Compounding needs a reason
What does made to order mean?
A preparation made for a patient can have a purpose. Ask what that purpose is, and which rules apply.
What compounding means
Compounding means a pharmacy or doctor prepares medicine for a patient’s needs in place of a finished drug-company product.
The US drug agency, FDA (Food and Drug Administration), says a pharmacy-made medicine may be appropriate for a medical need an approved product cannot meet. It may also be appropriate when an approved product cannot be bought. This was checked in September 2026.
Ask the prescriber to explain the specific need in your case.
Ask which kind of facility is involved
One route is a pharmacy making medicine for a named patient who has a prescription. The law calls this 503A. The pharmacy must also meet the other preparation rules, including the limits on copies below. This federal rule was checked in September 2026.
The other route is a facility registered with the FDA to make batches of sterile medicine. The law calls this 503B. This was checked in September 2026.
Sterile means free of living germs. Those labels come from sections of the law.
A 503B facility can make a batch before it has prescriptions naming individual patients. It must follow the federal quality rules used by drug factories. These rules were checked in September 2026.
Making a batch is different from supplying your medicine. You still need a prescription from a licensed health professional to receive a prescription medicine. This federal rule was checked in September 2026.
Ask which setup is proposed and why it fits the plan.
A lower price does not settle the rules
A pharmacy cannot routinely make a copy of an approved medicine that can already be bought. Under the 503A rule, a changed version may be allowed if your prescriber decides the change makes a significant medical difference for you. For example, removing an ingredient you are allergic to can meet a patient need. A price reduction by itself cannot satisfy this rule. The separate 503B route also restricts copies of approved drugs. These federal rules were checked in September 2026.
Semaglutide and tirzepatide are medicines used for diabetes or weight care. When their approved injections were on the FDA’s national shortage list, that shortage allowed pharmacy-made copies under the shortage rules. They were no longer on that list when checked in September 2026. A pharmacy cannot now use that earlier shortage as its reason for making a copy.
A medicine missing from your local pharmacy’s stock is not necessarily listed as a national shortage by the FDA. This policy was checked in September 2026.
Get the reason in plain words
- Why can an approved product not meet my need?
- What has changed in this preparation?
- Which pharmacy or facility makes it?
- Why is the pharmacy allowed to make this version for me?
If the answer is a technical label, ask for the explanation behind it.