This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Psychiatry
A patient on t/t for psychiatric disorder takes overdose of a drug, develops bradycardia, hypotension, decreased sweating and salivation. The likely drug is 
Select and explain. 
A. Amitryptilline, B. Lithium, C. Selegiline, D. Amphetamine
A: Amitryptilline
Answer: A: Amitryptilline 
Explanation: A i.e. Amitryptilline