Which of the following is a P-glycoprotein inhibitor
A
Rifampicin
B
Phenytoin
C
Griseofulvin
D
Ketoconazole
High-Yield Explanation
Drugs like Cyclosporine, Tacrolimus, Quinidine, Diltiazem, Verapamil, Itraconazole, Ketoconazole, Amiodarone inhibit P-glycoprotein and cause drug toxicity.