4.4 Controlled Substance Inventories: Mississippi Annual Mandate

Controlled-Substance Inventories

Inventory creates the baseline against which purchases and dispositions are reconciled. Federal and Mississippi requirements operate together, and Mississippi’s annual rule is more frequent than the federal biennial rule.

Federal baseline

Under 21 CFR § 1304.11, a new registrant takes an initial inventory on the date controlled-substance activity begins and then takes a new inventory at least every two years. The record identifies whether the count was taken at opening or close of business and lists each controlled substance by name, dosage form, strength, and quantity. Schedule II records are maintained separately; Schedule III–V records may be separate or readily retrievable.

Federal counting rules require an exact count or measure for Schedule II. For an opened Schedule III–V container, an estimated count is permitted unless the container holds more than 1,000 tablets or capsules, when an exact count is required. A sealed commercial container may be recorded by container count and labeled quantity. An inventory is a physical count, not merely the computer on-hand value.

Mississippi annual inventory

Board Article XXV requires every permitted facility to inventory all controlled substances annually on or about May 1 but no later than May 15. It also permits a facility to use another date so long as the annual inventory is conducted during the same period every year. The rule does not say the facility must first obtain a special Board authorization for that recurring alternative date.

The annual Mississippi inventory still must satisfy the federal content, counting, signing, and retrievability standards. The pharmacist should define the cut-off, prevent transactions from straddling the count without documentation, reconcile unexplained variances, and preserve the signed record.

Event-triggered Mississippi inventories

A complete inventory is taken at a change in ownership, change in pharmacist-in-charge, or permanent closure. A copy remains with the facility’s controlled-substance records and a copy is sent to the Board as Article XXV requires. Closure additionally requires the PIC’s written notice within 14 days describing how and to whom controlled substances were transferred or disposed of, along with the other closure procedures.

If a facility discovers a controlled-substance loss or suspected loss, it immediately reports to the Board and completes a dated and pharmacist-signed inventory of all remaining controlled substances within 48 hours. The Board’s written report is due within 15 days and includes that inventory. This event inventory does not replace federal theft-or-significant-loss notice and Form 106 duties.

Retention and reconciliation

Article XXV says the annual inventory is maintained with the other controlled-substance records. Article XXIII supplies a critical distinction: records of acquisition are retained two years, while records of disposition are retained six years. Do not flatten every record into a universal six-year rule. Federal law may also require at least two years, and a longer applicable disposition or prescription record period must be honored.

A valid reconciliation is:

beginning inventory + acquisitions − documented dispositions = expected ending inventory.

Documented dispositions include dispensing, administration where applicable, authorized transfer, return, and destruction. Compare expected with the physical count. Investigate discrepancies rather than changing the computer balance to force agreement.

Exam method

Identify whether the question asks about the ordinary annual count, a federal biennial baseline, a change event, or a loss. Then apply date, exact-versus-estimated counting, record content, copy submission, signature, and retention. The common wrong answers use Article XXXI instead of Article XXV, require Board approval for the alternative annual date, or claim every controlled-substance record is retained six years.

Reconciliation exercise

A May inventory starts with 800 tablets. During the year, invoices show 2,400 acquired. Prescription and authorized disposition records show 2,950 removed. Expected stock is 250. A physical count of 242 creates an eight-tablet discrepancy. Recount, examine receiving entries, reversals, partial fills, returns, destruction, and access records. If the difference remains a suspected loss, begin the immediate/48-hour/15-day Mississippi sequence and assess federal significance. Never create a fictitious dispensing entry.

At a PIC change, take the event inventory even if the annual inventory occurred last week. One inventory event does not cancel a different trigger.

The signed inventory record should make later audit reconstruction possible. Preserve the count sheets, time-of-day designation, package multipliers, personnel, and documented resolution of variances rather than retaining only a single total by schedule.