Phenformin-Associated Lactic Acidosis Due to Imported Phenformin

To emphasize the continued incidence of phenformin-associated lactic acidosis.

We report a case of phenformin-associated lactic acidosis in a Chinese man who received phenformin while in China. Diagnosis was made; the patient was treated appropriately and survived.

Phenformin-associated lactic acidosis may still occur in the U.S.