Take the missed dose as soon as you remember. However, it is almost time for your next dose, skip the missed dose and take only the next regularly scheduled dose. Do not take a double dose of this medicine.
What happens if I overdose?
Seek emergency medical attention if you suspect an overdose.

Symptoms of a glyburide overdose include hunger, nausea, anxiety, cold sweats, weakness, drowsiness, unconsciousness, and coma.
What should I avoid while taking glyburide?

Follow diet, medication, and exercise routines closely. Change any of these things can affect blood sugar levels.
Avoid alcohol. It lowers blood glucose and May interfere with the treatment of diabetes.

Talk to your doctor and dentist that you take this medication before undergoing surgery.

Do not take prescription, over-the-counter, or herbal cough, cold, allergy, pain, weight loss or medicines without first talking to your doctor.