Which group of medications includes agents indicated for post-MI treatment?

Beta-blockers are a key component of post-MI treatment due to their ability to reduce myocardial oxygen demand by lowering heart rate and blood pressure. After a myocardial infarction (MI), it is critical to minimize the strain on the heart and prevent further damage. Beta-blockers achieve this by blocking the effects of adrenaline on the heart, which helps to improve survival rates in patients after an MI. Additionally, these medications may help in preventing the recurrence of heart attacks by addressing other related cardiovascular risk factors.

The other medication classes mentioned do play roles in various cardiovascular conditions, but they are not typically the primary agents concentrated on for post-MI care in the same way that beta-blockers are. For example, coronary vasodilators can help alleviate symptoms of angina but are not specifically indicated for post-MI; calcium channel blockers manage hypertension and angina but do not have the same substantial evidence supporting their use in post-MI treatment; and anticoagulants are primarily used to prevent blood clots, which may be important in acute settings, but they don't directly improve survival or manage heart rate and myocardial demand like beta-blockers do.