Digoxin toxicity is a poisoning that occurs when excess doses of digoxin (from foxglove plants of the genus Digitalis) are consumed acutely or over an extended period. The classic features of digoxin toxicity are nonspecific: fatigue, blurred vision, change in color vision (e.g. "yellow vision"), anorexia, nausea, vomiting, diarrhea, abdominal pain, headache, dizziness, confusion, delirium. It is also associated with characteristic cardiac arrhythmias.