Calcium Channel Blockers (CCBs) are a class of medications that help relax and widen blood vessels by blocking calcium from entering the cells of the heart and blood vessel walls. This action lowers blood pressure and reduces the heart's workload, making them useful in treating conditions like hypertension and angina. CCBs can also help manage certain heart rhythm disorders. They come in various forms, including immediate-release and extended-release versions, allowing for flexibility in treatment. Common examples of CCBs include amlodipine and diltiazem, which are often prescribed based on individual patient needs.