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Federal requirements ·

Controlled Inventory, Ordering and Losses

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Introduction

A pharmacy has to be able to show where each controlled-substance tablet, capsule or milliliter came from and where it went. If the records can't do that, the pharmacy can't tell a counting error from theft.

This lesson covers the federal records that create that trail. You will see which record documents ordering, receiving, counting, destroying and losing controlled substances. You will also learn what to do when the shelf count and the records disagree.

By the end of this lesson, you should be able to:

  • Match each controlled-substance record or form to the event it documents.
  • Choose between an exact count and an estimated count during an inventory.
  • Reconcile a count difference correctly, and explain why changing the count to match expectations is not reconciliation.
  • State the two federal deadlines that follow discovery of a theft or significant loss.
  • Recognize that federal rules set a minimum that state law can add to.

Before you start: You need everyday arithmetic and a basic idea of what a controlled substance is. Federal law sorts controlled substances into schedules, Schedule I through Schedule V. Each schedule is a group that gets its own level of control. Schedules I and II have the strictest ordering controls. For how drugs are placed in schedules, see Controlled-substance schedules and valid orders. In this lesson, drugs are described only by schedule. You don't need to know any drug names.

A few terms used throughout:

  • The DEA (Drug Enforcement Administration) is the federal agency that registers pharmacies to handle controlled substances.
  • The registrant is the business that holds the DEA registration, here the pharmacy. Many federal duties are written as duties of the registrant.
  • The CFR (Code of Federal Regulations) is where federal rules are published. A citation like "21 CFR 1304.11" points to one section.

Every controlled unit needs a record of how it entered and left

Think of controlled stock like a bank account. Money comes in (deposits) and goes out (withdrawals). At any moment the balance should equal what came in minus what went out. If it doesn't, someone has to find out why.

Controlled substances work the same way:

  • In: orders that were received.
  • Out: prescriptions dispensed, transfers to other registrants, and destruction.
  • Balance: an actual count of what is on the shelf.

Each kind of record below covers one part of that trail. Ask "what event does this record prove?" and you can usually tell which record you need.

Ordering: the schedule decides the ordering record

Schedule I and II: DEA Form 222 or its electronic equivalent

A DEA Form 222 is the official order form for Schedule I and II controlled substances. The plain-English takeaway: the most tightly controlled drugs need a special, government-issued order form. A regular purchase order is not enough.

Federally, a Form 222 (or the electronic equivalent) is required for each distribution or transfer of a Schedule I or II substance unless an exemption applies. So the form isn't only for buying from a wholesaler. Sending Schedule II stock to another registrant also needs this documentation.

The electronic equivalent is the Controlled Substance Ordering System (CSOS). CSOS lets a pharmacy send Schedule II orders electronically, without a paper Form 222. Electronic ordering is optional, and a pharmacy may still use paper forms.

CSOS orders must be signed with a digital certificate, an electronic signature issued by DEA. Only these people can obtain one:

  • the person who signed the most recent DEA registration or renewal application,
  • a person authorized to sign a registration application, or
  • a person the registrant has granted power of attorney to sign orders. Power of attorney is written authorization to sign order forms on the registrant's behalf.

Notice what decides the answer here. Job title doesn't decide who may sign. Authorization does. A technician who has been granted power of attorney and holds a certificate is in a different position from one who has not. The pharmacy keeps power-of-attorney authorizations as records.

Schedule III, IV and V: the receipt is the record

For Schedules III through V, there is no special order form. The pharmacy keeps the receipt, meaning the invoice or packing slip. On that receipt, it records the date the drugs arrived and confirms that the order is accurate.

The receipt must show:

  • the name of the substance,
  • each finished form (for example, a 10 mg tablet),
  • how many units are in each container (for example, a 100-tablet bottle), and
  • how many units or containers were received, from whom, and when.

Worked example

A delivery arrives with two items: a Schedule II tablet and a Schedule IV tablet.

