What brand names does diltiazem come in?
Diltiazem is sold under multiple brand names that can vary by country and formulation (immediate-release vs. extended-release). Common U.S. brand names people may see include Cardizem and Cartia XT.
What’s the difference between Cardizem and Cartia XT?
Cardizem products are typically immediate-release diltiazem, while Cartia XT is an extended-release version designed to last longer between doses. The exact product lineup can change over time, so checking the specific label (and whether it’s “ER/extended-release” or “XR/XR”) is the safest way to confirm.
How do people usually identify the right diltiazem product?
Look for the formulation on the prescription bottle or package:
- “ER,” “XR,” or “extended-release” usually means a long-acting version like Cartia XT.
- Immediate-release products are often labeled without “ER/XR.”
Are there generic versions?
Yes. Diltiazem is also available as generic diltiazem (same active ingredient), with different brands covering different release formulations.
What should I do if I have a prescription for a specific brand name?
If your prescription specifies a brand (for example, Cartia XT), ask your pharmacist whether a therapeutic substitute exists for the same release type (extended-release vs immediate-release). Substituting between release types can change how the medicine is absorbed and dosed.
Sources
No sources were provided with your question. If you share your country (e.g., U.S., UK, Canada) or the specific label text you have, I can narrow this to the exact brand names used there.