Active ingredient description

Asunaprevir is an orally bioavailable inhibitor of the nonstructural protein 3 (NS3), with potential activity against hepatitis C virus (HCV). Upon administration, asunaprevir binds to the active center of the HCV NS3 and prevents NS3 protease-mediated polyprotein maturation. This disrupts the processing of viral proteins required for HCV replication.

Medicine classification

This medicinal substance has been classified in the anatomical therapeutic chemical (ATC) classification according to its main therapeutic use as follows:

ATC code
Group title
J Antiinfectives for systemic use → J05 Antivirals for systemic use → J05A Direct acting antivirals → J05AP Antivirals for treatment of HCV infections
Discover more medicines within J05AP06

Structural formula

Graphic representation of the active ingredient's molecular structure

Chemical formula: C₃₅H₄₆ClN₅O₉S
Molecular mass: 748.286 g/mol

External identifiers

CAS Substance: 630420-16-5
DrugBank Drug: DB11586
PubChem Compound: 16076883
RxNorm Ingredient: 1652103
SNOMED-CT Concept: 715390003
Asunaprevir (substance)
UNII Identifier: S9X0KRJ00S


Asunaprevir is an active ingredient of these brands:

Singapore (SG)

While we strive to include the brand names of medicines across all countries, our index remains incomplete. Therefore, it is possible that this medicine may also be marketed under different names in other countries.