Feeling drowsy and weak after starting diabetes treatment is often due to low blood sugar, medicine side effects, or the body adjusting to new glucose levels. It can also happen if meals are delayed or doses are higher than needed. Checking your blood sugar when you have symptoms and reviewing your medicines with your doctor.

It is not safe to stop Istamet on your own. This medicine helps control your blood sugar, and stopping it suddenly can cause your sugar levels to rise. Speak to your doctor first; they can adjust the dose or change the medicine safely. Lifestyle changes can reduce the need for medicines, but stopping should always be supervised.