well here's what's interesting. the ones i'm on are SNRIs i think....and they have a specific effect on serotonin...and i'm not sure the benefit. SSRIs seem to not discriminate between "good" serotonin and "bad" serotonin...but SNRIs like i'm on DO. BUT i recently started taking ashwaganda, which according to my non-doctor research increases serotonin in the brain in a non discriminatory way similar to SSRIs (but that's where similarities stop) and i'm noticing positive effects on my fluency there. i was on Risperidone (i was misdiagnosed as bipolar) and abilify (also a treatment for bipolar) and they helped my stutter but gave me awful side effects and i didn't need them because i didn't have bipolar disorder. theyre very bad for you long term.