An 85-year-old man was admitted to the emergency department with severe hypoglycemia. Hypoglycemia persisted in this patient despite multiple intravenous bolus doses and continuous infusion of glucose. The patient had a history of diabetes mellitus.

A detailed history revealed that the patient was being treated with co-trimoxazole for an uncomplicated urinary tract infection. In addition, he was also under multiple additional drugs for his co-morbidities.

What should be the treatment strategy for this patient?