Buspirone is a serotonin (5-HT(1A)) agonist which stimulates the secretion of cortisol, prolactin & growth hormone in normal volunteers. The concentration of serotonin in the CNS may be abnormally low in various psychiatric disorders. Administration of buspirone to psychiatric pts & the subsequent measurement of their hormone responses may reflect abnormal serotonergic function in these pts as compared to normal volunteers.
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