Inhibition of P-Glycoprotein by a Drug Such as Quinidine May

question 7

Multiple Choice

Inhibition of P-glycoprotein by a drug such as quinidine may lead to:

• A)Decreased therapeutic levels of quinidine
• B)Increased therapeutic levels of quinidine
• C)Decreased levels of a coadministered drug, such as digoxin, that requires P-glycoprotein for absorption and elimination
• D)Increased levels of a coadministered drug, such as digoxin, that requires P-glycoprotein for absorption and elimination

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