Angina is a pain or discomfort in the chest that occurs when the heart does not receive enough blood supply.

Among the most effective and recommended treatments, in addition to rest, are:

• Nitroglycerin: Dilates the coronary arteries and pain usually reverses in minutes. It is taken by placing a tablet under the tongue or also in spray. Headache may occur as a side effect.
• Calcium antagonists or blockers of calcium channels: They prevent the entry of calcium into the cells of the heart. This decreases the tendency of the coronary arteries to narrow and the effort made by the heart, so that their oxygen needs also influence.
• Beta-blockers: They act by blocking many effects of adrenaline on the body, in particular the stimulating effect on the heart. The result is that the heart beats more slowly and with less force, and therefore needs less oxygen. They also lower blood pressure.
• Surgery: In case of unstable angina or stable angina that resists treatment with medications, you can correct the obstruction of the coronary vessels, either by bypass (bypass) or, in some cases, by coronary angioplasty.

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