Here is what we can and cannot confirm. ProRx operates as a 503B compounding pharmacy out of Exton, PA. Its authority to operate rests on a state board of pharmacy license and nothing further. Our records carry 3 documented regulatory action(s), listed further down this page.

Where is ProRx located?

ProRx works out of Exton, PA, and holds licenses to ship into 0 US states.

What does ProRx produce?

Alongside its other compounded preparations, ProRx makes compounded semaglutide and compounded tirzepatide. Being a 503B pharmacy, it may run sterile batches to FDA cGMP standards without waiting on a named patient.

What separates a 503A pharmacy from a 503B?

Two things separate them: who inspects, and how much may be made at once. A 503B outsourcing facility registers with the FDA itself, works to current Good Manufacturing Practices (cGMP), submits to FDA inspection, and may make compounded medication in batches with no named patient attached. A 503A pharmacy cannot do that. It fills a prescription written for one patient, answers mainly to its state board of pharmacy, and works to the USP standard for sterile compounding. Neither route produces an FDA-approved drug.

Compounding Pharmacy · Exton, PA · 503B

ProRx Review

Two FDA warning letters have landed on ProRx, an Exton, Pennsylvania outsourcing facility that is FDA-registered as a 503B: one in March 2025, one in April 2026. Voluntary recalls of compounded GLP-1 products have run past 50,000 vials, all for lack of sterility assurance. During the GLP-1 shortage it compounded sterile injections of semaglutide and tirzepatide at scale.

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503BFDA Registered 503B

Location: Exton, PA

Website: prorxpharma.com

States licensed: 0

4.5

★★☆☆☆2.3/5

Our own score · methodology

GLP-1 Partners We Score Highest

None of these fill through ProRx. They are the compounded GLP-1 partners at the top of our own scoring, here in case you would rather start with a service we have taken through signup ourselves.

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No insurance needed · HSA/FSA eligible · vetted by our editors

7.9

Oak

Semaglutide at $119/month, 37% under the register median

Starting price: $119/mo

Get started →Read review Oak →

6.5

Direct Meds

Compounded semaglutide at $249/month

Starting price: $249/mo

Get started →Read review Direct Meds →

8.8

Found

Tirzepatide at $169/month, 37% under the register median

Starting price: $99/mo

Get started →Read review Found →

7.7

Breeze Meds

Knowing which pharmacy fills the vial — it names Belmar Pharmacy

Starting price: $199/mo

Get started →Read review Breeze Meds →

Provider	Starting price	Best for
7.9Oak	$119/mo	Semaglutide at $119/month, 37% under the register median	Get started →
6.5Direct Meds	$249/mo	Compounded semaglutide at $249/month	Get started →
8.8Found	$99/mo	Tirzepatide at $169/month, 37% under the register median	Get started →
7.7Breeze Meds	$199/mo	Knowing which pharmacy fills the vial — it names Belmar Pharmacy	Get started →

Read review Oak →Read review Direct Meds →Read review Found →Read review Breeze Meds →

Accreditations and Standards

Sterile compounding in this country runs on one rulebook, General Chapter <797> of the United States Pharmacopeia^[4]. Depending on what is being made, the finished preparation is then tested for sterility under USP <71>^[5] and for bacterial endotoxins under USP <85>^[6]. Every pharmacy on this page owes those standards already. What follows is what this one has added on top.

FDA Registered 503B

The facility appears on the FDA's own register as a 503B outsourcing facility. That listing brings it inside the FDA's inspection remit and holds it to cGMP.

What It Compounds

Whether any pharmacy may compound semaglutide or tirzepatide at all turns on where the reference product sits on the FDA Drug Shortage List. When a drug comes off that list the door closes, and it has closed before^[7].

Semaglutide

Compounds semaglutide

Tirzepatide

Compounds tirzepatide

States Licensed

ProRx publishes no state-by-state licensure list, so we cannot tell you whether it is licensed where you live. Put that question to your own state board of pharmacy before you fill anything here.

What Regulators Have on File

2025-03-04

FDA Warning Letter (MARCS-CMS 696742) issued to ProRx, LLC citing cGMP violations, sterility deficiencies, non-registered ingredient sources, and inadequate labeling on compounded drugs including Semaglutide 5mg/2ml and Tirzepatide 60mg/3ml.

2025-10-15

Voluntary recall of nearly 40,000 vials of compounded tirzepatide and semaglutide injection due to lack of sterility assurance, on top of a prior recall of over 15,000 vials for the same reason.

2026-04-07

FDA Warning Letter (MARCS-CMS 723704) issued to ProRx LLC for producing tirzepatide that was ineligible for compounding (not in shortage since 2024, never on the 503B bulks list), plus unsanitary sterile production conditions, labeling, and adverse-event-reporting violations.

How GLP Watchdog Scored This Pharmacy

Accreditation held6/10

Standing with regulators5/10

States licensed0/10

GLP-1 compounding10/10

Years operating5/10

We research every score ourselves. The methodology page sets out how each part is weighted.

High confidence · Last verified 2026-06-04 via manual · How we check provider data

Frequently Asked Questions

Glossary

The words sellers use, defined. Tap any term.

Semaglutide · Drugs and brands
Tirzepatide · Drugs and brands
Compounded GLP-1 · Pharmacy and drug forms
503A pharmacy · Pharmacy and drug forms
503B outsourcing facility · Pharmacy and drug forms
PCAB accreditation · Pharmacy and drug forms
Off-label use · Insurance and regulatory
FDA Drug Shortage List · Insurance and regulatory

Where to fill semaglutide Back to the register

Sources & methodology — as of August 2026

1.FDA — Compounding and the 503A Pharmacy Framework— U.S. Food & Drug Administration.
2.FDA — 503B Outsourcing Facility Registration and Requirements— U.S. Food & Drug Administration.
3.PCAB — Pharmacy Compounding Accreditation Board Standards— Accreditation Commission for Health Care (ACHC) / PCAB.
4.USP General Chapter <797> — Pharmaceutical Compounding: Sterile Preparations— United States Pharmacopeia.
5.USP General Chapter <71> — Sterility Tests— United States Pharmacopeia.
6.USP General Chapter <85> — Bacterial Endotoxins Test— United States Pharmacopeia.
7.FDA — Drug Shortages Database (current shortage listings)— U.S. Food & Drug Administration.