Topic cluster
Compounded GLP-1s: Bioequivalence, Pharmacy Standards & Safety
Compounded semaglutide and tirzepatide are legal, widely used, and dramatically cheaper than the brand-name pens — but the quality varies pharmacy by pharmacy in ways that aren't visible from the marketing. This cluster collects every research article on the compounded regulatory and quality picture: bioequivalence evidence, FDA warning letters, PCAB accreditation data, and the practical reconstitution and dosing guides.
5 research articles in this cluster · last updated 2026-04-08
Compounded Semaglutide Bioequivalence: What 503A Pharmacies Actually Have to Test
Compounded semaglutide isn't FDA-approved, but that doesn't mean it's untested. A close look at what 503A and 503B pharmacies are actually required to verify, and where the real quality risks live.
FDA Warning Letters to Compounded GLP-1 Telehealth Providers: The Live Investigation
Every FDA warning letter we have identified that targets a compounded GLP-1 telehealth provider, compounding pharmacy, or related weight-loss business — with violation patterns, issuing offices, and what is actually being cited. Live dataset, updated bi-weekly via automated FDA scraper.
PCAB Accreditation: What It Actually Means When a Compounding Pharmacy Has It (and Doesn't)
PCAB (Pharmacy Compounding Accreditation Board) accreditation is the most-cited quality marker in the compounded GLP-1 industry, but very few patients understand what it actually verifies — or that the majority of US 503A compounding pharmacies don't have it. We explain what PCAB accreditation does and doesn't guarantee, what USP 797/795 compliance means in practice, and how to ask a telehealth provider the right questions about their fulfillment pharmacy.
Compounded GLP-1 Reconstitution Guide: Mixing Lyophilized Semaglutide and Tirzepatide Safely
A step-by-step FDA-cited guide to reconstituting lyophilized compounded semaglutide and tirzepatide with bacteriostatic water. Covers concentration math, vial handling, storage after reconstitution, and the common mistakes that ruin a vial or under-dose the patient.
GLP-1 Units to mg Dosage Chart: Semaglutide & Tirzepatide
Compounded semaglutide and tirzepatide are dosed in milligrams but drawn in insulin-syringe units. This is the complete unit-to-mg conversion chart for every common compounded concentration, the formula behind it, and worked answers to the most-searched dosing questions: how many units is 2.5 mg of tirzepatide, how many mg is 40 units of semaglutide, and more.