title: Beta-blocker withdrawal syndrome?
mesh_terms: D000787:Angina Pectoris / Q000209:etiology; D006801:Humans; D008297:Male; D008790:Metoprolol / Q000008:administration & dosage*; D008875:Middle Aged; D009203:Myocardial Infarction / Q000209:etiology; D011412:Propanolamines / Q000008:administration & dosage*; D012008:Recurrence; D013375:Substance Withdrawal Syndrome; D014693:Ventricular Fibrillation / Q000209:etiology
chemical_list: D011412:Propanolamines; D008790:Metoprolol