Which of the following is 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.