  • Schedule II item: It was ordered on a Form 222 or through CSOS. That executed order record is the ordering record.
  • Schedule IV item: The invoice is the record. Someone writes the date received on it and confirms that the counts and products match the order.

The schedule decides which record applies, not the size of the shipment.

Changed case. Suppose DEA moves a substance out of Schedule II at the federal level. Federally, it no longer needs a Form 222. But a state may keep listing it as Schedule II until the state takes its own action. That state may still require a Form 222 or electronic equivalent for it. A federal change doesn't automatically change state requirements.

Question 1

A technician is asked to submit a Schedule II order through CSOS. They have completed the pharmacy's training. They did not sign the pharmacy's most recent DEA registration or renewal application, they are not authorized to sign a registration application, and the registrant has never granted them power of attorney. Does completing training qualify them to sign the order?

Show answer and explanation

No. Training doesn't decide who may obtain a CSOS digital certificate. Only three groups can: the person who signed the most recent registration or renewal application, a person authorized to sign a registration application, or a person granted power of attorney to sign orders. This technician didn't sign the most recent registration or renewal application, isn't authorized to sign a registration application, and hasn't been granted power of attorney. They fall into none of the three groups, so training alone is not enough. The rule depends on authorization, not job title. A technician who has been granted power of attorney could obtain a certificate.

Question 2

A Schedule III shipment arrives with a packing slip. What must the pharmacy do with that packing slip?

Show answer and explanation

Keep it as the receiving record. Write the date the drugs were received on it, and confirm the order is accurate. For Schedules III–V, this receipt documents the delivery, so no Form 222 is involved. A common mistake is to think Schedule III–V deliveries need no record because no special form is used. They do need one: the receipt.

Inventory: a dated count of what is actually on hand

An inventory, in the federal sense, is a complete and accurate record of all controlled substances on hand on a specific date. The plain-English takeaway: a dated snapshot of what is really there, made by counting, not by copying what the computer expects.

"On hand" means everything in the pharmacy's possession or control. Each inventory records:

  • the date,
  • whether it was taken at the opening or the close of business,
  • each substance's name,
  • its finished form,
  • the units per container, and
  • the number of containers.

It is kept in written, typed or printed form at the registered location.

When inventories happen

  • Initial inventory: taken on the date the pharmacy first starts dispensing controlled substances. If it has none, it records a zero inventory. That means "we have none" is written down, not left blank.
  • Biennial inventory: a new full inventory at least every two years. "Biennial" means every two years. It can be taken on any date within two years of the previous biennial inventory date.
  • Newly controlled substance: when a drug that wasn't controlled before is added to a schedule, the pharmacy inventories its stock of that drug on the date the rule takes effect. After that, the drug is included in every biennial inventory.

Federal rules don't require the pharmacy to send its inventory to DEA. It keeps the inventory available for inspection.

Exact count or estimate?

For an opened container, the federal rule depends on the schedule:

  • Schedule I or II: always an exact count or measure.
  • Schedule III, IV or V: an estimated count or measure is allowed, unless the container holds more than 1,000 tablets or capsules. Then the count must be exact.

The reason for the difference is risk and scale. Schedule II drugs carry the strictest controls, so every unit is counted. A large Schedule III–V bottle holds enough units that an estimate could hide a meaningful shortage.

Federal law sets the minimum here. A state or the pharmacy's own policy may require exact counts more often.

Keeping and separating the records

Federal rules require inventories and other required records to be kept for at least two years. They must be available for DEA inspection and copying. Schedule I and II inventories and records are kept separate from all other pharmacy records. Schedule III–V records are either kept separate or kept so they are readily retrievable, meaning someone can pull them out of ordinary business records quickly. Executed order forms and inventories stay at the registered location.

Question 3

During a biennial inventory, you find three opened containers. Which ones need an exact count under the federal rule?

  • A Schedule II 100-count bottle, about half full
  • A Schedule IV 100-count bottle, about half full
  • A Schedule III 5,000-count bottle with about 3,800 tablets left
Show answer and explanation

The Schedule II bottle needs an exact count because opened Schedule I and II containers always do. The Schedule III bottle also needs an exact count because it holds more than 1,000 tablets. The Schedule IV 100-count bottle may be estimated under the federal rule.

