<unk> (tablet) is a beta-adrenergic blocker that is FDA approved for the treatment of agina pectoris, hypertension. There is a Black Box Warning for this drug as shown here.  Common adverse reactions include bradyarrhythmia, dizziness, fatigue.
Nadolol 
Bevantolol
Iotrolan
Imolamine
Oxprenolol
Tertatolol
Alprenolol
Betaxolol 