tecovirimat will increase the stage or influence of diazepam by affecting hepatic enzyme CYP2C19 metabolism. Use Caution/Keep track of. Tecovirimat is a weak inhibitor of CYP2C8 and CYP2C19. Keep track of for adverse consequences if coadministered with sensitive substrates of these enzymes.ethinylestradiol will improve the level or impact of diazep