In May 2020, the Food and Drug Administration (FDA) recommended that some makers of metformin extended release remove some of their tablets from the U.S. market. This is because an unacceptable ...

and metformin XR 500mg or 1,000mg. Recommended dose is two tablets once daily with the morning meal, and there is also a boxed warning for lactic acidosis, a rare but serious complication that can ...