Final answer:
Nitroglycerin (nitrates) works by releasing nitric oxide, a vasodilator, which improves blood flow to the heart. Adverse effects may include headache, dizziness, flushing, and low blood pressure.
Step-by-step explanation:
Nitroglycerin (nitrates) works by releasing nitric oxide, which is a known vasodilator. This causes the blood vessels in the coronary arteries to relax and expand, allowing for improved blood flow to the heart. As a result, nitroglycerin provides symptomatic relief in chronic stable angina.
Adverse effects of nitroglycerin can include headache, dizziness, flushing, and low blood pressure. These side effects are generally mild and transient.