Made-to-order medicine
Compounding is real care with a different rulebook
In compounding, a pharmacist or a doctor prepares a custom medicine for one particular patient. It can meet a real need, but it is not the same as an approved medicine from a drug company.
Guide, not a care service
Guide note
The basic split
Federal law allows two kinds of place to make medicine to order. Their names, 503A and 503B, are simply the section numbers of that law. Ask the prescriber or pharmacy which kind made your medicine.
As of September 2026, a 503A pharmacy is a regular licensed pharmacy; it prepares a medicine only for a specific person whose prescription it holds.
Source: FDA compounding overviewThe 503B outsourcing facility, as of September 2026, is a bigger kind of operation; it produces sterile medicine, injections among them, in batches that often go to hospitals and clinics. It can make them without a prescription in your name.
Source: FDA compounding overviewGuide note
What the FDA has not done
As of September 2026, the FDA does not approve compounded medicines or check each one for quality, effectiveness, or safety before it is offered.
Source: FDA compounded-drug guideAs of September 2026, a 503B facility is held to the manufacturing quality rules that drug makers follow, and FDA inspectors visit it. A 503A pharmacy does not have to follow those factory rules.
Source: FDA compounding overviewGuide note
Indiana adds an ingredient rule
Ask for the pharmacy name. Ask whether an ordinary pharmacy (503A) or a larger batch maker (503B) made it. Ask why a made-to-order product is in the plan.
Since July 2026, Indiana has banned making medicine to order from raw ingredients meant for laboratories (research grade) or for animals (veterinary grade). The one exception is an approved research study. The raw ingredient must come from a maker registered with the FDA.
Source: Indiana ingredient law