DEA schedule
Is zafirlukast a controlled substance?
Federal schedule for zafirlukast from the FDA NDC directory, checked against the DEA controlled substances list.
Source: FDA NDC Directory file dated 2026-10-22. Publisher page
No. Zafirlukast is not a federally controlled substance. None of its FDA NDC listings carries a DEA schedule, and zafirlukast is not on the DEA controlled substances list.
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Schedule check
| Source | What it lists |
|---|---|
| FDA NDC directory | 12 prescription listings from 7 labelers, none with a DEA schedule |
| DEA controlled substances list | zafirlukast is not on the list |
Zafirlukast NDC listings
| NDC | Product | Form | Strength | Labeler | DEA schedule |
|---|---|---|---|---|---|
| 42291-970 | Zafirlukast | tablet, coated | 10 mg/1 | AvKARE | None |
| 42291-971 | Zafirlukast | tablet, coated | 20 mg/1 | AvKARE | None |
| 64380-187 | Zafirlukast | tablet, coated | 10 mg/1 | Strides Pharma Science Limited | None |
| 64380-188 | Zafirlukast | tablet, coated | 20 mg/1 | Strides Pharma Science Limited | None |
| 31722-007 | Zafirlukast | tablet, film coated | 10 mg/1 | Camber Pharmaceuticals, Inc. | None |
| 55111-625 | Zafirlukast | tablet, film coated | 10 mg/1 | Dr. Reddys Laboratories Limited | None |
| 59651-291 | Zafirlukast | tablet, film coated | 10 mg/1 | Aurobindo Pharma Limited | None |
| 31722-008 | Zafirlukast | tablet, film coated | 20 mg/1 | Camber Pharmaceuticals, Inc. | None |
| 55111-626 | Zafirlukast | tablet, film coated | 20 mg/1 | Dr. Reddys Laboratories Limited | None |
| 59651-292 | Zafirlukast | tablet, film coated | 20 mg/1 | Aurobindo Pharma Limited | None |
| 68084-059 | Zafirlukast | tablet, film coated | 20 mg/1 | American Health Packaging | None |
| 72162-2361 | Zafirlukast | tablet, film coated | 20 mg/1 | Bryant Ranch Prepack | None |
Questions
Is zafirlukast a controlled substance?
No. Zafirlukast is not a federally controlled substance. None of its FDA NDC listings carries a DEA schedule, and zafirlukast is not on the DEA controlled substances list.
Is zafirlukast a narcotic?
No. Zafirlukast is not on the DEA controlled substances list, so the DEA does not classify it as a narcotic. Its FDA established pharmacologic class is Leukotriene Receptor Antagonist.
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.