Metformin is commonly prescribed and particularly useful for those who are overweight or those of normal weight whose diabetes cannot be controlled by dietary changes alone. It can be used together with sulphonylureas or another drug such as one of the glitazones to increase the sensitivity of body tissues to insulin. Metformin also increases the utilization of glucose by the tissues. What is the main purpose of prescribing Metformin?
1) To control diabetes in overweight individuals
2) To control diabetes in individuals of normal weight
3) To increase the sensitivity of body tissues to insulin
4) To increase the utilization of glucose by the tissues