White grapefruit juice is the best, or a good quality grapefruit seed extract. Either taken 2 hours beforehand should help.
I would not use another pharmaceutical just for the purposes of disabling CYP3A4 because those drugs may have other side effects on their own or cross-react with your drug of choice in unpredictable ways. Grapefruit only disables 3A4 and does nothing else, unless you're allergic to GF.
Also keep in mind that 3A4 will be disabled from 24-36 hours so anything else you take which needs that pathway might get fucked with.