Controlled-Substance Inventory Due Date and Count Method
When the next controlled-substance inventory is due.
Open the tool → Runs in your browser. Data leaves only if you deliberately send a problem report from the interactive tool.
Example
- Date of the last inventory
- 2025-05-01
- Schedule of the drug in the container
- Schedule III, IV or V
- Container
- Opened commercial container
- Tablets or capsules the container holds
- 500
Result: Next controlled-substance inventory no later than May 1, 2027.
The tool opens with these values already filled in. Replace them with your own.
What you enter
- Date of the last inventory (YYYY-MM-DD)
- State inventory interval, if shorter
- Schedule of the drug in the container
- Container
- Tablets or capsules the container holds
- Effective date of a rule newly scheduling the drug (YYYY-MM-DD)
How this is calculated
Citation
21 CFR 1304.11(a), (c), (d) and (e)(6): a new inventory within two years of the last; an exact count for an opened Schedule I or II container and an estimate for Schedule III to V unless it holds more than 1,000 tablets or capsules. 21 CFR 1304.04(a): kept at least 2 years. Read the sources: 21 CFR 1304.11 ↗, 21 CFR 1304.04 ↗
A reference and educational tool. Not medical, legal, or financial advice, and not a substitute for clinician judgment.