title: Stimulation of cerebral histamine H2 receptors by clonidine.
mesh_terms: D000818:Animals; D003000:Clonidine / Q000494:pharmacology*; D000242:Cyclic AMP / Q000378:metabolism*; D006168:Guinea Pigs; D006624:Hippocampus / Q000187:drug effects* / Q000378:metabolism; D006632:Histamine / Q000378:metabolism*; D008297:Male; D011955:Receptors, Drug
chemical_list: D011955:Receptors, Drug; D006632:Histamine; D000242:Cyclic AMP; D003000:Clonidine