Captopril-induced acute renal artery thrombosis and persistent anuria in a patient with documented pre-existing renal artery stenosis and renal failure.

We describe an elderly man, with pre-existing renal failure and atheromatous renal artery stenosis, who developed persistent anuria due to renal artery thrombosis after acute hypotension following captopril administration. Caution should be used when captopril is first administered to patients with impaired renal function in whom renal artery stenosis is known or suspected.