If you have been considering a GLP-1 medication, you have probably hit a wall of confusing terms. Compounded. Tirzepatide. Semaglutide. 503A. 503B. Salt forms. Shortage list. None of it makes sense unless somebody explains it the way a friend would, not the way a press release does.
This guide does that. Plain English, no medical-school assumptions, no scare tactics. Just what these words mean, why they matter to you, and how to tell a legitimate provider from one you should walk away from
WHAT 'COMPOUNDED' ACTUALLY MEANS
A compounded medication is a prescription drug made by a licensed pharmacy for a specific patient. Instead of being mass-produced and packaged by a big pharmaceutical brand, it is mixed and filled by a pharmacist in response to a prescription from your provider.
Compounding has been around for as long as pharmacies have. Originally it was the only kind of pharmacy. A doctor wrote a prescription, the pharmacist mixed it. Today it is mostly used for patients who need something the brand version cannot deliver. Common examples: a child who needs a liquid version of an adult pill, a patient with a serious allergy to a brand's dye, or a dose size the brand simply does not make.
GLP-1 medications like tirzepatide and semaglutide became a major compounding category between roughly 2023 and early 2025, when the brand versions were on a federal supply shortage. Compounding pharmacies stepped in to fill the gap. Even though the shortages have since ended, compounded versions remain legal under the federal law that allows patient-specific compounding.
TWO KINDS OF COMPOUNDING PHARMACIES
Federal law recognizes two categories of compounding pharmacy. The labels are clunky (503A and 503B), but the difference matters when you are deciding who to trust.
503A pharmacies
These are patient-specific pharmacies. They make one prescription at a time, in response to one specific prescription from a licensed provider. Your name is on the order. They are regulated by state pharmacy boards and follow national sterile-preparation standards (the technical name is USP 797, which is just a rulebook for how sterile injectables get prepared).
Most online telehealth GLP-1 programs, including Fitish RX, work with 503A pharmacies. The pharmacy partners with the provider, your prescription is filled for you specifically, and the medication ships to your door.
503B outsourcing facilities
These are larger pharmacies that make compounded medications in bigger batches. They are inspected directly by the FDA and have to follow the same manufacturing standards that govern traditional pharmaceutical companies (a rulebook called cGMP). 503B facilities sell to hospitals, clinics, and surgery centers more than to individual patients. The FDA publishes a public list of registered 503B facilities.
For deeper background on the regulatory framework, see the FDA overview of compounding laws and policies.
WHAT CHANGED IN 2026
There is one piece of current news worth knowing. On April 30, 2026, the FDA proposed a rule that would prevent 503B outsourcing facilities from making semaglutide, tirzepatide, or liraglutide from bulk ingredients. The comment period closes June 29, 2026. The proposal would not become final right away even if approved.
What the proposal does NOT do: it does not affect 503A patient-specific compounding. Fitish RX operates under the 503A framework, so this rule does not change how our program works.
What this means in plain terms: large-batch compounding of these drugs is under regulatory pressure. Patient-specific compounding is not. If you want to start a GLP-1 protocol now, the 503A path is the more durable one. See the FDA announcement here.
WHY PATIENTS CHOOSE A COMPOUNDED GLP-1
Three reasons come up most often when patients tell us why they picked Fitish RX over a brand-name alternative.
Patient-specific protocols
This is the biggest one in 2026. Compounded medications can be tailored to your protocol, including microdose programs (a gentler version that uses a smaller amount of the medication). Brand-name GLP-1s only come in fixed dose tiers. If you want a softer entry point that is not built around aggressive weight loss, compounded is currently the only path.
Access through a real provider
You complete an online intake, a licensed provider in your state reviews it, and they write your prescription. No clinic visit. No insurance gatekeeping. No waiting for a referral. The whole consult happens at home in about fifteen minutes.
Cost
Without insurance, brand-name GLP-1 medications run roughly $1,000 to $1,800 a month at retail pharmacies. That has shifted recently. Manufacturers now offer direct-pay programs (LillyDirect for Zepbound, NovoCare for Wegovy) that drop cash prices into the $350 to $549 range depending on the dose. So the cost picture is more nuanced than it was a year ago.
Where compounded still wins on price is flexibility. You pay one transparent price for your protocol. No surprise insurance denials, no manufacturer coupons that expire, no shifting tier structures. And the protocol can include dose tiers like microdose that the brand programs do not offer at any price.
COMPOUNDED VERSUS BRAND-NAME, IN PLAIN ENGLISH
Here is the side-by-side most people are trying to figure out.
The active ingredient
Tirzepatide is tirzepatide whether it is in compounded form or in the brand-name version (Zepbound or Mounjaro). Same molecule.
Semaglutide is more complicated, and this is the single most important thing to ask any compounded GLP-1 provider before you commit. The FDA has warned that some compounders sell products using semaglutide SALT forms (semaglutide sodium or semaglutide acetate). The agency considers those different active ingredients than the version in approved Wegovy or Ozempic.
