Biochem/physiol Actions
Active metabolite of the antimicrobial nitazoxanide (NTZ) with antiparasitic, antiviral and broad-spectrum bacterial pyruvate-ferredoxin oxidoreductase (PFOR) inhibitory efficacy.
Tizoxanide (TIZ) is the active metabolite of the broad-spectrum parasiticidal drug nitazoxanide (NTZ), a noncompetitive inhibitor against bacterial pyruvate-ferredoxin oxidoreductase (PFOR Ki 2 to 10 μM). NTZ deacetylates rapidly to TIZ in plasma (t1/2 ~6 min at 37°C in human plasma) and in the presence of liver microsomes. NTZ is also reported to exhibit antiviral activity against Hepatitis C, Norovirus, Paramyxovirus, Influenza, Vaccinia, and Zika.