The uses of RASTINON include: Tolbutamide is used to treat type 2 diabetes (condition in which the body does not use insulin normally and therefore cannot control the amount of sugar in the blood), particularly in people whose diabetes cannot be controlled by diet alone.
Tolbutamide lowers blood sugar by stimulating the pancreas to secrete insulin and helping the body use insulin efficiently. The pancreas must produce insulin for this drug to work.
Tolbutamide is not used to treat type 1 diabetes (condition in which the body does not produce insulin and therefore cannot control the amount of sugar in the blood).
Tolbutamide comes in tablets to take by mouth. It is usually taken several times a day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take tolbutamide exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.