Barrett’s Research
2026 tracker

FDA Alerts, Made Readable

FDA notices can be dense and a little alarming to read on your own. So we keep a running feed of every warning letter, recall, investigation and label change touching GLP-1 medications and the pharmacies that sell them — and we spell out, in plain language, what each one means for you. Newest entries are up top.

By Rihab Yassin, Ph.D., Health Technology Researcher & Publisher. Published January 15, 2026.

2026, at a glance

The big picture so far

50+
Warning letters
5
Active investigations
3
Label updates
1
Shortage resolved

Seed data — verify before relying on it.

The full feed

Every alert, with what it means for you

Each card includes a plain-English note on what to actually do. Most of these won't apply to you — but it's good to know what's out there.

HIGHApril 2026Compounded Semaglutide

FDA Issues Warning Letters to 12 Additional GLP-1 Compounders

The agency sent warning letters to a dozen compounding pharmacies still marketing semaglutide without proper authorization now that the shortage has ended.

What this means for you

If you're getting compounded semaglutide, it's worth a quick call to confirm your pharmacy is still legally allowed to dispense it. A reputable one won't mind the question.

CRITICALApril 2026Compounded Semaglutide / Tirzepatide

Contamination Reports From Compounding Pharmacies Under Investigation

The FDA is investigating bacterial contamination in injectable GLP-1 products tied to five or more pharmacies; two patients were hospitalized with sepsis.

What this means for you

Please trust your eyes here: if a compounded injectable looks cloudy, has floating particles, or has changed color, don't use it. Set it aside and reach out to your prescriber.

INFOFebruary 2026Semaglutide (all doses)

Semaglutide Shortage Officially Declared Over by FDA

The shortage that began in 2022 is fully resolved across all doses, and the temporary compounding exemption has ended.

What this means for you

Here's the practical takeaway: compounded semaglutide is now legal only from a 503B outsourcing facility with active FDA registration. If you're on a compounded version, ask your provider where it's made.

HIGHFebruary 2026Semaglutide, Tirzepatide

FDA Expands Investigation Into Vision Loss (NAION) Risk

Building on a 2024 Harvard study, the FDA widened its probe; insurance data suggests a two- to fourfold higher NAION risk in GLP-1 users.

What this means for you

If you ever notice sudden vision changes — blurriness, a blind spot, or loss of vision in one eye — call your doctor right away. It's rare, but it's the kind of thing you want checked promptly.

MODERATEJanuary 2026All GLP-1 receptor agonists

Updated Pancreatitis Warning Added to GLP-1 Labels

Stronger pancreatitis labeling is now required; data shows roughly 1 in 500 patients experience acute pancreatitis, with risk elevated in the first three months.

What this means for you

If you get severe pain in your upper belly — especially the kind that radiates to your back — stop the medication and get emergency care. Don't wait it out.

HIGHJanuary 2026Compounded Semaglutide

Cumulative Warning Letters Now Exceed 50 Compounders

More than 50 letters have been issued for unapproved salt forms, inadequate sterility testing, false marketing, and unlicensed operation.

What this means for you

It only takes a minute to look up your compounding pharmacy on the FDA website and see whether it's been flagged. A clean record is a good sign you're in safe hands.

HIGHDecember 2025Compounded Semaglutide Sodium

Semaglutide Sodium Salt Form Flagged as Unapproved Drug

The FDA clarified that semaglutide sodium is a different chemical entity from the base form — unapproved and unevaluated for safety.

What this means for you

A simple question for your provider: is your compounded semaglutide the base form or the sodium salt? You deserve a clear answer, and the base form is what you want.

MODERATENovember 2025All GLP-1 receptor agonists

Thyroid C-Cell Tumor Warning Remains Under Review

The boxed warning stays in place while a 10-year epidemiological study on long-term thyroid C-cell tumor risk continues.

What this means for you

If you or a close family member has a history of medullary thyroid cancer, GLP-1s aren't right for you — be sure your provider knows this before you start.

MODERATEOctober 2025Semaglutide, Tirzepatide, Liraglutide

Gastroparesis Reports Prompt FDA Review of GI Effects

Adverse reports of severe gastroparesis are growing, with some patients describing persistent symptoms months after stopping treatment.

What this means for you

If your stomach symptoms are severe or just won't let up, tell your doctor — and consider reporting them to FDA MedWatch. Your report genuinely helps protect the next person.

HIGHSeptember 2025Various compounded GLP-1 products

FDA Cracks Down on Social Media GLP-1 Sales

The FDA and FTC jointly targeted 30+ social accounts and websites selling GLP-1 without licenses, often using fake endorsements and AI-generated testimonials.

What this means for you

Please skip the social media ads and marketplace shops entirely — no matter how good the price looks. A licensed provider is always worth the extra cost here.

Your safety checklist

A few easy habits that keep you protected

None of this is complicated. Do these and you'll have sidestepped almost everything in the feed above.

  1. 1When you can, stick with FDA-approved brand-name medications — Ozempic, Wegovy, Mounjaro or Zepbound. They go through the strictest quality checks.
  2. 2If you're using a compounded version, ask your pharmacy to confirm its license and 503B outsourcing-facility registration. A trustworthy one will share this happily.
  3. 3If something goes wrong, report it to FDA MedWatch (fda.gov/medwatch). It's quick, and it helps protect other people too.
  4. 4Schedule regular eye exams while you're on a GLP-1 — especially if you have diabetes or vascular risk factors.
  5. 5Learn the warning signs of pancreatitis and gastroparesis: severe belly pain, lingering nausea, vomiting, and feeling full after just a few bites. Knowing them means you can act fast.

Straight from the source

Official FDA resources

If you'd like to check something yourself, these are the same pages we rely on.

The simplest way to stay safe

Honestly, most of this comes down to one habit: buy only from licensed providers, and take a minute to check them before you commit. We've made both easy.

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