Multifunctional serotonin agonist/antagonist (HSDD)
Flibanserin with liver impairment: dosing and safety
The liver is the main site of metabolism for many medications including Flibanserin (Flibanserin). Liver impairment slows clearance and can raise plasma levels of Flibanserin above the intended range, amplifying side effects. People with chronic liver disease, recent hepatitis or significantly raised liver enzymes need a tailored approach to Flibanserin at 100mg.
Why liver function matters
Flibanserin undergoes hepatic metabolism through CYP enzymes for many medications. Reduced hepatic function slows this metabolism, prolongs the half-life and raises plasma concentrations. Flibanserin acts as a serotonin 5-HT1A receptor agonist and 5-HT2A receptor antagonist, with additional effects on dopamine and norepinephrine signalling. The prescribing information typically classifies severity by Child-Pugh score (A mild, B moderate, C severe) and gives dose adjustments accordingly.
Practical guidance
According to the prescribing information for Flibanserin, baseline liver function tests are recommended before starting Flibanserin in any patient with risk factors and periodically during treatment in chronic liver disease. Severe impairment (Child-Pugh C) often contraindicates Flibanserin or requires substantial dose reduction; mild impairment usually permits standard 100mg with closer monitoring.
Frequently asked questions
Is Flibanserin safe with liver problems? ▾
Mild liver impairment typically allows Flibanserin at standard or slightly reduced 100mg with monitoring. Moderate-to-severe impairment often requires substantial dose reduction. Severe (Child-Pugh C) impairment may contraindicate Flibanserin entirely.
Will Flibanserin damage my liver? ▾
Most Multifunctional serotonin agonist/antagonist (HSDD) medications at standard 100mg doses do not harm a healthy liver. A small subset can produce drug-induced liver injury in susceptible patients, usually detected by routine ALT/AST monitoring. The prescribing information for Flibanserin lists the documented risk.
Products containing Flibanserin
More on Flibanserin
- With alcoholFlibanserin and alcohol — is it safe to drink?
- With foodShould Flibanserin be taken with food?
- Side effectsFlibanserin side effects: common, rare and warning signs
- Dosage guideFlibanserin dosage guide: how much to take and when
- OnsetHow fast does Flibanserin start working?
- DurationHow long does Flibanserin last?
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