Snapshot A 50-year-old man with a past medical history of renal failure and dilated cardiomyopathy presents to the emergency room for nausea, vomiting, and blurry vision. He noticed that previously white objects now look yellow. He was recently started on digoxin. An echocardiogram reveals an atrioventricular block. He is found to be hyperkalemic. He is given an antidote for suspected digoxin toxicity. Introduction Drug login to view 1 more bullet Mechanism of action login to view 10 more bullets Clinical use login to view 3 more bullets Toxicity Toxicity can be fatal Clinical manifestations login to view 11 more bullets Risk factors for severe toxicity login to view 13 more bullets Evaluation login to view 3 more bullets Treatment login to view 4 more bullets