Get emergency medical help if you have signs of an allergic reaction to glipizide: hives; difficulty breathing; swelling of your face, lips, tongue, or throat.
Call your doctor at once if you have symptoms of low blood sugar:
headache, irritability
sweating, fast heart rate;
dizziness, nausea; or
hunger, feeling anxious or shaky.
Common glipizide side effects may include:
diarrhea, constipation, gas;
dizziness, drowsiness;
tremors; or
skin rash, redness, or itching.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Glipizide side effects (more detail)
