Snapshot A 28-year-old man presents to the emergency room after ingesting an unknown amount of his grandfather’s digoxin medication. He reports feeling depressed and ingested a handful of the drug about 1 hour ago. Since then, he states having abdominal pain, nausea, and vomiting. He also discloses that his vision is becoming blurry with yellow halos around objects. He is found to have a K+ of 6.5 mEq/L. He is quickly administered activated charcoal, given the recent ingestion, and started on digoxin antibodies. (Digoxin poisoning) 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 10 more bullets Risk factors for severe toxicity login to view 4 more bullets Evaluation login to view 3 more bullets Treatment login to view 4 more bullets