A 35 year old man is brought to the ER after ingesting an unknown quantity of his antidepressant medication. He's comatose, having intermittent seizures and his EKG is showing sinus tachycardia, 2:1 AV block, and prolonged QRS duration. Which of the following drugs is the most likely cause of these findings?
A- Amitriptyline
B- Busprione
C- Fluoxetine
D- Haloperidol
E- Lithium carbonate
A- Amitriptyline
B- Busprione
C- Fluoxetine
D- Haloperidol
E- Lithium carbonate