Key takeaways
Diltiazem (Cardizem) and adenosine (Adenocard) are both used to address heart-related issues, but they have different uses and methods of administration. Diltiazem is a calcium channel blocker taken orally to treat chest pain (angina) by slowing your heart rate and relaxing blood vessels. It needs to be taken multiple times a day and can cause side effects like dizziness, swelling in the legs, and tiredness. On the other hand, adenosine is an injectable medication used to treat certain irregular heart rhythms and to diagnose heart problems during stress tests. It works quickly by binding to receptors in your heart to slow down your heart rate and is administered intravenously by a healthcare provider. Common side effects of adenosine include chest pressure, skin flushing, and shortness of breath, but these usually go away quickly since the medication doesn't last long in the body. While diltiazem is available in a generic form, adenosine is typically used in a clinical setting and is not taken at home.
