The probable mechanism of action of Baloxavir Marboxil?
a. HMG-CoA inhibitor
b. Neuraminidase inhibitor
c. Cap-dependent endonuclease inhibitor
d. DNA dependent RNA polymerase inhibitor
e. PABA inhibitor
Answer: (c) The active ingredient found in Xofluza (Baloxavir marboxil) is Baloxavir marboxil. Xofluza (Baloxavir marboxil) is a polymerase acidic (PA) endonuclease inhibitor.
Baloxavir marboxil is a prodrug that is converted by hydrolysis to baloxavir, the active form that exerts anti-influenza virus activity. Baloxavir inhibits the endonuclease activity of the polymerase acidic (PA) protein, an influenza virus-specific enzyme in the viral RNA polymerase complex required for viral gene transcription, resulting in inhibition of influenza virus replication.