A widely used diabetes medication may have more medical uses than doctors first thought as scientists discover it may be able to prevent long covid, but there’s a catch. It needs to be taken early in order to have a significant effect , which could cut the risk of long-covid by 40% to 50%. Metformin is normally used to treat type 2 diabetes and a handful of other conditions. It’s main purpose is to increase insulin sensitivity, however, since the 2000s researchers have found it also has an

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