title: Withdrawing vasodilators.
mesh_terms: D006333:Heart Failure / Q000188:drug therapy; D006801:Humans; D011224:Prazosin / Q000008:administration & dosage*; D011799:Quinazolines / Q000008:administration & dosage*; D013375:Substance Withdrawal Syndrome / Q000517:prevention & control*
chemical_list: D011799:Quinazolines; D011224:Prazosin