A 67-year-old man has a creatinine of 2.2 mg/dL. He has a history of hypertension treated with hydrochlorothiazide. Vitals are normal. Physical examination shows mild suprapubic tenderness. Which of the following medications should most likely be avoided in this patient?
Chloramphenicol
Diphenhydramine
Finasteride
Leuprolide
Tamsulosin
Verapamil
