" "@en . . . "Buforminum"@en . "withdrawn"@en . "Buformine"@en . . . . . . . "692-13-7"@en . . . . . . . . "Humans and other mammals"@en . . . . . . "Buformin is an anti-diabetic drug of the biguanide class, chemically related to metformin and phenformin. It was withdrawn from the market in most countries due to a high risk of causing lactic acidosis."@en . "Buformin"@en . . . . . . . . . . "# Verdonck LF, Sangster B, van Heijst AN, de Groot G, Maes RA: Buformin concentrations in a case of fatal lactic acidosis. Diabetologia. 1981;20(1):45-6. \"Pubmed\":http://www.ncbi.nlm.nih.gov/pubmed/7202882 # Deppermann D, Heidland A, Ritz E, Horl W: [Lactic acidosis--a possible complication in buformin-treated diabetics (author's transl)] Klin Wochenschr. 1978 Sep 1;56(17):843-53. \"Pubmed\":http://www.ncbi.nlm.nih.gov/pubmed/713413"@en . "Shapiro, S.L.; US. Patent 2,961,377; November 22,1960; assigned to U.S.Vitamin & Pharmaceutical Corp. "@en . " "@en . . . . . . "1-Butylbiguanide"@en . "Buformina"@en . . . .