MSFinals-4800

A 50-year-old patient presents for follow-up after being admitted to the hospital. The patient complains of experiencing itchy, raised red bumps on their skin. These symptoms began about 24 hours after taking their discharge medication for the first time and have progressively worsened over the past few days. The patient has no prior history of this type of reaction. Upon examination, faint pink raised patches are observed on the trunk and upper arms. Which medication is the most probable cause of the patient’s symptoms?