What compounding is meant to do
A compounded medicine is made to order, taking the place of a drug company’s ready-made product. A pharmacist or doctor may prepare it; a business called an outsourcing facility may also make it.
An outsourcing facility makes sterile medicine in batches and registers with the FDA.
Sterile means free from living germs.
When approved medicines cannot meet a patient’s need, the Food and Drug Administration (FDA) describes a role for compounding.
In the FDA’s example, a dye allergy may mean a patient needs a version of a ready-made medicine with that dye left out.
Ask what the proposed change is and why it matters for your care. Ask for the pharmacy’s full name before agreeing.
Keep a licence and a product review separate
A Massachusetts pharmacy making sterile medicines needs an extra licence and an inspection before renewal, under state law checked September 30, 2026.
The pharmacy’s state licence does not give its made-to-order medicines FDA approval. FDA guidance checked September 26, 2026 keeps those checks separate.
Federal rules checked September 26, 2026 limit a pharmacy’s routine compounding of near-copies of available drugs.
An exception to that limit on copies requires the prescribing clinician to judge that the change matters in an important way for this patient. A lower price alone does not qualify.
Think of the dye example above. Ask what needs changing for you, and why the clinician considers that change important.
Check the pharmacy’s role