- Compounded medications are prepared for a specific patient, based on a prescription.
- Prescribers use them when an FDA-approved product isn't a good fit: the strength, the form, an inactive ingredient, or availability.
- Compounded medications are not FDA-approved. The FDA does not review them for safety, effectiveness, or quality before they are dispensed.
- Quality is guided by USP standards: <795> for non-sterile, <797> for sterile, and <800> for hazardous drugs.
- Federal law recognizes two kinds of compounders: 503A pharmacies and 503B outsourcing facilities.
How compounding differs from manufacturing
Drug manufacturers make large batches of FDA-approved medications in a fixed set of strengths and forms, and the same product goes to millions of people. Compounding works the other way around: a pharmacist prepares a medication in a smaller quantity, to match one prescriber's order for one patient.
Compounding is one of the oldest parts of pharmacy practice. Before mass manufacturing, almost every prescription was prepared by hand. Today it fills the gaps that manufactured products leave.
When a prescriber might choose compounding
Compounding is meant for a real clinical need, not as a stand-in for a manufactured drug that would work just as well. Common reasons include:
- A strength that isn't made commercially, such as a lower dose for a child or an older adult.
- An allergy or sensitivity to an inactive ingredient like a dye, lactose, gluten, or a preservative.
- A different form, such as a liquid for someone who can't swallow pills, or a cream instead of a tablet.
- Combining medications into one preparation to simplify a routine.
- A drug shortage or discontinued product, within the limits federal law allows.
Good to know
Federal law limits compounding copies of drugs that are already commercially available. A compounded version generally has to make a meaningful difference for the patient, which is why the decision belongs to the prescriber.
Common compounded dosage forms
Compounded medications fall into two groups, and each follows its own USP standard.
Non-sterile
Capsules, oral liquids and suspensions, creams, gels and ointments, troches and lozenges, and suppositories.
Non-sterile compoundingSterile
Injections and infusions, eye drops, and other preparations that must be free of microorganisms.
Sterile compoundingWho oversees compounding pharmacies
Several layers of oversight apply:
- State boards of pharmacy license and inspect pharmacies, including compounding pharmacies, and set state rules.
- The FDA sets the federal conditions for compounding under sections 503A and 503B of the Federal Food, Drug, and Cosmetic Act, and can inspect compounders.
- USP (United States Pharmacopeia) publishes the quality standards for compounding. Many states require pharmacies to follow them.
- The DEA regulates any controlled substances involved.
Learn how the two federal pathways differ in 503A vs. 503B.
Are compounded medications safe?
Compounding is an established, legal part of pharmacy care, and it helps many patients. But because compounded medications don't go through FDA approval, their quality depends on how carefully the pharmacy works. Questions worth asking any compounding pharmacy:
- Are you licensed in my state?
- Do you follow USP <795> and <797>?
- Where do your ingredients come from, and do they come with a certificate of analysis?
- Can you trace my medication by lot number?
- Who do I call if something looks wrong?
If you have a side effect or a problem with a medication, tell your prescriber and your pharmacy. You can also report it to the FDA through MedWatch.
Pharmaneek and compounding
Our role
Pharmaneek does not compound medications. This guide explains how compounding pharmacies and FDA-registered outsourcing facilities are regulated. For questions about a specific prescription, contact your prescriber or dispensing pharmacy.
Contact Pharmaneek or browse our patient education resources.
Frequently asked questions
Are compounded medications FDA-approved?
No. Compounded medications are prepared by licensed pharmacies to a prescriber's order. They do not go through the FDA's drug approval process, so the FDA has not reviewed them for safety, effectiveness, or quality.
Do I need a prescription?
Yes. A 503A pharmacy compounds and dispenses medications only against a valid prescription for an individual patient.
Can I ask for a compounded version instead of a brand-name drug?
You can ask your prescriber, but it's their clinical decision. Federal law limits compounding copies of commercially available drugs, so there generally has to be a medical reason the manufactured product doesn't work for you.
Does insurance cover compounded medications?
Coverage varies by plan and by medication, and some plans don't cover compounded preparations. Ask your insurer and dispensing pharmacy about coverage before filling.
Educational content only. It is not medical advice and does not replace advice from your prescriber or pharmacist. Compounded medications are not FDA-approved and require a valid prescription. Last updated October 2026.