The Serotonin Reuptake Inhibitor (SRI) story starts in 1969 with Arvid Carlsson (above) who created Zelmid, the first SRI, after listening to people on antidepressants. He linked an anxiolytic effect some older drugs have to the serotonin system. The SRIs aimed at exploring that effect - Normality and Antidepressant Dysregulation. Fluoxetine (Prozac). sertraline (Zoloft). paroxetine