DEA schedule
Is liothyronine a controlled substance?
Federal schedule for liothyronine from the FDA NDC directory, checked against the DEA controlled substances list.
Source: FDA NDC Directory file dated 2026-10-22. Publisher page
No. Liothyronine is not a federally controlled substance. None of its FDA NDC listings carries a DEA schedule, and liothyronine is not on the DEA controlled substances list.
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Schedule check
| Source | What it lists |
|---|---|
| FDA NDC directory | 51 prescription listings from 19 labelers, none with a DEA schedule |
| DEA controlled substances list | liothyronine is not on the list |
Liothyronine NDC listings
| NDC | Product | Form | Strength | Labeler | DEA schedule |
|---|---|---|---|---|---|
| 60793-116 | Cytomel | tablet | 25 ug/1 | Pfizer Laboratories Div Pfizer Inc | None |
| 60793-115 | Cytomel | tablet | 5 ug/1 | Pfizer Laboratories Div Pfizer Inc | None |
| 60793-117 | Cytomel | tablet | 50 ug/1 | Pfizer Laboratories Div Pfizer Inc | None |
| 42794-132 | Liomny | tablet | 25 ug/1 | SIGMAPHARM LABORATORIES, LLC | None |
| 42794-131 | Liomny | tablet | 5 ug/1 | SIGMAPHARM LABORATORIES, LLC | None |
| 42794-133 | Liomny | tablet | 50 ug/1 | SIGMAPHARM LABORATORIES, LLC | None |
| 39822-0151 | Liothyronine Sodium | injection, solution | 10 ug/mL | XGen Pharmaceuticals DJB, Inc. | None |
| 0093-2178 | Liothyronine Sodium | tablet | 25 ug/1 | Teva Pharmaceuticals USA, Inc. | None |
| 16714-167 | Liothyronine sodium | tablet | 25 ug/1 | Northstar Rx LLC | None |
| 42794-019 | Liothyronine Sodium | tablet | 25 ug/1 | SIGMAPHARM LABORATORIES, LLC | None |
| 43063-884 | Liothyronine Sodium | tablet | 25 ug/1 | PD-Rx Pharmaceuticals, Inc. | None |
| 59762-1207 | Liothyronine Sodium | tablet | 25 ug/1 | Mylan Pharmaceuticals Inc. | None |
| 62756-590 | liothyronine sodium | tablet | 25 ug/1 | Sun Pharmaceutical Industries, Inc. | None |
| 68382-583 | Liothyronine sodium | tablet | 25 ug/1 | Zydus Pharmaceuticals (USA) Inc. | None |
| 70377-115 | Liothyronine sodium | tablet | 25 ug/1 | Biocon Pharma Inc. | None |
| 70771-1607 | Liothyronine sodium | tablet | 25 ug/1 | Zydus Lifesciences Limited | None |
| 71335-0166 | Liothyronine Sodium | tablet | 25 ug/1 | Bryant Ranch Prepack | None |
| 71335-1943 | Liothyronine sodium | tablet | 25 ug/1 | Bryant Ranch Prepack | None |
| 75907-001 | Liothyronine Sodium | tablet | 25 ug/1 | Dr. Reddy's Labratories Inc. | None |
| 87063-081 | Liothyronine Sodium | tablet | 25 ug/1 | ASCLEMED USA INC. | None |
| 0093-2179 | Liothyronine Sodium | tablet | 5 ug/1 | Teva Pharmaceuticals USA, Inc. | None |
| 16714-166 | Liothyronine sodium | tablet | 5 ug/1 | Northstar Rx LLC | None |
| 42794-018 | Liothyronine Sodium | tablet | 5 ug/1 | SIGMAPHARM LABORATORIES, LLC | None |
| 50090-3131 | Liothyronine Sodium | tablet | 5 ug/1 | A-S Medication Solutions | None |
| 50090-5586 | Liothyronine sodium | tablet | 5 ug/1 | A-S Medication Solutions | None |
| 50090-7518 | liothyronine sodium | tablet | 5 ug/1 | A-S Medication Solutions | None |
| 51407-384 | Liothyronine Sodium | tablet | 5 ug/1 | Golden State Medical Supply, Inc. | None |
| 59762-1206 | Liothyronine Sodium | tablet | 5 ug/1 | Mylan Pharmaceuticals Inc. | None |
| 62756-589 | liothyronine sodium | tablet | 5 ug/1 | Sun Pharmaceutical Industries, Inc. | None |
| 68071-3571 | Liothyronine Sodium | tablet | 5 ug/1 | NuCare Pharmaceuticals,Inc. | None |
| 68382-582 | Liothyronine sodium | tablet | 5 ug/1 | Zydus Pharmaceuticals (USA) Inc. | None |
| 68788-7269 | Liothyronine Sodium | tablet | 5 ug/1 | Preferred Pharmaceuticals Inc. | None |
| 70377-114 | Liothyronine sodium | tablet | 5 ug/1 | Biocon Pharma Inc. | None |
| 70771-1606 | Liothyronine sodium | tablet | 5 ug/1 | Zydus Lifesciences Limited | None |
| 71205-150 | Liothyronine Sodium | tablet | 5 ug/1 | Proficient Rx LP | None |
| 71335-0341 | Liothyronine Sodium | tablet | 5 ug/1 | Bryant Ranch Prepack | None |
| 71335-2001 | Liothyronine sodium | tablet | 5 ug/1 | Bryant Ranch Prepack | None |
| 75907-039 | Liothyronine Sodium | tablet | 5 ug/1 | Dr. Reddy's Labratories Inc. | None |
| 87063-080 | Liothyronine Sodium | tablet | 5 ug/1 | ASCLEMED USA INC. | None |
| 0093-2180 | Liothyronine Sodium | tablet | 50 ug/1 | Teva Pharmaceuticals USA, Inc. | None |
Showing 40 of 51 listings.
Questions
Is liothyronine a controlled substance?
No. Liothyronine is not a federally controlled substance. None of its FDA NDC listings carries a DEA schedule, and liothyronine is not on the DEA controlled substances list.
Is liothyronine a narcotic?
No. Liothyronine is not on the DEA controlled substances list, so the DEA does not classify it as a narcotic. Its FDA established pharmacologic class is l-Triiodothyronine.
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.