Final answer:
The common adverse effect for patients using topical nitroglycerin paste is headache due to the dilation of blood vessels.
Step-by-step explanation:
The common adverse effect for patients taking topical nitroglycerin paste is headache. Nitroglycerin is a medication used to relieve and prevent angina, which is chest pain or discomfort caused by insufficient blood flow to the heart. When used topically, it helps to dilate blood vessels, reducing the heart's workload and improving blood flow. However, one of the side effects associated with its use is the dilation of other blood vessels, particularly those in the brain, which can lead to headaches. This side effect is more frequent than others like rash, ventricular tachycardia, or shortness of breath that may be associated with various conditions and side effects of different medications.
It is important for patients to monitor any side effects experienced while using nitroglycerin paste and report them to a healthcare professional, especially if they become severe or persistent. While headaches are common and can sometimes be managed with mild pain relievers, the other listed effects, such as ventricular tachycardia or significant respiratory symptoms, would require immediate medical attention.