“…10 The class of biguanides is generally well-tolerated compared to insulin, is inexpensive, acts by decreasing the insulin resistance, inhibits hepatic gluconeogenesis and opposes the action of glucagon. Their preventive actions on the cardiovascular system were confirmed in 53 observational and experimental studies 16 (Hazard ration HR 0.78, 95%, CI 0.73–0.83, p < 0.00001) as compared to the insulin group. Their main adverse reactions include nausea, abdominal discomfort and some diarrhoea.…”