Flibanserin is a medicine used to treat women who have low sexual desire. It is mainly given to premenopausal women who do not have any other medical or mental reason for low libido. This condition is called Hypoactive Sexual Desire Disorder (HSDD).

Flibanserin is not a hormone and is different from medicines like Viagra. It works on the brain rather than on blood flow. It is sold under the brand name Addyi.

Doctors usually give this medicine when a woman is feeling frustrated or upset due to lack of sexual desire and it is affecting her life and rel

Flibanserin works on certain chemicals in the brain. These chemicals are:

• Dopamine and norepinephrine: These help increase sexual desire.

   

• Serotonin: This chemical can reduce sexual desire.

   

Flibanserin helps increase dopamine and norepinephrine and decrease serotonin. This balance helps improve sexual desire in some women.

It does not work instantly and is not taken just before sexual activity. Women need to take it daily for a few weeks to see the effects.

Like all medicines, Flibanserin can cause side effects. Some are mild, but others can be serious.

Common Side Effects:

• Dizziness

   

• Nausea

   

• Feeling sleepy or tired

   

• Dry mouth

   

• Trouble sleeping

   

Serious Side Effects:

• Very low blood pressure

   

• Fainting (especially if taken with alcohol)

   

• Mood changes like depression

   

• Risk of injury due to dizziness

   

If you feel faint, very dizzy, or have a fast heartbeat, stop taking the medicine and get medical help right away.

Before starting Flibanserin, talk to your doctor about your medical history.

Warnings include:

• Do not drink alcohol at all while taking Flibanserin.

   

• It is not for use in men or postmenopausal women.

   

• Not safe for people with liver problems.

   

• Avoid if you are pregnant or breastfeeding.

   

• Do not drive or operate machines within 6 hours after taking it.

   

• Be careful if you already take medicines that affect brain chemicals.

   

Also, don’t use this medicine just to “boost” sexual performance. It is meant for a specific condition, not for general low interest due to stress, tiredness, or relationship issues.

Flibanserin can interact with many medicines and some foods. These interactions can cause serious problems.

Common Interactions include:

• Alcohol: Can cause very low blood pressure and fainting. Avoid alcohol completely.

   

• Certain antibiotics and antifungals like ketoconazole or erythromycin.

   

• HIV medicines such as ritonavir.

   

• Birth control pills that contain estrogen.

   

• Grapefruit and grapefruit juice: Can increase the level of Flibanserin in the blood and cause side effects.

   

Always tell your doctor about all the medicines, supplements, or herbal products you are taking.

• Recommended Dose: 100 mg at bedtime.

   

• Time to Effect: May take 4 to 8 weeks to show results.

   

• If there is no improvement after 8 weeks, the doctor may stop the treatment.

   

• Do not double dose if you forget to take one.

   

• Avoid taking it with food that slows digestion or increases the drug’s effect, like grapefruit.

   

Always follow your doctor’s instructions and read the label on the bottle carefully.

Flibanserin is a prescription-only medicine. This means:

• You cannot buy it without a doctor’s prescription.

   

• The doctor will ask about your medical history, mental health, and current medications.

   

• You may need regular follow-up visits to check for side effects or changes in desire.

   

Also, because of the risks involved (like low blood pressure and fainting), your doctor will give you detailed instructions and may even ask you to sign a safety agreement.

• What is Flibanserin used for?
  It is used to treat hypoactive sexual desire disorder (HSDD) in premenopausal women who have a persistently low sexual desire that causes distress and is not due to another condition, medication, or relationship problem.

• What is the brand name?
  Addyi®

• What is the active ingredient?
  Flibanserin

• How does Flibanserin work?

  • It acts on certain serotonin, dopamine, and norepinephrine receptors in the brain.

  • It helps restore a healthy balance of chemicals that influence sexual desire and arousal.

• What type of medication is it?
  A centrally acting serotonin 1A agonist and serotonin 2A antagonist.

• How is Flibanserin taken?

  • By mouth, as a 100 mg tablet.

  • Taken once daily at bedtime to minimize dizziness or fainting.

  • If no improvement is seen after 8 weeks, treatment should be discontinued.

• What forms and strengths are available?

  • Tablet, 100 mg strength.

• How long does it take to work?

  • It may take 4 to 8 weeks of consistent use to notice improvement.

• What are the common side effects?

  • Dizziness or fatigue

  • Sleepiness

  • Nausea

  • Dry mouth

  • Insomnia

• Are there serious side effects?
  Yes, possible severe reactions include:

  • Fainting or low blood pressure, especially if taken with alcohol

  • Loss of consciousness

  • Severe drowsiness or sedation

  • Allergic reactions (rash, swelling, trouble breathing)

• Who should not take Flibanserin?

  • Men (not approved for male use)

  • Postmenopausal women

  • Anyone who drinks alcohol regularly or cannot avoid alcohol use

  • Those with liver disease

  • People taking strong or moderate CYP3A4 inhibitors (certain antibiotics, antifungals, or antivirals)

• Can it be used during pregnancy?
  Not recommended unless clearly needed. There is limited data on safety during pregnancy.

• Can it be used while breastfeeding?
  Use with caution — it may pass into breast milk, and effects on infants are unknown.

• Does Flibanserin interact with other medications?
  Yes — it should not be taken with:

  • Alcohol (risk of severe low blood pressure and fainting)

  • CYP3A4 inhibitors (e.g., ketoconazole, erythromycin, ritonavir)

  • CNS depressants (e.g., sleep medications, opioids, sedatives)

• How should I store Flibanserin?

  • Store at room temperature (20–25°C / 68–77°F).

  • Keep away from moisture and direct light.

• Is there a generic available?
  Currently, no generic version is available.

• Where can I get it?

  • Prescription only — available through certified pharmacies under the Addyi Risk Evaluation and Mitigation Strategy (REMS) program.