Glycomet 500 SR Tablet 20'S is used to manage Diabetes. Find Glycomet 500 SR Tablet 20'S uses, substitutes, side effects, composition, directions for use, drug interactions, precautions and buy online at best price. What are the side effects of Glycomet 500 SR Tablet? Side effects of Glycomet 500 SR Tablet include diarrhoea, flatulence (gas), headache, fatigue, heartburn, nausea, constipation and a metallic taste in the mouth. Glycomet 500 SR Tablet is a medicine used to treat type 2 diabetes mellitus. It helps control blood sugar levels and thus prevents serious complications of diabetes. It is also used to treat a menstruation-related disorder known as polycystic ovary syndrome (PCOS) in women.