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Fostemsavir Dosage

Medically reviewed by Last updated on Jul 25, 2023.

Applies to the following strengths: 600 mg

Usual Adult Dose for:

Additional dosage information:

Usual Adult Dose for HIV Infection

600 mg orally twice a day

Use: In combination with other antiretroviral agent(s), for the treatment of HIV-1 infection in heavily treatment-experienced patients with multidrug-resistant HIV-1 infection failing their current antiretroviral regimen due to resistance, intolerance, or safety considerations

Renal Dose Adjustments

Renal dysfunction: No adjustment recommended.

Liver Dose Adjustments

Mild to severe liver dysfunction (Child-Pugh A, B, or C): No adjustment recommended.



Safety and efficacy have not been established in patients younger than 18 years.

Consult WARNINGS section for additional precautions.


Hemodialysis: No adjustment recommended.

Other Comments

Administration advice:

Storage requirements:



Patient advice:

Further information

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