tecovirimat will enhance the stage or effect of diazepam by influencing hepatic enzyme CYP2C19 metabolism. Use Caution/Monitor. Tecovirimat is a weak inhibitor of CYP2C8 and CYP2C19. Monitor for adverse consequences if coadministered with delicate substrates of those enzymes.fluvoxamine will enhance the stage or result of diazepam by affecting hepa