MS-2600

MS-2600

A 25-year-old male patient arrives at the Emergency department complaining of increasing difficulty in breathing and swelling of his mouth and tongue that developed over the last two hours. Upon examination, he displays significant angioedema and signs of impending airway obstruction. The patient was promptly administered intramuscular adrenaline and transferred to the high dependency unit. During the medical history taking, the patient’s mother discloses that he is generally healthy but had recently started taking a new antibiotic prescribed by his GP. What is the likely cause of the patient’s symptoms?