This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Central Nervous system, Subject name: Pharmacology
[{'content': 'Which of the following if combined with rivastagmine, decreases its efficacy? \nSelect and explain. \nA. Selective serotonin reuptake inhibitors, B. Reversible inhibitor of MAO-A, C. Tricyclic antidepressants, D. Atypical antidepressants', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Rivastigmine is a acetylcholinesterase inhibitor REF: KD Tripathi 8th edition', 'role': 'assistant'}]