Question 1 point
Up to 21% of Asians are ultra-rapid 2D6 metabolizers, leading to:
Question options:
A need to monitor drugs metabolized by 2D6 for toxicity
Increased dosages needed of drugs metabolized by 2D6,
such as the selective serotonin reuptake inhibitors
Decreased conversion of codeine to morphine by CYP 2D6
The need for lowered dosages of drugs, such as beta
blockers
Question 1/1
2 point
Rifampin is a nonspecific CYP450 inducer that may:
Question options:
Lead to toxic levels of rifampin and must be monitored
closely
Cause toxic levels of drugs, such as oral contraceptives,
when coadministered
Induce the metabolism of drugs, such as oral
contraceptives, leading to therapeutic failure
Cause nonspecific changes in drug metabolism
Question 1/1
3 point
Inhibition of P-glycoprotein by a drug such as quinidine may lead to:
Question options:
Decreased therapeutic levels of quinidine
Increased therapeutic levels of quinidine
Decreased levels of a coadministered drug, such as
digoxin, that requires P-glycoprotein for absorption and