Aminoindans (AI) were originally studied as semi-rigid congeners of phenylethylamines, which are psychoactive alkaloids. 5-IAI is a psychoactive analog of p-iodoamphetamine and is indistinguishable, in its physiological effects, from 3,4-methylenedioxymethamphetamine in rats. A single 40 mg/kg dose of 5-IAI significantly reduces both serotonin uptake sites and hippocampal serotonin levels in rats. This product is intended for forensic applications.