microinjection of the selective alpha 2-agonist guanabenz into the anterior hypothalamic area produced depressor and bradycardic responses in shr-s and sprague-dawley rats , while microinjection of the selective alpha 1-agonist phenylephrine into the anterior hypothalamic area had no effect on either blood pressure or heart rate .
C2267005
selective alpha 2-agonist
C0018312
guanabenz