A common mistake is to judge by schedule alone and estimate every Schedule III–V container. The 1,000-unit limit changes the answer for large containers. Also remember that "may estimate" is the federal minimum. Your state or pharmacy may require exact counts.

Question 4

A new pharmacy receives its DEA registration but has no controlled substances on the day it starts operating. Does it need an initial inventory?

Show answer and explanation

Yes. It records a zero inventory. Writing down that nothing was on hand creates the starting point for the trail. Without it, nobody could later show what the pharmacy started with.

Reconciliation: explain the difference, never erase it

Reconciliation means comparing what the records say should be on hand with what a physical count shows, then finding the documented reason for any difference. The plain-English takeaway: your goal is to explain the gap with evidence, not to make the gap disappear.

Some pharmacies keep a running count of each controlled item between inventories, often called a perpetual inventory. Whether one is required depends on state law and pharmacy policy. This lesson uses one only as a fictional example.

Worked example

These numbers are fictional and include every needed assumption. They come from one Schedule II tablet:

  • Last counted balance: 400 tablets
  • Received since then, documented on CSOS records: 500 tablets
  • Dispensed since then, according to prescription records: 620 tablets

Step 1, find the expected balance. Start + received − dispensed = 400 + 500 − 620 = 280 tablets.

Step 2, count. The physical count is 268 tablets.

Step 3, find the difference. 280 − 268 = 12 tablets short.

Step 4, look for documentation. Check whether a dispensing, transfer or receiving event happened but was left out of the running count. Suppose you find a filled prescription for 12 tablets that was dispensed but never subtracted from the running count. Now the gap has a documented cause. The running count is corrected because of that evidence. The correction can be traced back to the prescription that caused it.

Changed case: no explanation found

Keep everything the same, but this time no record explains the 12 missing tablets. Now the difference is an unexplained loss. It goes to the pharmacist. The pharmacist and registrant must evaluate it, and it may require federal reporting (next section).

The tempting mistake

The tempting move is to write "280" on the count sheet because that's what the math says should be there. That isn't reconciliation. It's a false record. An inventory must be a complete and accurate record of what is actually on hand. If you change the count to match expectations:

  • the inventory becomes inaccurate,
  • the evidence of a possible theft is hidden, and
  • every later count starts from a wrong number.

Correct arithmetic tells you how big the gap is. It doesn't tell you why there's a gap, and it doesn't give you permission to change a count.

Reconciliation Altering the count
Counts what is physically there Writes what "should" be there
Explains the gap using a specific record Makes the gap disappear with no record
Unexplained gaps go to the pharmacist Unexplained gaps are hidden

Question 5

Expected balance: 150 capsules of a Schedule II product. Physical count: 144. A coworker says, "It's probably a miscount at the last fill. Just enter 150 so the numbers match." What should you do?

Show answer and explanation

Record the actual count of 144, then look for a record that explains the 6-capsule difference. If you find documented evidence, such as a dispensing record that was never entered, the running count can be corrected based on that evidence. If you find none, report the unexplained shortage to the pharmacist. Entering 150 with no evidence falsifies the record and hides a possible loss. "Probably a miscount" is a guess, not documentation.

Theft or significant loss: two federal deadlines

When a registrant discovers a theft or significant loss of any controlled substance, federal rules require two separate steps. Both are measured from discovery, not from when the loss actually happened.

  1. Within one business day of discovery: notify the DEA Field Division Office for the area in writing.
  2. Within 45 days after discovery: file a complete and accurate DEA Form 106 through DEA's Diversion Control Division secure online application.

The plain-English takeaway: a quick written alert first, then the full report later. The 45-day window is for the complete Form 106. It doesn't allow delaying the one-business-day notice.

Worked example: calculating the dates

A pharmacy discovers a theft on March 3 (fictional dates).

