Metformin Hepatotoxicity

  1. M. Deutsch, MD;
  2. D. Kountouras, MD; and
  3. S. P. Dourakis
  1. From Hippocration General Hospital, 11523 Athens, Greece.

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    TO THE EDITOR:

    Background: Approximately 5% of patients with type 2 diabetes mellitus may have mildly elevated serum alanine aminotransferase (ALT) values. In 83% of these patients, ALT levels usually decrease during antidiabetic therapy (1).

    Metformin is an oral biguanide with a potent insulin-sensitizing effect …

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