Sublingual nitroglycerin can provide rapid relief of pain symptoms and end pain episodes. For nitrates it is not recommended to take too much sublingual at one time to avoid triggering hypotension. Use this medication with caution in patients with the presence of glaucoma. If the presence of right ventricular myocardial infarction in the current patient is highly considered, the application of such drugs is not recommended. In addition to relieving the symptoms of angina pectoris, nitroglycerin can also be used to treat pulmonary hypertension and acute myocardial infarction. It is important to monitor blood pressure and heart rate during administration. Some patients may experience a rapid heartbeat, facial flushing, and dilated headache after using these drugs, and slowing down the rate of nitroglycerin drip or reducing the dose taken can help prevent adverse reactions.