Detailed case histories of attempted suicide by ingestion of sodium monofluoroacetate (NaFA) are provided. Results of biochemistry are illustrated in table form & include highest values of RFT, results of blood & urine studies, arterial blood gases & biochemistry post-NaFA ingestion. Acute renal failure was found in 3 out 0f 5 cases & 2 were in frank uremia. 5 ref. (NBB)