Fitish RX uses semaglutide BASE, which is the same molecular form as Wegovy and Ozempic. Our compounded formulation is labeled Semaglutide/Glycine. The glycine is a stabilizer (an excipient that protects the peptide structure during storage). The active ingredient is the base form. We do not use salt forms.
Reference: the FDA explains the salt-form issue here.
How it is made
Brand-name GLP-1s are mass-produced in pharmaceutical plants and shipped through traditional pharmacy distribution. Compounded GLP-1s are made by a licensed compounding pharmacy in response to your specific prescription, then shipped directly to your home.
How it comes packaged
Brand-name versions ship in single-use pens or auto-injectors. Compounded versions usually ship in multi-dose vials with separate syringes. The vial means more flexibility on protocol. It also means you are measuring your own dose, which is one of the things to look for in a provider (more on this below).
What insurance does
Most insurance plans do not cover compounded GLP-1s. Most do not fully cover the brand-name versions either, unless you have a specific diagnosis. This is shifting, but as of 2026, most patients pay out of pocket regardless of which path they choose.
What dosing flexibility you get
Brand-name protocols follow fixed-step titration. Compounded protocols can be customized: a slower titration if you are sensitive to GI side effects, a microdose tier if you want a gentler version, or a longer maintenance dose if your provider thinks that fits you better.
IS COMPOUNDED TIRZEPATIDE SAFE?
The honest answer: it depends on the operator. The category itself is legal and regulated. The variance is at the provider and pharmacy level. Some operators do this well. Others have cut corners and the FDA has issued warning letters.
Here is what separates safe from sketchy.
Good signs
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A licensed provider conducts the consult and sets the protocol. Not a sales agent. Not a chatbot. A real human with a license number you can look up.
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The pharmacy is registered with its state board (for 503A) or with the FDA (for 503B). The provider can tell you who the pharmacy partner is.
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The pharmacy uses semaglutide BASE, not a salt form. (For tirzepatide, this question does not apply.)
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The medication ships in tamper-evident packaging with clear labels. You can read the strength, the dose schedule, and the expiration date.
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The provider is reachable for follow-up questions and dose adjustments.
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Pricing is transparent and itemized. No surprise fees, no auto-billed accessory products you did not ask for.
Red flags to walk away from
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No licensed provider visible anywhere in the consult flow.
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A sales-driven pitch that pushes a specific dose before evaluating you as a patient.
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The provider will not tell you who the pharmacy partner is, or which form of semaglutide they use.
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Pricing that seems too cheap to be real. (Often a sign of unregulated or counterfeit supply.)
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Pressure to commit to a long-term program before you have even received your first dose.
One safety detail patients should know
The FDA has received more than 455 adverse event reports related to compounded semaglutide and more than 320 for compounded tirzepatide. Many of those involve dosing errors when patients self-administer the wrong amount from a multi-dose vial. The vial format is normal for compounded medications, but it does mean you have to read the syringe carefully. Fitish supplies a custom dosing interactive walkthrough within your patient portal for your specific GLP-1 dosing. Sources: UIC Drug Information Group.
HOW FITISH RX IS SET UP
Fitish RX is an online telehealth program. A licensed provider reviews your intake, sets your protocol, and writes your prescription. The medication is filled by a licensed 503A compounding pharmacy and shipped directly to your home. You can message the provider through the Fitish patient portal any time you have a question.
Two protocol lanes are available.
Full-dose GLP-1 protocol. This is the standard path. A licensed provider sets your starting dose and titration based on your intake. Suited for the patient whose goals align with how GLP-1 medications are typically used.
GLP-1 microdose program. A gentler protocol that uses a meaningfully smaller amount of the medication. Designed for the patient who wants a softer entry, often pairing the medication with mindful eating habits or general wellness goals. More on the microdose program.
The semaglutide formulation we use is labeled Semaglutide/Glycine. As covered above, that means semaglutide base (the same molecular form as Wegovy and Ozempic) compounded with glycine as a peptide stabilizer. No salt forms.
WHAT THE PATIENT JOURNEY ACTUALLY LOOKS LIKE
1. The consult
You complete an online intake covering medical history, current medications, and goals. A licensed provider reviews everything. There is no clinic visit. Most patients finish the intake in about five to ten minutes.
2. The protocol
If you are a fit, the provider writes your prescription and shares the protocol with you. Your starting dose, titration steps, and any specific notes are set here, by a real provider, not by a marketing funnel.
3. The shipment
Your prescription is filled by the compounding pharmacy and shipped to your home. New patient orders include a welcome kit with the supplies and reference materials you need to start safely.
4. Follow-up
You can message your provider through the portal at any point. Patients receive check-in at the four-week mark to complete for provider review which goes through how the protocol is landing and whether anything should adjust on your next refill.
MICRODOSE VERSUS FULL-DOSE, IN CASE YOU ARE WONDERING
Most of the GLP-1 conversation online assumes one goal: aggressive weight loss. That is one valid path. There is also a quieter one.
