Accordingly, administration of phenformin was begun, and the patient was subsequently maintained on phenformin exclusively for the 3 years before admission. While she was taking 200 mg.

Phenformin, the other previously available biguanide, was withdrawn from the market in 1977 because of an association with lactic acidosis. Buformin, another biguanide, is not available in the ...

Lidia Ghisdal, MD; Steven Van Laecke, MD; Marc J. Abramowicz, MD, PHD; Raymond Vanholder, MD, PHD; Daniel Abramowicz, MD, PHD ...