A potent 5-HT1Dβ receptor agonist (EC50 = 68 nM for inhibition of adenylate cyclase activity); selective for 5-HT1Dβ over 5-HT1A for its adenylate cyclase activity (EC50 = >1 μM for 5-HT1A; binds to 5-HT1Dβ, 5-HT1A, 5-HT1B, 5-HT2A, and 5-HT2C receptors in vitro (Kis = 1.2-315 nM); inhibits reovirus-mediated cell death in a dose-dependent manner but has no effect on reovirus attachment or internalization,