Compliance · State rules

Office-use compounding in Maine

Barred by a closed statutory definition; the only non-patient-specific limb is veterinary

USPeptideRx EditorialLast reviewed: August 30, 2026

Maine closes this by writing an exhaustive definition rather than a prohibition. Its statute says what compounding IS — four lettered limbs — and three of them run to the pharmacist’s own patient or to research. The fourth is the only non-patient-specific limb, and it is veterinary: non-patient-specific drugs distributed to licensed veterinarians for veterinarian office use in non-food-producing animals. There is no human equivalent. The phrase "office use" appears exactly once in the definition, inside that veterinary limb. Maine also carries a five per cent wholesale exemption that mentions office use in terms, and it is a false friend — it exempts sales of manufactured drugs from a licensing scheme and authorises no compounding.

The governing rule

Maine’s office-use position is set by 32 M.R.S. § 13702-A(4). The text below is quoted verbatim; everything outside a quote block is our summary of it, and the two are kept visually separate on purpose.

32 M.R.S. § 13702-A(4) — the definition, with all four limbs

"Compounding" means the preparation, mixing, assembling, packaging or labeling of a drug or device by a pharmacist: A. For the pharmacist’s patient for dispensing as the result of a practitioner’s prescription drug order; B. For the purpose of, or as an incident to, research, teaching or chemical analysis and not for sale or dispensing; C. In anticipation of prescription drug orders to be received by the pharmacist based on routine, regularly observed prescribing patterns for the pharmacist’s patient; or D. For nonpatient-specific drugs for distribution to licensed veterinarians for veterinarian office use for nonfood-producing animals, as that term is defined in board rule.

What the rule requires in practice

Each item carries a confidence level. Verbatim rule text is high confidence; a reading of how two provisions interact, or a source that could not be re-verified, is not.

The mechanism is a closed definition, not a prohibitionHigh confidence: Nothing in Maine’s pharmacy statute says a pharmacy may not supply human office stock. The definition simply does not describe it. Compounding that is not within one of the four limbs is not compounding as Maine defines the term, which puts human non-patient-specific preparation outside the activity the statute authorises rather than inside a banned category.
Limb D is the only non-patient-specific limb and it is veterinaryHigh confidence: Three limbs run to the pharmacist’s own patient or to research and teaching. The fourth is expressly non-patient-specific and expressly veterinary, and it is further narrowed to non-food-producing animals. Maine therefore does have a non-patient-specific office-use pathway; it is just not one a human prescriber can use.
The five per cent clause is a false friend, and a vendor will quote itHigh confidence: Maine excludes from wholesale distribution the sale of a drug by a retail pharmacy to licensed practitioners for office use, where the annual dollar volume of prescription drugs sold to practitioners stays under five per cent of the pharmacy’s total annual prescription drug sales. It names office use in terms, which is exactly why it gets quoted. It is an exemption from wholesale-distributor licensure, it is measured on the selling pharmacy’s own sales in dollars, and it authorises no compounding at all. The drugs it contemplates are manufactured ones.Maine is the sharpest instance in this file of a state that simultaneously contains a wholesale exemption contemplating office-use sales and a compounding definition that cannot supply them. Both are real; they are about different things.
The definition was rewritten in 2021Medium confidence: Every limb of the current definition carries a 2021 enactment stamp, so the provision as it now reads dates from that year. Whether a human office-use limb existed before the rewrite and was removed is not established here, and it matters: if one was deleted, Maine moves from silent by omission to closed by deletion.
Quantity and labelHigh confidence: No quantity cap and no label legend attach to a human office-use limb, because there is no human office-use limb for them to attach to. The five per cent figure in the wholesale exemption is a licensure threshold, not a compounding cap.

Maine at a glance

Maine office-use compounding summary, reviewed 2026-08-30
Human office use	Outside the statutory definition of compounding
Sterile preparations	No split — the definition draws no sterility line
Quantity cap	None; the 5% figure belongs to a wholesale-licensure exemption
Mandatory label legend	Veterinary limb only
Board reporting	None for human office use
Last change	Definition rewritten in 2021
Governing rule	32 M.R.S. § 13702-A(4)

Receiving 503B office stock in Maine

Maine uses the literal term for the credential, and its board sits inside the Office of Professional and Occupational Regulation, within the Department of Professional and Financial Regulation. So the supply-side answer is closed for a 503A pharmacy while the outsourcing-facility route remains a licensed category.

Everything above this heading answers the supply question: may a state-licensed 503A pharmacy ship non-patient-specific stock? This section answers the other half. Registration with FDA under section 503B is a federal exemption from federal law and preempts no state licensing scheme, so it is never the whole answer on its own — a state credential is the norm rather than the exception, it is not always issued by the board of pharmacy, and in some states the category you would search for does not exist. What Maine asks for is set out below, including where we could not establish it.

What the 503B must hold to ship inMedium confidence: A licence from the Maine Board of Pharmacy, which is administered within the Office of Professional and Occupational Regulation. Maine uses the literal term for the category, so a keyword search of its law finds the right provisions rather than returning nothing.
Does your practice need a permit?Low confidence: Not established in detail for this page. What is established is that the supply-side route from a 503A pharmacy is closed by definition, so the question a Maine practice actually faces is which facility type may supply it rather than what permit it holds.
Administer vs dispenseMedium confidence: The distinction does not rescue a human office-stock order here, because the bar operates on the compounding rather than on what the practice later does. The veterinary limb is written around office use by veterinarians in non-food-producing animals.
Scheduled (controlled) stockLow confidence: Not established in detail for this page. The compounding definition draws no distinction by schedule, so the closed-definition answer above applies to controlled and non-controlled preparations alike.

How to check a facility’s credential before you order is set out in how to place an office-use order.

The federal layer still applies

Federal law is a second, independent constraint — a state prohibition is not the only thing standing in the way. 21 U.S.C. § 353a conditions the federal compounding exemptions on a drug being compounded for an identified individual patient on receipt of a valid prescription order. A state rule cannot create a federal safe harbour, and several state rules say so in their own text. The separate federal pathway for non-patient-specific office stock is the 503B outsourcing facility — the differences are set out in 503A vs 503B.

For how Maine compares with the other states reviewed, see the state-by-state comparison.

What this page does not establish

Whether Maine’s pre-2021 definition contained a human office-use limb that was removed in the rewrite is unchecked. It matters more than it sounds: a deleted limb would make this a deliberate repeal rather than an omission, which is a stronger and more citable finding than the one published here.
The receiving-side detail on this page is thinner than the supply-side answer. The credential and the agency are established; the permit question for a receiving practice and the controlled-substance mechanics are not, and are left blank rather than inferred.
One practical warning if you check Maine citations yourself: the Secretary of State rules index that most older Maine citations point at now dead-ends, and it does so while returning a large page of plausible text. Only the status code tells you the document is not there.
We searched no case law, attorney-general opinions or disciplinary orders for this state, and search engines were unavailable when it was researched. Read nothing into that silence — it means we have not looked, not that nothing is there.

Sources

Primary sources, fetched directly from the issuing body. No secondary summaries.