Metformin not tied to reduced AF risk: study

Researchers say that despite all of its benefits, metformin appears to not be protective against AF, although randomised trials are needed

Metformin monotherapy is not associated with a reduced risk of AF in patients with newly diagnosed type 2 diabetes, according to an observational study.

Although the 10-year cumulative risk of AF was lower in metformin users than those given other glucose-lowering agents, this was not statistically significant, US researchers found.