National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine active ingredient National Library of Medicine adverse cardiovascular complications National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine www.nlm.nih.gov/medlineplus/druginfo/meds/a682864.html National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine metoprolol National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine MedlinePlus: Metoprolol National Library of Medicine National Library of Medicine National Library of Medicine www.nlm.nih.gov/medlineplus/druginfo/meds/a682864.html National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine MedlinePlus: Metoprolol National Library of Medicine National Library of Medicine a682864 National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine a682864 National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine Metoprolol National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine www.nlm.nih.gov National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine National Library of Medicine Metoprolol: MedlinePlus Drug Information - National ... National Library of Medicine active ingredient a682864