RT Journal A1 Pont A, Rubino JM, Bishop D, Peal R T1 DIabetes mellitus and neuropathy following vacor ingestion in man JF Archives of Internal Medicine JO Archives of Internal Medicine YR 1979 FD February 1 VO 139 IS 2 SP 185 OP 187 DO 10.1001/archinte.1979.03630390039016 UL http://dx.doi.org/10.1001/archinte.1979.03630390039016 AB Two patients ingested Vacor, a rodenticide containing the active ingredient N-3 pyridylmethyl-N′-p-nitrophenyl urea. Both patients developed ketosis-prone diabetes mellitus and severe autonomic neuropathy. Niacinamide therapy given nine hours after Vacor ingestion in one patient and 14 hours after ingestion in the other was not successful in preventing these sequelae. Physicians need to be aware of the toxicity of Vacor, and the potential therapeutic benefit of early niacinamide therapy.(Arch Intern Med 139:185-187, 1979)