title: Letter: Emergency treatment of hypertensive crisis following clonidine withdrawal.
mesh_terms: D003000:Clonidine / Q000627:therapeutic use*; D006801:Humans; D006973:Hypertension / Q000188:drug therapy*; D007741:Labetalol / Q000627:therapeutic use; D010673:Pheochromocytoma / Q000150:complications; D013375:Substance Withdrawal Syndrome
chemical_list: D003000:Clonidine; D007741:Labetalol