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Common side effects include:

• nausea
• upper abdominal fullness
• heartburn
• rash
• headache
• changes in taste

This is not a complete list of tolbutamide side effects. Ask your doctor or pharmacist for more information.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

If you take too much tolbutamide, call your healthcare provider or local Poison Control Center, or seek emergency medical attention right away.