  • Written notice: within one business day of March 3.
  • Form 106: 45 days after March 3. March has 31 days, so 28 days remain after March 3 (31 − 3 = 28). 45 − 28 = 17, so the deadline is April 17.

Changed case. Suppose the count was done March 3, but the shortage probably began in February. The deadlines don't move. They still run from March 3, the date of discovery.

Deciding whether a loss is "significant"

The rule doesn't set a fixed number. When deciding whether a loss is significant, the registrant should consider several factors, among others:

  • the quantity lost compared with the type of business,
  • which specific controlled substances were lost,
  • whether the loss can be linked to specific individuals' access or to unusual activities,
  • any pattern of losses over time, whether they seem random, and what was done to resolve them,
  • whether the substances are likely targets for diversion (being moved out of legitimate use), and
  • local trends and other signs of diversion risk.

"Among others" means this list is incomplete. A loss that matches none of these factors is not automatically insignificant.

The technician's role is to recognize discrepancies, document the facts, and bring them to the pharmacist promptly. The federal duty to report belongs to the registrant. Judging significance is the pharmacist's and registrant's decision. Don't decide on your own that a shortage is too small to mention.

Form 106 vs Form 41

These two forms are easy to confuse because both deal with stock leaving the pharmacy. Each answers a different question:

  • DEA Form 106 asks: What went missing that should not have? It reports theft or significant loss.
  • DEA Form 41 (Registrant Record of Controlled Substances Destroyed) asks: What was deliberately destroyed?

When a pharmacy sends unwanted controlled substances to a reverse distributor (a DEA-registered business that takes back and destroys drugs), the reverse distributor that destroys them files the Form 41. A Form 41 should not be used to record the transfer itself from the pharmacy to the reverse distributor. For that transfer:

  • Schedule III–V: the pharmacy keeps a distribution record listing the drug name, dosage form, strength, quantity and date transferred.
  • Schedule I–II: the transfer needs a Form 222 or the electronic equivalent, like any other Schedule I–II transfer.

For more on these channels, see Return to stock, expired stock and reverse distribution and Trace pharmacy inventory through authorized return channels.

Question 6

Match each event to its record:

  • (a) Expired Schedule IV tablets are handed to a reverse distributor for destruction.
  • (b) A locked cabinet is broken into and Schedule II stock is missing.
  • (c) The reverse distributor destroys the drugs it received.
Show answer and explanation

(a) The pharmacy's distribution record of the transfer, listing drug name, dosage form, strength, quantity and date. It is not a Form 41. (b) A theft: written notice to the DEA Field Division Office within one business day of discovery, then a Form 106 within 45 days. (c) A Form 41, filed by the reverse distributor that did the destroying.

The usual mistake is to use Form 41 for the handoff. The handoff is a transfer. Destruction happens later, and the destroying registrant documents it.

Question 7

A theft is discovered on October 20. The pharmacist plans to send the first written notice to DEA together with the Form 106 "sometime before December 4." What is wrong with that plan?

Show answer and explanation

One thing is wrong: the plan delays the initial written notice. The written notice to the DEA Field Division Office is due within one business day of October 20. It can't wait to be sent along with the Form 106.

The Form 106 timing, on its own, is fine. October has 31 days, so 11 days remain after October 20 (31 − 20 = 11). 45 − 11 = 34, and November has 30 days, so the 45-day deadline is December 4. Filing the Form 106 sometime before December 4 meets that deadline.

The fix is to keep the two clocks separate: send the written notice within one business day of October 20, and file the Form 106 by December 4. They are two separate obligations with two separate deadlines.

Federal rules are a minimum, not the whole rulebook

Federal DEA regulations state that following them doesn't count as following other federal or state laws. They also don't permit anything state law forbids. The plain-English takeaway: meeting the federal rule is necessary, but it may not be enough.

