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Emil F. Coccaro, MD
Department of Psychiatry Eastern Pennsylvania Psychiatric Institute Medical College of Pennsylvania 3200 Henry Ave Philadelphia, PA 19129

Steven Gabriel, PhD; Theresa Mahon; Joseph Macaluso, MD; Larry J. Siever, MD
Psychiatry Service 116/A Bronx VA Medical Center Department of Psychiatry Mount Sinai School of Medicine 130 W Kingsbridge Rd Bronx, NY 10468

Arch Gen Psychiatry. 1990;47(6):594-595.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

To the Editor.—

The role of serotonin 1 (5-HT-1—like) receptors in the action of psychopharmacologic agents and in psychiatric disorders is an increasing focus of research.¹ However, there are few agents available for clinical use that assess the function of 5-HT-1—like receptors in humans.

Buspirone hydrochloride (Buspar), a nonbenzodiazepine compound currently marketed as an anxiolytic, is reported to have high affinity for the central 5-HT-la receptor.² Hence, examination of neuroendocrine responses (eg, prolactin [PRL], growth hormone [GH], corticotropin [ACTH], cortisol [CORT]) to acute challenge with buspirone^3-6 may enable an assessment of 5-HT-la receptor sensitivity in humans.³ However, since buspirone is reported to have antidopamine activity in some,⁷ although not all,⁸ studies, the PRL response to buspirone challenge, in particular, may be confounded by its action on central dopaminergic neurons. In fact, some have suggested that the PRL response to buspirone challenge is due to . . . [Full Text PDF of this Article]

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