Collin College Cardiac Drugs Practice Test 2026 – Comprehensive Exam Prep

Diltiazem is categorized as a calcium channel blocker, which is a class of medication that works by inhibiting the influx of calcium ions into vascular smooth muscle and cardiac muscle. This action leads to relaxation of the vascular smooth muscle, resulting in vasodilation, and consequently lowers blood pressure and reduces the workload on the heart.

In addition to its vasodilatory effects, Diltiazem also plays a role in decreasing heart rate and conduction through the atrioventricular (AV) node, making it beneficial in the management of conditions such as hypertension and certain types of angina as well as atrial fibrillation.

Understanding the pharmacological class of a drug helps in comprehending its mechanisms of action, therapeutic uses, and potential side effects, which are crucial for safe and effective patient care.