Introduction Daonil Tablet is a medicine used to treat type 2 diabetes mellitus in adults. It belongs to a group of medicines called sulfonylureas and helps control blood sugar levels in people with diabetes. This helps to prevent serious complications of diabetes like kidney damage and blindness. Daonil Tablet may be used by itself or along with other medicines. It should be taken with food. Take it regularly at the same time each day to get the most benefit. Your doctor will decide what dose is best for you and this may change from time to time according to how it is working. Keep taking this medicine, even if you feel well or your blood sugar levels are controlled. If you stop it without consulting your doctor, your blood sugar levels could rise and put you at risk of kidney damage, blindness, nerve problems, and loss of limbs. Remember that it is only part of a treatment program that should also include a healthy diet, regular exercise, and weight reduction as advised by your doctor.