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Table 1 Common medications that can interact with sulfonylureas [1, 2, 5, 6]

From: Unintentional sulfonylurea toxicity due to a drug–drug interaction: a case report

Drug

Mechanism

Effect

Fluconazole, ketoconazole, voriconazole, amiodarone, co-trimoxazole (sulfamethoxazole component), fluoxetine, fluvoxamine, metronidazole

Inhibition of CYP2C9

Hypoglycemia

Carbamazepine, phenobarbital, rifampin, St. John’s wort, dexamethasone

Induction of CYP2C9

Reduced efficacy (hyperglycemia)