Approximately 50% of dicloxacillin is excreted unchanged in the urine.
If the normal dosage schedule for dicloxacillin is 125 mg q6h, a patient with renal function 20% of normal should receive:
A . 25 mg q6h
B . 31.25 mg q6h
C . 62.5 mg q6h
D . 75 mg q6h
E . 125 mg q12h
Answer: D