5-Methoxytryptamine, nonselective serotonin receptor agonist that lacks affinity for the 5-HT3 receptor;5-Methoxytryptamine, nonselective serotonin receptor agonist that lacks affinity for the 5-HT3 receptor5-Methoxytryptamine was used as an agonist in the study of pharmacological profile of the 5-hydroxytryptamine 1 receptor