What are the side effects of tolbutamide?

Hypoglycemia (low blood sugar) is the most common side effect of taking tolbutamide (Tolinase). Nausea, heartburn, and a bloated feeling are also very common side effects. These symptoms might be alleviated by lowering your dose. Itching, redness, and a rash or hives may arise, but may not last very long. If they do, you should contact your doctor. You might be sensitive to bright light or sunlight while taking a sulfonylurea such as tolbutamide. If you experience bruising or bleeding, jaundice, fever, confusion, dark urine, hallucinations, fainting, loss of appetite, dizziness, memory loss, seizures, hyponatremia (low salt), weakness, tiredness, vertigo, malaise, or headaches, call your doctor. Serious side effects require immediate medical attention by calling 911. They include an allergic reaction that causes swelling of the lips, tongue, and throat, constricting the air flow to your lungs.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.