title: Hypotensive effect of guanfacine in essential hypertension: a comparison with clonidine.
mesh_terms: D000328:Adult; D000959:Antihypertensive Agents / Q000627:therapeutic use*; D001794:Blood Pressure / Q000187:drug effects; D002986:Clinical Trials as Topic; D003000:Clonidine / Q000009:adverse effects / Q000627:therapeutic use*; D016316:Guanfacine; D006146:Guanidines / Q000009:adverse effects / Q000627:therapeutic use*; D006339:Heart Rate / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D008875:Middle Aged; D010648:Phenylacetates / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D000959:Antihypertensive Agents; D006146:Guanidines; D010648:Phenylacetates; D016316:Guanfacine; D003000:Clonidine