No, I reckon antidepressants are like antihistamines, because early antidepressants were discovered through antihistamine research.Either way. Guy reckons it's like an allergy, so why not just get OTC meds for it?
But I get your issue, only psychiatric medication isn’t so well understood that I’d trust a psychiatrist in the same way I’d trust a GP or another specialist. Antidepressants are basically a sledgehammer where a scalpel is required, not a precise science. Psychiatrists will try a few different medications on you until they find one that works, and then when they do, the effects might fizzle out two weeks later and they’ll have no idea why. Brains are just too complex.