Plan B One-Step

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Generic Name: Plan B One-Step Brand Name(s): Generics only. No brands available.

Uses

What is Plan B One Step® (levonorgestrel emergency contraceptive) used for?

Plan B One Step® contain levonorgestrel, a female hormone that prevents ovulation (the release of an egg from an ovary). Levonorgestrel also causes changes in your cervical mucus and uterine lining, making it harder for sperm to reach the uterus and harder for a fertilized egg to attach to the uterus.

Plan B One Step® is used to prevent pregnancy after unprotected sex or failure of other forms of birth control (such as condom breakage, or missing 2 or more birth control pills).

Plan B One Step® may also be used for other purposes not listed in this medication guide.

How should I take Plan B One Step® (levonorgestrel emergency contraceptive)?

Plan B One Step® dosage consists of a single tablet taken once. A second tablet or dose is not requitred. Plan B One Step® should be taken as soon as possible and not more than 72 hours (3 days) after unprotected intercourse or contraceptive failure.

Call your doctor right away if you vomit within 1 hour after taking the Plan B One Step® tablet. Do not take another dose until you talk with your doctor.

You should be examined by your doctor within 3 weeks after taking Plan B One Step®. The doctor will need to confirm that you are not pregnant and that this medication has not caused any harmful effects.

If your period is late by 1 week or longer after the expected date, you may be pregnant. Get a pregnancy test and contact your doctor if you are pregnant. Plan B One Step® will not terminate a pregnancy that has already begun (the fertilized egg has attached to the uterus).

How do I store Plan B One Step® (levonorgestrel emergency contraceptive)?

Plan B One Step® is best stored at room temperature away from direct light and moisture. To prevent drug damage, you should not store Plan B One Step® in the bathroom or the freezer. There may be different brands of Plan B One Step® that may have different storage needs. It is important to always check the product package for instructions on storage, or ask your pharmacist. For safety, you should keep all medicines away from children and pets.

You should not flush Plan B One Step® down the toilet or pour them into a drain unless instructed to do so. It is important to properly discard this product when it is expired or no longer needed. Consult your pharmacist for more details about how to safely discard your product.

Precautions & warnings

What should I know before using Plan B One Step® (levonorgestrel emergency contraceptive)?

Before using this drug, tell your doctor if:

  • You are pregnant or breastfeeding. This is because, while you are expecting or feeding a baby, you should only take medicines on the recommendation of a doctor.
  • You are taking any other medicines. This includes any medicines you are taking which are available to buy without a prescription, such as herbal and complementary medicines.
  • You have allergy with any of active or inactive ingredients of Plan B One Step® or other medications.
  • You have any other illnesses, disorders, or medical conditions.

Plan B One Step® is not intended for use as a routine form of birth control and should not be used in this manner. Talk with your doctor about the many forms of birth control available. Do not use this medication if you are already pregnant. Plan B One Step® will not terminate a pregnancy that has already begun (the fertilized egg has attached to the uterus).

Before using this medication, tell your doctor if you are allergic to any drugs, or if you have diabetes. You may not be able to use Plan B One Step®, or you may need special tests during treatment.

Levonorgestrel can pass into breast milk and may harm a nursing baby. Do not use Plan B One Step® without telling your doctor if you are breast-feeding a baby. Do not give Plan B One Step® to anyone younger than 15 years old. Contact a doctor for medical advice.

Is it safe during pregnancy or breastfeeding?

There are no adequate studies in women for determining risk when using Plan B One Step® during pregnancy or while breastfeeding. Please always consult with your doctor to weigh the potential benefits and risks before taking Plan B One Step®. Plan B One Step® is pregnancy risk category X, according to the US Food and Drug Administration (FDA).

FDA pregnancy risk category reference below:

  • A=No risk
  • B=No risk in some studies
  • C=There may be some risk
  • D=Positive evidence of risk
  • X=Contraindicated
  • N=Unknown

Side effects

What side effects can occur from Plan B One Step® (levonorgestrel emergency contraceptive)?

Get emergency medical help if you have any of these signs of an allergic reaction to Plan B One Step®: hives; difficulty breathing; swelling of your face, lips, tongue, or throat. Call your doctor at once 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.

Less serious Plan B One Step® side effects may include:

  • Nausea, diarrhea, or stomach pain
  • Dizziness, tired feeling
  • Breast pain or tenderness
  • Changes in your menstrual periods
  • Headache

Not everyone experiences these side effects. There may be some side effects not listed above. If you have any concerns about a side-effect, please consult your doctor or pharmacist.

Interactions

What drugs may interact with Plan B One Step® (levonorgestrel emergency contraceptive)?

Plan B One Step® may interact with other drugs that you are currently taking, which can change how your drug works or increase your risk for serious side effects. To avoid any potential drug interactions, you should keep a list of all the drugs you are using (including prescription drugs, nonprescription drugs, and herbal products) and share it with your doctor and pharmacist. For your safety, do not start, stop, or change the dosage of any drugs without your doctor’s approval.

Products that may interact with this drug are:

  • Rifampin (Rifadin, Rifater, Rifamate, Rimactane)
  • A barbiturate such as amobarbital (Amytal), butabarbital (Butisol), mephobarbital (Mebaral), secobarbital (Seconal), or phenobarbital (Luminal, Solfoton)
  • Seizure medicines such as phenytoin (Dilantin), or carbamazepine (Tegretol)

Does food or alcohol interact with Plan B One Step® (levonorgestrel emergency contraceptive)?

Plan B One Step® may interact with food or alcohol by altering the way the drug works or increase the risk for serious side effects. Please discuss with your doctor or pharmacist any potential food or alcohol interactions before using this drug.

What health conditions may interact with Plan B One Step® (levonorgestrel emergency contraceptive)?

Plan B One Step® may interact with your health condition. This interaction may worsen your health condition or alter the way the drug works. It is important to always let your doctor and pharmacist know all the health conditions you currently have.

Dosage

The information provided is not a substitute for any medical advice. You should ALWAYS consult with your doctor or pharmacist before using Plan B One Step® (levonorgestrel emergency contraceptive).

What is the dose of Plan B One Step® (levonorgestrel emergency contraceptive) for an adult?

Plan B One Step® dosage consists of a single tablet taken once. A second tablet or dose is not requitred. Plan B One Step® tablet should be taken as soon as possible and not more than 72 hours (3 days) after unprotected intercourse or contraceptive failure.

What is the dose of Plan B One Step® (levonorgestrel emergency contraceptive) for a child?

The dosage has not been established in pediatric patients. It may be unsafe for your child. It is always important to fully understand the safety of the drug before using. Please consult with your doctor or pharmacist for more information.

How is Plan B One Step® (levonorgestrel emergency contraceptive) available?

Plan B One Step® is available in the following dosage forms and strengths:

  • Tablet

What should I do in case of an emergency or overdose?

In case of an emergency or an overdose, call your local emergency services or go to your nearest emergency room.

What should I do if I miss a dose?

If you miss a dose of Plan B One Step®, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and take your regular dose as scheduled. Do not take a double dose.

Hello Health Group does not provide medical advice, diagnosis or treatment.

Review Date: November 13, 2017 | Last Modified: November 13, 2017

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