503A vs 503B pharmacy: 7 questions to ask your hormone clinic
You can be confident in your hormone clinic's compounding pharmacy when the clinic will name the pharmacy, tell you whether it is a 503A compounding pharmacy or a 503B outsourcing facility, and show that it is licensed in your state, follows recognized compounding standards, tests its batches, reports problems, ships carefully and has a recall plan. Compounded hormones are not FDA approved, which means FDA does not review their safety, effectiveness or quality before they reach you, as the agency explains in its guide to the risks of compounded drugs. The seven questions below turn that into a checklist you can use with any clinic, including ours.
Compounding is not a red flag on its own. It lets a physician order a dose, strength or form that a mass produced product does not offer, which is why many telehealth clinics across the United States offer compounded hormone therapy and compounded bioidentical hormone protocols. If you want the basics first, read our explainer on compound vs traditional pharmacies. This post covers the next step: verifying the pharmacy behind your prescription.
503A vs 503B: what the two pharmacy types mean for you
Federal law sorts compounders into two groups, named for sections of the Federal Food, Drug, and Cosmetic Act.
A 503A pharmacy is a traditional compounding pharmacy. It prepares medication for an individual patient based on a prescription, and its routine oversight comes mainly from the state board of pharmacy. A 503B outsourcing facility registers with FDA, can produce larger batches, must meet current good manufacturing practice (CGMP) requirements, and is inspected by FDA on a risk based schedule. FDA publishes warning letters, recalls and other actions involving both types on its compounding oversight and compliance page.
| 503A compounding pharmacy | 503B outsourcing facility | |
|---|---|---|
| Who it compounds for | Individual patients, based on a prescription | Larger batches, often supplied to clinics and hospitals |
| Main day to day regulator | State board of pharmacy | FDA, plus state requirements |
| Manufacturing standard | Pharmacy compounding standards | Current good manufacturing practice (CGMP) |
| FDA inspection | Not routine; FDA can inspect when problems arise | Inspected by FDA on a risk based schedule |
| Adverse event reporting to FDA | Expectations run mainly through state rules | Required to report adverse events to FDA |
| Are its products FDA approved? | No | No |
Neither type is automatically the safer choice for you. A 503B facility carries more federal oversight, while a 503A pharmacy is the common route when a hormone protocol is built for one person. What matters is that your clinic knows which one it uses and can back up the answers below. One more point: a facility's FDA registration is not FDA approval of the drugs it makes.
The 7 question checklist at a glance
| # | Ask your clinic | A good answer | Red flag |
|---|---|---|---|
| 1 | Which pharmacy fills my prescription, and is it 503A or 503B? | A named pharmacy and a clear category | "Our pharmacy partner" with no name |
| 2 | Is it licensed in my state? | Yes, with a nonresident license you can look up | Unsure, or licensed only in its home state |
| 3 | Which compounding standards does it follow? | The relevant USP chapters, plus how compliance is checked | Vague claims like "pharmaceutical grade" |
| 4 | Can I see certificates of analysis? | Batch specific potency results, plus sterility testing for injectables | Refusal, or one generic document for every lot |
| 5 | How are adverse events reported? | Clinic documents it, tells the pharmacy, and reports to FDA MedWatch when appropriate | "Just stop taking it" |
| 6 | How is my medication shipped? | Tracked, protected packaging, temperature control when needed, a replacement policy | No plan for delays or heat |
| 7 | What happens if a batch is recalled? | You are contacted by lot number with clear next steps | No way to trace which lot you received |
Questions 1 and 2: which pharmacy, and is it licensed where you live?
1. What is the pharmacy's name, and is it 503A or 503B? A clinic that works with a reputable pharmacy has no reason to keep it anonymous. Once you have the name, you can check it yourself. If it is an outsourcing facility, FDA publishes a list of registered outsourcing facilities. If it is a 503A pharmacy, the board of pharmacy in the state where it operates is your first stop.
2. Is the pharmacy licensed in my state? With telehealth, your pharmacy is often in a different state from you. Many states require an out of state pharmacy to hold a nonresident pharmacy license before it can ship medication to residents. Most state boards of pharmacy offer a free online license lookup. Search the pharmacy's legal name and confirm the license is active and shows no disciplinary action. While you are there, confirm that your prescribing clinician is licensed in your state as well.
Questions 3 and 4: quality standards and proof of testing
3. Which compounding standards does it follow? The United States Pharmacopeia (USP) publishes the compounding standards pharmacies widely work from. Chapter 795 addresses nonsterile preparations such as creams, troches and capsules, and chapter 797 addresses sterile preparations such as injectables. Ask whether the pharmacy compounds to the chapters that apply to your medication, and how it knows it meets them: internal audits, state inspections, or outside accreditation. A specific answer beats a slogan.
