the receptor site is located neuronally and is characterized positively by a low affinity for ics 205-930 ( pa2 = 6.5 vs. 5-ht ) and by the following order of agonist potency : 5-ht greater than 5-methoxytryptamine greater than brl 24924 greater than alpha-methyl-5-hydroxytryptamine greater than zacopride = cisapride = 5-carboxamidotryptamine .
C0036751
5-ht
C0000589
methoxytryptamine