Generous advice your specialist before taking any medicine. Flat name: atenolol Brand names: Tenormin What is atenolol? Atenolol is in a social event of solutions called beta-blockers. Beta-blockers impact the heart and stream (blood travel through veins and veins). Atenolol is used to treat angina (midsection hurt) and (hypertension). It is similarly used to treat or deflect heart ambush. Atenolol may moreover be used for purposes other than those recorded in this pharmaceutical helper.