DEA schedule
Is Matzim LA a controlled substance?
Matzim LA contains diltiazem. Federal schedule from the FDA NDC directory, checked against the DEA controlled substances list.
Source: FDA NDC Directory file dated 2026-10-22. Publisher page
No. Matzim LA (diltiazem) is not a federally controlled substance. None of its FDA NDC listings carries a DEA schedule, and diltiazem is not on the DEA controlled substances list.
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Schedule check
| Source | What it lists |
|---|---|
| FDA NDC directory | 5 prescription listings from 1 labelers, none with a DEA schedule |
| DEA controlled substances list | diltiazem is not on the list |
Matzim LA NDC listings
| NDC | Product | Form | Strength | Labeler | DEA schedule |
|---|---|---|---|---|---|
| 52544-691 | Matzim LA | tablet, extended release | 180 mg/1 | Actavis Pharma, Inc. | None |
| 52544-692 | Matzim LA | tablet, extended release | 240 mg/1 | Actavis Pharma, Inc. | None |
| 52544-693 | Matzim LA | tablet, extended release | 300 mg/1 | Actavis Pharma, Inc. | None |
| 52544-694 | Matzim LA | tablet, extended release | 360 mg/1 | Actavis Pharma, Inc. | None |
| 52544-695 | Matzim LA | tablet, extended release | 420 mg/1 | Actavis Pharma, Inc. | None |
Questions
Is Matzim LA a controlled substance?
No. Matzim LA (diltiazem) is not a federally controlled substance. None of its FDA NDC listings carries a DEA schedule, and diltiazem is not on the DEA controlled substances list.
Is Matzim LA a narcotic?
No. Matzim LA (diltiazem) is not on the DEA controlled substances list, so the DEA does not classify it as a narcotic. Its FDA established pharmacologic class is Calcium Channel Blocker.
Does this page cover state schedules?
No. This page reports the federal schedule only. Some states schedule drugs on their own; check your state board of pharmacy.
More on Matzim LA
- What is Matzim LA used for?FDA label uses
- What is Diltiazem used for?FDA label uses
- Is Diltiazem a controlled substance?Federal schedule
- Generic for Cardizem CDFDA Orange Book
- Generic for Cardizem SRFDA Orange Book
- Generic for Dilacor XRFDA Orange Book
- Generic for TiazacFDA Orange Book
- Generic for CardizemFDA Orange Book
- Generic for Cardizem LAFDA Orange Book
- Calcium Channel Blockers listFDA drug class
- NDC 52544-691Matzim LA NDC record
- NDC 52544-692Matzim LA NDC record
- NDC 52544-693Matzim LA NDC record