Multiple Choice: Avoiding drug interactions (drugs, food and alternative medicines)

Question 1.

A 65-year-old man with type 2 diabetes is brought to A&E with a BM of 2.2. These are the drugs that have been brought in with him (his wife thinks there has been a recent change in his medication): glipizide, metformin, ramipril, aspirin, pravastatin, atenolol, amitriptyline, desloratadine.

Which of the following drugs may have interacted with glipizide to cause hypoglycaemia?