First of all, welcome...to...bluelight. Oh, you've been here for eight years?
Secondly, I will have zero sympathy for you when you get depressed later on because you abused this substance. Its because of actions such as yours that I have to suffer because doctors are hesitant to prescribe medicines which can be abused, which as a side note I'm beginning to think are usually ones which have superior cocurrent medicinal value. My country hasn't approved tianeptine/amineptine because idiots don't know where to get heroin.
K? K

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Thirdly, your thread might get hijacked, and if not, then destroyed, because...
1: bluelight isn't here to help you get high, especially off a chemical which isn't well-understood, especially in add
2: there is to my knowledge no active thread in add about chemical(s) which have similar mechanism(s) to tianeptine
3: you don't deserve the opinions of our titans if you haven't done your own research first
Tianeptine is a selective serotonin re-uptake enhancer; somehow having an effect counter to that of a re-uptake inhibitor causes an anti-depressant effect too.
I guess everyone's different.
I would hypothesize though that part of the anti-depressant effect of tianeptine would build up over time due to its unique mechanism, as it seems rational to me to concur that the anti-depressant effect is a result of the brain attempting to maintain homeostasis. So tolerance may be positively associated with the anti-depressant effect. Love to speculate. Feel free to correct me, and on any further statements, always

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What else I know about it: its not approved in the united states; it has valid abuse potential, therefore must have dopaminergic potential; it can increase levels of endogenous opiate peptides.
What I learned pretty definitively in a couple minutes: as SSRIs, it has neuroprotective/genic potential; it reduces CRF; its a lot more complicated than SSRE activity; from what I know about the characteristics of drugs with powerful anti-depressant potential, its legit.
http://www.sciencedirect.com/science/article/pii/S0014488612004530
http://rabbit.if-pan.krakow.pl/pjp/pdf/2011/6_1526.pdf
http://www.sciencedirect.com/science/article/pii/S0166432812003907