Dronabinol levels may be higher if given with saquinavir.
Delavirdine increases saquinavir levels.
Other drugs that induce metabolic enzymes which may decrease saquinavir levels include phenobarbital, phenytoin, dexamethasone, carbamazepine. Saquinavir may act similarly to ketaconazole or itraconazole when given along with astemizole and terfenadine, combinations of which may rarely lead to serious cardiovascular events. Although saquinavir does not act as strongly as keta or itra, the combinations have not been studied. Providers should use alternatives to astemizole and terfenadine while Patients are on saquinavir. 1998 Click here to e-mail us any questions or comments you have about our web site.