The microdose program uses smaller amounts of the medication than the standard protocol. It is built for patients who want a gentler tool, often paired with mindful eating habits, support around food noise, or general wellness goals that are not primarily about the scale.
Both protocols use the same active ingredient. The dose, the intent, and the patient profile are what is different. A provider helps you figure out which lane fits.
FAQS
How much does compounded tirzepatide cost?
Pricing varies by provider and program. As a general benchmark, compounded protocols cost less than the standard retail price of brand-name GLP-1 medications, though manufacturer direct-pay programs have narrowed that gap recently. The bigger value with compounded is flexibility: you pay a transparent price and get protocol options (including microdose) that the brand programs do not offer.
MICRODOSING SEMAGLUTIDE - $179
MICRODOSING TIRZEPATIDE - $269
COMPOUNDED SEMAGLUTIDE - $219
COMPOUNDED TIRZEPATIDE - $339
Is compounded tirzepatide FDA-approved? (And how regulated is it, really?)
The active ingredient (tirzepatide) is FDA-approved in its brand-name form. The specific compounded version, like all compounded medications, is not approved as a finished product. But "not FDA-approved" is not the same as "unregulated." Compounded medications operate under a different rulebook, and that rulebook has real teeth.
Here is who is actually watching.
State boards of pharmacy. 503A pharmacies (the kind Fitish RX works with) are licensed and inspected by the state board of pharmacy in every state they operate in. The board sets the rules for facility conditions, sterile technique, pharmacist credentials, recordkeeping, and quality assurance. Pharmacies that fall short of those standards lose their license.
The DEA. Any compounding pharmacy that handles a controlled substance has to register with the federal Drug Enforcement Administration and meet DEA security and recordkeeping requirements.
National sterile-preparation standards (USP). Sterile compounded medications, which includes injectable GLP-1s, have to be prepared in compliance with United States Pharmacopeia chapter 797. It is the same national rulebook that hospital pharmacies follow when they prepare sterile injectables. Nonsterile compounding has its own standard (USP 795).
Voluntary independent accreditation. Two major bodies certify compounding pharmacies above the baseline state requirements: PCAB (the Pharmacy Compounding Accreditation Board, run by the Accreditation Commission for Health Care) and the NABP (the National Association of Boards of Pharmacy). These accreditations require independent inspection and ongoing compliance reviews.
LegitScript certification. This is the third-party certification specifically built for online pharmacies and telehealth platforms. It verifies provider credentials, medication sourcing, advertising claims, transparent pricing, and compliance with state and federal healthcare law. LegitScript is the de facto gatekeeper for advertising on Google, Meta, TikTok, LinkedIn, and Microsoft. If a telehealth GLP-1 program is allowed to run ads on those platforms, they have been independently audited by LegitScript and are subject to ongoing monitoring.
State medical boards. The licensed provider who writes your prescription is regulated by the medical board in your state. They are accountable to that board for the protocol they prescribe and the care they deliver.
Adverse event reporting. Even though compounded medications are not FDA-approved as finished products, adverse events are still reported to the FDA through its MedWatch program. The agency uses that data to issue safety warnings and take enforcement action when something goes wrong.
So "not FDA-approved" is a regulatory category, not a regulatory void. Compounded medications operate under a parallel framework involving the state pharmacy board, the DEA, USP standards, voluntary accreditation programs, third-party certification (LegitScript), and the same provider licensure that applies to any prescription. That is the framework Fitish RX is built on.
Is compounded semaglutide the same as Wegovy?
Same active ingredient (semaglutide base), different production path. Some compounders use salt forms (semaglutide sodium or semaglutide acetate) that the FDA has said are different active ingredients. Ask any provider you are considering which form they use. Fitish RX uses base, not salts.
Where can I get compounded tirzepatide?
Through a licensed telehealth provider partnered with a registered compounding pharmacy, or through certain in-person clinics. The provider writes your protocol and the pharmacy fills it. We built Fitish RX to make this path simple and transparent.
How quickly does it ship?
Once your consult is approved and your prescription is written, most patients receive their first shipment within a few business days. Specific timing depends on your state and the pharmacy partner as well as the date of order.
What about side effects?
GLP-1 medications, brand-name and compounded alike, share a common side effect profile. The most common are gastrointestinal: nausea, constipation, and reflux. They are usually mild to moderate, most pronounced during the early weeks and dose increases, and typically resolve as your body adjusts.
Reported rates from large clinical trials: nausea 17 to 22 percent (tirzepatide) and 18 percent (semaglutide); diarrhea 13 to 16 percent and 12 percent; vomiting 6 to 10 percent and 8 percent. Slower titration consistently produces better tolerability. Talk to your provider about anything that does not resolve on its own. Source: NEJM clinical trial data.
This guide is educational and not medical advice. GLP-1 medications are prescription-only and require physician consultation. Complete your intake for a Fitish provider to review before starting, stopping, or changing any medication. Regulatory rules around compounded GLP-1 medications are evolving; the information here reflects the landscape as of May 2026. For the most current FDA guidance, see FDA.gov/compounding.
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