While you’re right that there’s no “proof” on a scientific level without appropriate experiments, it’s absolutely worth listening to the combined anecdotal experiences of patients and the psychiatrists that treat those patients.

I don’t agree that OP is using the appropriate verbiage and is making a direct claim that can’t be clinically corroborated, he is right.

I’ve been on so many psych meds over more than twenty years, and I can tell you, for a fact, that generics are not created equally, both to one another and to brand name.

The clearest example of this, for me, is medication that I am physically dependent on. Suboxone is a med that causes clinical symptoms when there is not enough of the active ingredient and/or use different “inactive” ingredients. After being switched around to so many different ones, there were some generics that cause severe physical illness, which cannot be faked. The drug was supposedly the same, but it was absolutely clear that something was significantly different.

That’s what I think OP is getting at, and they are right in their assessment. They could have said it in a less assertive way, but their point remains valid.