title: Centrally acting alpha-agonists. Mechanisms and their role in the therapy of essential hypertension.
mesh_terms: D000818:Animals; D001794:Blood Pressure / Q000187:drug effects; D001923:Brain Chemistry / Q000187:drug effects; D003000:Clonidine / Q000494:pharmacology / Q000627:therapeutic use*; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D009638:Norepinephrine / Q000032:analysis; D051381:Rats; D012018:Reflex / Q000187:drug effects; D013375:Substance Withdrawal Syndrome / Q000209:etiology
chemical_list: D003000:Clonidine; D009638:Norepinephrine