9th June 2025

You are asked to review a patient who presents with an itchy rash which developed 72 hours ago.

You are asked to review a patient who presents with an itchy rash which developed 72 hours ago. They were previously well apart from a recent chest infection, for which they received antibiotics, and long-standing osteoarthritis for which they take ibuprofen as and when. Their osteoarthritis has been worse recently, requiring more ibuprofen than they normally take. They have recently been started on a second medication by their GP for high blood pressure, the name of which they cannot remember. Which of the following medications is least commonly associated with urticaria?