Review Question - QID 215171

A 59-year-old man presents to his primary care physician for abdominal pain and foul-smelling diarrhea that has persisted for the past 2 years. The patient has a medical history of alcoholism and has been admitted to the hospital multiple times for withdrawal, abdominal pain, and traumatic injuries from his drinking. The patient states that his last drink was more than 1 year ago. His temperature is 99.3°F (37.4°C), blood pressure is 115/78 mmHg, pulse is 78/min, respirations are 15/min, and oxygen saturation is 99% on room air. Physical exam reveals a non-tender, non-distended abdomen. Laboratory studies are notable for a serum calcium of 7.0 mg/dL. A computed tomography (CT) scan of the abdomen is performed as seen in Figure A. A Sudan Black stain of the patient’s stool is positive. Which of the following is the most appropriate treatment for the underlying cause of this patient’s diarrhea?