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Generic Name: Flibanserin (flib AN ser in)
Brand Name: Addyi

Medically reviewed on Sep 5, 2018


  • Low blood pressure and passing out have happened with flibanserin. The chance of very low blood pressure and passing out is raised if you drink alcohol, take flibanserin with certain other drugs, or have liver problems. Tell your doctor if you drink alcohol, use drugs, or have ever abused alcohol or drugs.
  • Avoid drinking alcohol while taking flibanserin.
  • Do not take flibanserin if you take any drugs (prescription or OTC, natural products, vitamins) that must not be taken with flibanserin, like certain drugs that are used for hepatitis C, HIV, or infections. There are many drugs that must not be taken with flibanserin. Talk with your doctor and pharmacist to make sure that it is safe for you to use flibanserin with all of your other drugs.
  • Do not take flibanserin if you have liver problems. Talk with your doctor.
  • You may only get flibanserin through a special program. Talk with your doctor.

Uses of Flibanserin:

  • It is used in some women to raise interest in sex.

What do I need to tell my doctor BEFORE I take Flibanserin?

  • If you have an allergy to flibanserin or any part of flibanserin.
  • If you are allergic to any drugs like this one, any other drugs, foods, or other substances. Tell your doctor about the allergy and what signs you had, like rash; hives; itching; shortness of breath; wheezing; cough; swelling of face, lips, tongue, or throat; or any other signs.
  • If you are taking St. John's wort. Do not take St. John's wort with flibanserin. This medicine may not work as well.
  • If you are breast-feeding. Do not breast-feed while you take flibanserin.

This is not a list of all drugs or health problems that interact with flibanserin.

Tell your doctor and pharmacist about all of your drugs (prescription or OTC, natural products, vitamins) and health problems. You must check to make sure that it is safe for you to take flibanserin with all of your drugs and health problems. Do not start, stop, or change the dose of any drug without checking with your doctor.

What are some things I need to know or do while I take Flibanserin?

  • Tell all of your health care providers that you take flibanserin. This includes your doctors, nurses, pharmacists, and dentists.
  • Avoid driving and doing other tasks or actions that call for you to be alert for at least 6 hours after taking flibanserin. Avoid these tasks or actions until you feel fully awake.
  • To lower the chance of feeling dizzy or passing out, rise slowly if you have been sitting or lying down. Be careful going up and down stairs.
  • Avoid grapefruit and grapefruit juice.
  • Talk with your doctor before you use other drugs and natural products that slow your actions.
  • Only take flibanserin at bedtime. Taking flibanserin at any other time of day may raise the chance of low blood pressure, passing out, accidental injury, and feeling sleepy. Talk with your doctor.
  • This medicine may affect how much of some other drugs are in your body. If you are taking other drugs, talk with your doctor. You may need to have your blood work checked more closely while taking flibanserin with your other drugs.
  • This medicine is not approved for use in children. Talk with the doctor.
  • Tell your doctor if you are pregnant or plan on getting pregnant. You will need to talk about the benefits and risks of using flibanserin while you are pregnant.

How is this medicine (Flibanserin) best taken?

Use flibanserin as ordered by your doctor. Read all information given to you. Follow all instructions closely.

  • Take flibanserin at bedtime.
  • To gain the most benefit, do not miss doses.
  • Keep taking flibanserin as you have been told by your doctor or other health care provider, even if you feel well.

What do I do if I miss a dose?

  • Skip the missed dose and go back to your normal time.
  • Do not take 2 doses at the same time or extra doses.

What are some side effects that I need to call my doctor about right away?

WARNING/CAUTION: Even though it may be rare, some people may have very bad and sometimes deadly side effects when taking a drug. Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect:

  • Signs of an allergic reaction, like rash; hives; itching; red, swollen, blistered, or peeling skin with or without fever; wheezing; tightness in the chest or throat; trouble breathing, swallowing, or talking; unusual hoarseness; or swelling of the mouth, face, lips, tongue, or throat.
  • Very bad dizziness or passing out.
  • Feeling very sleepy.

What are some other side effects of Flibanserin?

All drugs may cause side effects. However, many people have no side effects or only have minor side effects. Call your doctor or get medical help if any of these side effects or any other side effects bother you or do not go away:

  • Dizziness.
  • Feeling sleepy.
  • Upset stomach.
  • Feeling tired or weak.
  • Not able to sleep.
  • Dry mouth.

These are not all of the side effects that may occur. If you have questions about side effects, call your doctor. Call your doctor for medical advice about side effects.

You may report side effects to the FDA at 1-800-FDA-1088. You may also report side effects at

If OVERDOSE is suspected:

If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

How do I store and/or throw out Flibanserin?

  • Store at room temperature.
  • Store in a dry place. Do not store in a bathroom.
  • Keep all drugs in a safe place. Keep all drugs out of the reach of children and pets.
  • Throw away unused or expired drugs. Do not flush down a toilet or pour down a drain unless you are told to do so. Check with your pharmacist if you have questions about the best way to throw out drugs. There may be drug take-back programs in your area.

Consumer information use

  • If your symptoms or health problems do not get better or if they become worse, call your doctor.
  • Do not share your drugs with others and do not take anyone else's drugs.
  • Keep a list of all your drugs (prescription, natural products, vitamins, OTC) with you. Give this list to your doctor.
  • Talk with the doctor before starting any new drug, including prescription or OTC, natural products, or vitamins.
  • Some drugs may have another patient information leaflet. Check with your pharmacist. If you have any questions about flibanserin, please talk with your doctor, nurse, pharmacist, or other health care provider.
  • If you think there has been an overdose, call your poison control center or get medical care right away. Be ready to tell or show what was taken, how much, and when it happened.

Further information

Always consult your healthcare provider to ensure the information displayed on this page applies to your personal circumstances.