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: Pharmacology
Mechanism of action Tianeptin in the brain is - 
Select and explain. 
A. Selective scrotonin reuptake inhibition, B. Selective norepinephrine reuptake inhibition, C. Selective serotonin reuptake enchancer, D. Selective dopamine reuptake inhibition
C: Selective serotonin reuptake enchancer
Answer: C: Selective serotonin reuptake enchancer 
Explanation: Ans. is 'c' i.e., Selective serotonin reuptake enhancer o Tianeptine is an atypical antidepressant. o It increases the uptake of serotonin (Action opposite to SSRI).