Enfuvirtide
FDA-approved HIV fusion inhibitorEstablished
FDA-approved HIV-1 fusion inhibitor (Fuzeon) for treatment-experienced patients. 90 mg subcutaneous twice daily with other antiretrovirals.
For research use only.
Key Facts
- CAS
- 159519-65-0
- Molecular Weight (MW)
- 4491.4 g/mol
- Half-life
- ~3.8 hours (sc)
- Unit
- mcg
- Administration Route
- Subcutaneous
- Frequency
- Twice daily
- Last updated
- 8/23/2026
- Targets
- HIV-1 gp41
Overview
FDA-approved HIV-1 fusion inhibitor (Fuzeon) for treatment-experienced patients. 90 mg subcutaneous twice daily with other antiretrovirals.
Protocol
- Dosage Range
- 90 mg twice daily
- Frequency
- Twice daily
- Cycle
- Long-term use as part of antiretroviral regimen
- Administration Route
- Subcutaneous
- Reconstitution Guide
- Reconstitute 90 mg vial with 1.1 mL sterile water for injection
Science
Mechanism of Action
36-amino-acid peptide that binds gp41 HR1, blocking six-helix-bundle formation and HIV-1 fusion with the host cell membrane.
Targets
HIV-1 gp41
Studies
- TORO enfuvirtide trialsโ Journal/year not available
Benefits
Salvage HIV therapyNovel fusion-inhibitor class
Potential Side Effects
- Injection-site reactions (very common)
- Pneumonia signal
- Hypersensitivity
References
- FDA label โ FuzeonExternal link ยท Year โ