This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Intravenous Anesthetic Agents, Subject name: Anaesthesia
Which of the following intravenous anaesthetic agent interact with Tricyclic antidepressant. 
Select and explain. 
A. Ketamine, B. Thiopentone, C. Propofol, D. Etomidate
A: Ketamine
Answer: A: Ketamine 
Explanation: ketamine can interact with the tricyclic antidepressant and can cause arrythmia thus if a patient is on tricyclic antidepressant we have to stop it 3 weeks prior to surgery.