Question category: Cardiology
A 69 year old gentleman was being treated for a chest infection with antibiotics. He has previous history of myocardial infarction and as well as the current antibiotic course he is also taking aspirin, atorvastatin and perindopril. He then collapses 2 days after the antibiotics began and was taken to A and E. When you examine him he has a BP of 130/80mmHg, heart rate of 80 bpm and he rest of his exam is unremarkable. You notice however on the cardiac monitor he is having short runs of torsade de points. What is the most likely antibiotic that he has been prescribed?