Beta blockers are available by prescription only. They are commonly used to treat high blood pressure, irregular heartbeat, angina and many other medical conditions. Beta blockers help to open blood vessels to improve blood flow and block the hormone epinephrine.
Beta blockers change how cells respond to the signals sent by the central nervous system. A number of different beta blockers are available, but all require a prescription. A few of the common ones include Metoprolol, Atenolol, Propranolol, Sotalol and Timolol. Common side effects of beta blockers include cold hands and feet, swollen ankles, slow heartbeat, joint pain and difficulty breathing.