Barrett’s Research

Feel Confident About Your GLP-1

Starting a GLP-1 — or already on one — can come with a lot of questions and a little anxiety. That's completely normal. We read the FDA notices, sort through the side-effect data, keep tabs on the lawsuits and help you tell a trustworthy provider from a sketchy one, then hand it back to you in plain language. Think of this as the friend who did the homework so you can make a calm, informed choice.

Seed data — verify figures before relying on them.

50+
FDA warning letters to compounders (2025-2026)
40-70%
Notice some stomach side effects
30M+
Americans now on GLP-1 medications
$2B+
Sought in active GLP-1 lawsuits

Where to start

Pick the topic on your mind

Six friendly guides to help you feel steady and safe on your GLP-1 journey. Start wherever your question is.

Warning

A word about compounded GLP-1s

Compounded semaglutide became popular during the shortage, and we understand the appeal — it's often far cheaper. But once the FDA declared the semaglutide shortage over in February 2025, the legal basis for most compounding went away. Plenty of sellers keep going anyway, and we'd rather you knew the real trade-offs before you decide:

  • The FDA has sent warning letters to 50+ compounders over contamination, incorrect dosing and unapproved salt forms — so this isn't a hypothetical worry.
  • Some compounded products turned up with concentrations that were simply wrong, which can mean too much or too little medicine.
  • Compounded medications skip the FDA-approved quality testing that brand-name drugs go through, so there's less of a safety net.
  • A number of people have reported serious reactions tied to compounded products. You deserve to know that before you choose.

The short version

Three habits that keep you safe

If you remember nothing else, remember these. They cover the vast majority of what goes wrong.

01

Check who you're trusting

A good provider uses state-licensed pharmacies and names the actual physicians on staff. If you can't find those details, it's fair to ask — or walk away.

02

Go gently with the dose

GLP-1s are meant to be increased slowly, step by step. If a provider ships you a high dose right out of the gate, treat that as a warning sign rather than a shortcut.

03

Speak up when something's off

If a medication or seller causes you trouble, tell the FDA MedWatch program and your state pharmacy board. It feels small, but your report can spare someone else the same experience.

Coming July 2026

Good news if you're on Medicare

Starting July 2026, Medicare Part D begins covering GLP-1s — which means millions of older adults will finally have a regulated, affordable route to brand-name medications, instead of feeling pushed toward riskier compounded options. We'll walk you through what to expect.

See the Medicare guide

By Rihab Yassin, Ph.D., Health Technology Researcher & Publisher. Published April 4, 2026.

Barrett's Research shares educational information only — it isn't medical advice. Please talk with a qualified healthcare provider before starting any medication.

2-minute match quiz

Still unsure about a provider?

Run the quick provider check, or take our 2-minute match quiz to find a GLP-1 program we'd feel good recommending to a friend.