title: Letter: Intravenous labetalol in severe hypertension.
mesh_terms: D000959:Antihypertensive Agents / Q000008:administration & dosage* / Q000627:therapeutic use; D001794:Blood Pressure / Q000187:drug effects; D002986:Clinical Trials as Topic; D004983:Ethanolamines / Q000008:administration & dosage*; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D007263:Infusions, Parenteral; D007275:Injections, Intravenous; D007741:Labetalol / Q000008:administration & dosage* / Q000627:therapeutic use; D011674:Pulse / Q000187:drug effects
chemical_list: D000959:Antihypertensive Agents; D004983:Ethanolamines; D007741:Labetalol