Ask why a medicine would be made to order

• What need of mine would the prepared medicine address?
• Why would a ready-made approved product not meet that need?
• Who will prepare it, and how will I get written information?

A pharmacist, doctor or registered medicine-making site can prepare a medicine this way.

It can help meet a need such as avoiding a dye or providing another form when swallowing a tablet is difficult.

For September 26, 2026, the key limit is that a compounded drug has no FDA approval or advance FDA check of its quality, safety and effectiveness.

503A is the section of federal law used by ordinary compounding pharmacies. Under the rules checked September 26, 2026, they prepare medicine on a valid prescription naming the patient. That prescription is one requirement; the pharmacy must meet the section’s other rules too.

Sterile means free from living germs.

503B is another section of federal law. A site registered with FDA under it is called an outsourcing facility: it makes batches of sterile medicines. As of September 26, 2026, that maker can prepare a batch without prescriptions naming individual patients.

This describes the maker’s batch preparation. It does not allow a patient to obtain prescription medicine without a valid prescription.

On September 26, 2026, the rules gave FDA the main checking role for registered 503B sites. They must meet federal quality rules for drug factories. For ordinary 503A pharmacies, day-to-day checks mainly fall to the state pharmacy board. They still follow pharmacy quality standards for making medicines; the federal factory rules do not apply to them.

• If this resembles an approved medicine, what change does the person prescribing it say matters for me?

The rules checked September 26, 2026 restrict routine compounding of essentially the same drug as a commercially available product.

A 503A pharmacy can make a change for a named patient that the prescriber judges to make an important difference for that patient’s care. That preparation can then fall outside the copy restriction. A price saving alone does not meet this test. Ask which change is planned for your medicine and what need it meets. For example, ask whether leaving out a dye you are allergic to is the important change in your case.