16th February 2025

A 65-year-old gentleman of African descent attends the emergency department with non-pitting swelling of the face, particularly the eyelids, lips, and tongue.

A 65-year-old gentleman of African descent attends the emergency department with non-pitting swelling of the face, particularly the eyelids, lips, and tongue. It developed over 2 hours. He has had multiple similar occurrences over the last two months since a medication change, each lasting approximately 3 days. He has a background of hypertension and type II diabetes mellitus.

Which medication is the most likely cause of his presentation?

Select the SINGLE most appropriate option from the list below. Select ONE option only.