgestrel (Plan B One-Step, Next Choice One Dose, My Way) is a non-prescription (over-the-counter or OTC) drug used help prevent pregnancy when birth control methods fail or after unprotected sex. Side effects, drug interactions, storage, dosing, and pregnancy and breastfeeding safety should be reviewed prior to taking this medication.
Multimedia: Slideshows, Images & Quizzes
Am I Pregnant? Test Your Early Pregnancy IQ
What are early pregnancy symptoms? In some women, symptoms range from a missed period to feeling lightheaded. Others may...
Early Signs & Symptoms of Pregnancy
Read about early signs and symptoms of pregnancy such as nausea and vomiting (morning sickness), bloating, tender breasts, and...
Birth Control Quiz: Test Your Medical IQ
What is the best form of birth control? Take this quiz to find out about hormonal, surgical, barrier, and natural methods!...
Sex Quiz: Love & Relationships Facts
Relationships, sex, and love! Could it be that what motivates physical attraction in us may be all in our minds? Take the Sex &...
STD Quiz: Symptoms, Testing & List
There are more sexually transmitted diseases than just the ones you've heard of. Find out what you've been missing with the STD...
The Surprising Health Benefits of Sex
How would you like a stronger immune system or better sleep? Action between the sheets can help you get all of this and more....
Sex-Drive Killers: The Causes of Low Libido
Noticing a lack of intimacy with your partner? Here we explore how stress, lack of sleep, weight gain, depression and low T can...
Choosing Your Birth Control Method
What are your birth control options? Learn about birth control side effects and effectiveness. Discover birth control methods...
Sex Tips for Men: How to Have a Better Sex Life
Learn sex tips for men that lead to more sexual pleasure such as better communication, focusing on pleasurable sensations,...
Your Sex Life After Pregnancy
Learn how your sex life changes after having a baby. Explore tips on how to regain sexual desire and strengthen your relationship...
Related Disease Conditions
Birth Control Options (Types and Side Effects)
Birth control is available in a variety of methods and types. The method of birth control varies from person to person, and their...
Pregnancy Planning (Tips)
Pregnancy planning is an important step in preparation for starting or expanding a family. Planning for a pregnancy includes...
Sexual health information including birth control, impotence, herpes, sexually transmitted diseases, staying healthy, women's...
DVT and Birth Control Pills (Oral Contraceptives)
Deep vein thrombosis (DVT) is a blood clot that has traveled deep into the veins of the arm, pelvis, or lower extremities. Oral...
Treatment & Diagnosis
- IUD (Intrauterine Device for Birth Control)
- Natural Birth Control
- Hormonal Methods of Birth Control
- Birth Control: Surgical Sterilization
- Barrier Methods of Birth Control Side Effects, Advantages, and Disadvantages
- C-Section (Cesarean Birth)
- Contraceptive Measures after Unprotected Sex
- Childbirth Class Options
Medications & Supplements
Prevention & Wellness
Health Solutions From Our Sponsors
Report Problems to the Food and Drug Administration
You are encouraged to report negative side effects of prescription drugs to the FDA. Visit the FDA MedWatch website or call 1-800-FDA-1088.