[Acute interstitial nephritis of fluindione: about three cases].

Acute interstitial nephritis is a frequent cause of acute renal failure, representing about 10% of all biopsied cases. Early recognition of drug-induced acute immunoallergic interstitial nephritis prevents the development of severe chronic renal injury. The list of imputable drugs includes phenindione, a vitamin K antagonist. Fluindione which is also an indanedione derivative is another vitamin K antagonist. We report three biopsy-proved cases of fluindione related acute interstitial nephritis with recovery of renal function after drug withdrawal and prednisone therapy.