4. Can I see certificates of analysis? A certificate of analysis (COA) is a lab report for a specific batch. For hormones, the key result is potency: whether the batch contains the amount of hormone the label says. For anything injected, ask about sterility and endotoxin testing too. FDA cautions that poor compounding practices can lead to contaminated drugs or drugs with too much or too little active ingredient, and its compliance actions page shows real cases. Good signs: the COA matches your lot number, names the testing lab, and comes from an independent lab or a clearly described internal program. One generic COA handed to every patient tells you very little.
Question 5: how are side effects and adverse events reported?
Ask your clinic what happens if you have a reaction. A solid answer has three parts: the clinic documents it, notifies the pharmacy with your lot number, and reports it to FDA when appropriate. FDA has said that better adverse event reporting for compounded drugs helps it spot problems and protect patients, and outsourcing facilities are required to report adverse events to the agency. For 503A pharmacies, reporting expectations run mainly through state rules, so your clinic's own process matters even more.
You do not need to wait for anyone else. Patients can file a report directly through FDA's MedWatch program. If you notice something new after starting a compounded hormone, such as redness, swelling or warmth at an injection site, fever, or anything that feels wrong, contact your clinician promptly, and seek emergency care for severe symptoms.
Questions 6 and 7: shipping and recalls
6. How is my medication shipped? Telehealth only works if the medication arrives in the condition it left the pharmacy. Ask how packages are tracked, whether temperature sensitive items ship with insulation and cold packs, what happens if a package sits in heat or arrives late, and whether the pharmacy replaces a compromised shipment. Storage needs vary by preparation, so your package should come with clear instructions on how to store what is inside.
7. What happens if a batch is recalled? Recalls happen in compounding, and FDA lists them alongside warning letters on its compliance actions page. Ask how the pharmacy traces each lot to the patients who received it, how you would be notified, whether you would get a replacement, and who covers the cost. Keep the label from each vial or tube until you finish it, because the lot number is how you match your medication to a recall notice. If a recall affects you, call your clinician right away for instructions rather than guessing.
How BioCure handles compounded hormone prescriptions
BioCure Health is a physician-led telehealth longevity clinic based in the Fort Lauderdale area, licensed to treat patients in 47 states, with availability in your state confirmed at intake. You can do any appointment by video or in person at our South Florida clinic. Every hormone protocol starts with a physician video consultation ($199, credited back with a membership) and lab work, either at home with an in home phlebotomist visit or at a lab, with results in 7 to 14 days. Your physician then walks you through the results one on one before anything is prescribed.
Prescriptions are filled through licensed compounding pharmacy partners and shipped to your door, typically 5 to 10 business days after your consultation and testing, with ongoing follow up included. For men, our testosterone program runs in three tiers: bioOptimize for foundational support, bioRestore for medications that raise your own testosterone production, and bioTest for full replacement with ongoing hormone monitoring. We also offer hormone optimization for women, including progesterone and estradiol options. You are welcome to ask us every question on this checklist about the pharmacy filling your prescription. A clinic that is confident in its pharmacy should be glad to answer.
BioCure does not bill insurance directly, but many patients pay with HSA or FSA funds, and we provide invoices and documentation for reimbursement. You can learn more about the practice on our home page.
Frequently asked questions
Is a 503B pharmacy safer than a 503A pharmacy for hormones?
Not automatically. A 503B outsourcing facility follows CGMP requirements and is inspected by FDA on a risk based schedule, while a 503A pharmacy compounds for individual patients under state board oversight. Either can be a sound choice if it is properly licensed, tests its batches and shares the results.
Are compounded bioidentical hormones FDA approved?
No. FDA explains that compounded drugs, including compounded hormones, are not FDA approved, so the agency does not review their safety, effectiveness or quality before they are sold. That is why checking the pharmacy's licensing, standards and testing matters.
How can I check if a compounding pharmacy is licensed in my state?
Ask your clinic for the pharmacy's legal name, then search it on your state board of pharmacy's online license lookup. Many states require out of state pharmacies to hold a nonresident license to ship to residents. Confirm the license is active and shows no disciplinary action.
What should a certificate of analysis for compounded hormones show?
It should match your lot number, name the lab that did the testing, and report potency, meaning how much hormone the batch actually contains compared with the label. For injectables, ask for sterility and endotoxin results as well. A single generic document used for every lot is not very useful.
Does BioCure use a compounding pharmacy for hormone therapy?
Yes. BioCure fills prescriptions through licensed compounding pharmacy partners and ships medications to your door, typically 5 to 10 business days after your consultation and testing. You can ask us about the pharmacy that fills your prescription at any point.
How do I report a bad reaction to a compounded medication?
Tell your prescribing clinician first so they can document it and notify the pharmacy with your lot number. You can also report it yourself through FDA's MedWatch program. Seek emergency care for severe symptoms.
Longevity is not accidental, it is intentional, and that includes knowing exactly where your medication comes from. Seven questions, asked once, tell you whether your clinic and its pharmacy deserve your trust.
Let BioCure Health lead you in the right direction. Call or text us to schedule an introductory call at 754-206-0838. Your future self will thank you.