It's interesting (1) how many drugs have effects on serotonin, even if they're not SSRIs and (2) how different SSRIs and SSRI-adjacent drugs can have notably di

It's interesting (1) how many drugs have effects on serotonin, even if they're not SSRIs and (2) how different SSRIs and SSRI-adjacent drugs can have notably different effects, like how buspirone affects serotonin but is an anti-anxiety drug rather than an antidepressant. There's clearly a lot going on with just that one neurotransmitter! The former can have some unfortunate consequences though, and to make matters worse, it's not always obvious which drugs you need to watch out for. Those "may increase risk of serotonin syndrome" warnings are no joke!