This affects several points in this lesson:

  • Record retention: federal rules require at least two years. A state may require more.
  • Scheduling: a state may keep a drug in a stricter schedule than federal law does, along with stricter ordering requirements.
  • Counting: the federal rule permits estimates for some opened Schedule III–V containers. A state or pharmacy policy may require exact counts.

This lesson doesn't teach any particular state's requirements. For a state-specific question, check that state's law or ask the pharmacist.

Question 8

A coworker says, "Federal law says two years, so we can shred controlled-substance records on their second anniversary." What's the problem?

Show answer and explanation

Two years is the federal minimum ("at least 2 years"). Federal regulations say that meeting them doesn't mean meeting state law. If the state requires a longer period, shredding at two years would break state law. Check the state requirement and pharmacy policy before destroying any record.

Independent practice

Question 9

Name the record that documents each event:

  • (a) receiving a Schedule V product,
  • (b) ordering a Schedule II product electronically,
  • (c) a full count of all controlled substances taken 23 months after the last one, and
  • (d) written permission for a staff member to sign Schedule II orders.
Show answer and explanation

(a) The invoice or packing slip, with the date received recorded and accuracy confirmed. (b) A CSOS electronic order, which is the electronic equivalent of a Form 222. (c) A biennial inventory, since it falls within two years of the previous one. (d) A power of attorney to sign order forms.

Each record matches the event it proves: receiving, ordering, counting or authorizing.

Question 10

Fictional Schedule II data: last count 220 tablets, received 100 (documented order record), dispensed 190 according to prescription records. The physical count is 120. Find the gap, and describe the next two steps if you find no explanation.

Show answer and explanation

Expected: 220 + 100 − 190 = 130. Count: 120. The gap is 10 tablets short.

First, record the actual count of 120 and look for a dispensing, transfer or receiving record that explains the 10 tablets. If none exists, report the unexplained shortage to the pharmacist. The registrant then decides whether it is a theft or significant loss that triggers the one-business-day written notice and the 45-day Form 106. You never enter 130 to make the numbers match.

Question 11

During a count on June 10, a pharmacy discovers a shortage that video later suggests happened in May. The registrant determines it is a theft. What are the federal deadlines?

Show answer and explanation

Both deadlines are measured from discovery on June 10, not from the May event. Written notice to the DEA Field Division Office is due within one business day of June 10. For the Form 106, June has 30 days, so 20 days remain after June 10 (30 − 10 = 20). 45 − 20 = 25, so the Form 106 is due by July 25. Counting from May would give the wrong answer.

Question 12

DEA moves a substance from Schedule II to Schedule III. A coworker says the pharmacy can stop using Form 222 for it today because the federal change is final. What's missing from that reasoning?

Show answer and explanation

State law. A state may keep the substance in Schedule II until the state acts, and it may still require a Form 222 or the electronic equivalent for it. Following federal rules doesn't mean following state rules. Before changing the ordering process, check the state's current schedule or ask the pharmacist.

What to remember

  • Ordering Schedule I–II: Form 222 or CSOS. Signing requires the right authorization, such as power of attorney, not just a job title.
  • Receiving Schedule III–V: keep the invoice or packing slip, record the date received, and confirm accuracy.
  • Inventory: a dated, complete and accurate count of what is actually on hand. Take an initial inventory (zero if nothing is on hand), a biennial inventory at least every two years, and an inventory on the date a newly scheduled drug becomes controlled.
  • Counting: opened Schedule I–II containers are counted exactly. Opened Schedule III–V containers may be estimated unless they hold more than 1,000 tablets or capsules.
  • Reconciliation: explain gaps with documents. Never change a count to match expectations. Report unexplained gaps to the pharmacist.
  • Theft or significant loss: written notice to the DEA Field Division Office within one business day of discovery, and a Form 106 through DEA's secure online application within 45 days. Both are measured from discovery.
  • Form 106 vs Form 41: Form 106 reports what went missing. Form 41 records what was deliberately destroyed and is filed by the registrant that destroyed it.
  • Federal vs state: federal rules set a minimum. State law can add requirements.

Review: Follow the product and its record

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