Let's take a minute to talk about your medication. 
This is glipizide XL. It treats diabetes by helping to improve blood sugar control. Controlling your blood sugar is important. Over time, it can postpone or prevent serious health problems. 
Glipizide comes in many forms; you were prescribed the extended-release tablet. It is often taken one time each day, with breakfast. You should take it exactly how your doctor tells you to. It is important to swallow the tablet whole and never cut, chew, crush or dissolve it. It is normal if you see the empty shell from the tablet in your stool. For more information regarding how to take this medicine and what to do if you miss a dose, read the "Patient Information Sheet".
Most people tolerate this medicine well. Common side effects include diarrhea, gassiness, and tremors. It can also make you feel nervous or dizzy. You should wait until you know how this medicine affects you before you do activities that require you to be alert, like driving. These effects are normal if they are mild and should go away. If these or other side effects become reasons you want to stop taking this medicine, please talk to your healthcare team. 
As with any medicine, rare but more serious side effects could occur. With glipizide XL, this includes low blood sugar. Symptoms include feeling shaky, irritable, lightheaded, or sweaty. To help prevent low blood sugar, you should not skip meals, drink alcohol, or over-exercise. Ask your doctor about your risk of low blood sugar, and what to do if it happens. Other rare side effects are possible. You should read the "Patient Information Sheet" to know which symptoms to watch for and when to report changes. Your healthcare team will follow your condition closely.
Glipizide XL can interact with other medicines. You should check with your doctor or pharmacist before taking any other medicines, herbal remedies, or vitamins. 
Women should talk to their doctors before becoming pregnant or breastfeeding while taking this medication.
For best results, take glipizide XL as directed, and follow your doctor's advice about diet, exercise and checking your own blood sugar.