Another treatment for angina is bypass surgery. Pieces of veins or arteries are taken from the legs and sewn into the arteries of the heart to bring blood past a blockage and increase the blood flow to the heart. Bypass surgery is usually done when angioplasty isn't possible or when your doctor feels that surgery is a better choice for you than angioplasty. All medicines may have side effects. Aspirin may cause upset stomach.
Beta blockers cause tiredness and sexual problems in some patients.
Calcium channel blockers may cause constipation and leg swelling. Fortunately, most patients don't have side effects from these medicines. If you have side effects after taking a medicine, tell your doctor. Surgery, such as angioplasty or bypass surgery, also has potential risks. The major risks can include heart attack, stroke or even death.