Which class of drugs is commonly prescribed to help manage the frequency of anginal attacks?

Beta-blockers are commonly prescribed to help manage the frequency of anginal attacks due to their ability to reduce the heart's workload and lower oxygen demand. They work by blocking the effects of adrenaline on beta-adrenergic receptors in the heart, leading to a decrease in heart rate and contractility. This results in reduced myocardial oxygen consumption, which is particularly beneficial for patients experiencing angina, as it alleviates the symptoms triggered by physical exertion or stress.

In contrast, anticoagulants are primarily used to prevent blood clots and reduce the risk of cardiovascular events rather than directly managing angina symptoms. Antidepressants are not typically indicated for angina management; they might be used if there is co-existing depression or anxiety, but they do not address the physiological factors contributing to angina. Diuretics can help with fluid management in conditions like heart failure but do not specifically target the underlying mechanisms of angina. Therefore, beta-blockers are the most effective and commonly used class of drugs for this purpose.