Are GLP-1s peptides?
Most are. GLP-1 receptor agonists like semaglutide are peptides that copy a gut hormone that helps regulate blood sugar and appetite. Tirzepatide, also a peptide, acts on both GIP and GLP-1 receptors. The exception is orforglipron (Foundayo), a small-molecule pill that is not a peptide. Each has a label with approved uses, doses and warnings.
The practical differences
| GLP-1 medicines | Other peptides | |
|---|---|---|
| What it is | A specific drug class | A broad label for many molecules |
| FDA status | FDA-approved brand drugs; compounded versions are not approved | Mostly not FDA-approved |
| Human evidence | Large clinical trials for approved uses | Often limited or early |
| Insurance | Sometimes covered for approved uses, often with prior authorization | Rarely covered |
What to know about compounded GLP-1s
FDA says compounded drugs don't undergo its review for safety, effectiveness and quality, and should only be used when a patient's needs can't be met by an FDA-approved drug. FDA has received reports of dosing errors with compounded injectable semaglutide, and warns against calling compounded drugs generic or the same as an approved drug.
Through Gabriel, a licensed clinician reviews every GLP-1 request and decides. With a free account, compounded semaglutide is $89 to $116 a month and compounded tirzepatide $135 to $225 a month, depending on the dose; semaglutide is from $87 with Core or $84 with Plus. Brand-name drugs go through the manufacturer's self-pay pharmacy.
Compounded medications aren't FDA-approved. A licensed clinician decides what's right for you.
Other peptides marketed for weight loss
Some peptides are sold for fat loss without FDA approval. AOD-9604, for example, is listed on FDA's page of bulk substances that may present significant safety risks in compounding, in its table of nominations that were withdrawn, with FDA's safety notes, such as possible immune reactions and serious adverse events whose cause is unclear. A withdrawn nomination is not FDA approval or a finding of safety. Gabriel does not recommend using peptides without a licensed clinician's supervision, and Gabriel never gives peptide dosing.
Common questions
Are GLP-1s peptides?
Most are. Semaglutide and tirzepatide are peptide-based drugs; orforglipron (Foundayo) is a small-molecule pill. GLP-1s are one specific drug class, much narrower than the peptide category.
Are peptides and GLP-1s the same thing?
No. GLP-1s are a defined drug class with approved uses. Peptides include many unrelated products with different evidence and FDA status.
Which is better for weight loss, peptides or GLP-1s?
FDA-approved GLP-1 medicines have large trials behind their approved uses. Other peptides marketed for weight loss have far less evidence. A licensed clinician decides what fits you.
Does insurance cover GLP-1s?
Some plans cover FDA-approved GLP-1 medicines for approved uses, often with prior authorization. See does insurance cover peptides.
How much does a GLP-1 cost through Gabriel?
With a free account, compounded semaglutide is $89 to $116 a month and compounded tirzepatide $135 to $225 a month, depending on the dose. Compounded medications aren't FDA-approved. A licensed clinician decides what's right for you.
Sources
- FDA's concerns with unapproved GLP-1 drugs used for weight loss U.S. Food and Drug Administration
- What telehealth companies should know when promoting compounded drugs U.S. Food and Drug Administration
- Compounding and the FDA: questions and answers U.S. Food and Drug Administration
- Semaglutide injection MedlinePlus, U.S. National Library of Medicine
- Certain bulk drug substances for use in compounding that may present significant safety risks U.S. Food and Drug Administration
- Foundayo (orforglipron), Lilly's new oral GLP-1 pill for weight loss, now available in the U.S. Eli Lilly and Company, via PR Newswire
This guide is general information, not medical advice. It does not replace a visit with a licensed clinician. Gabriel membership is not health insurance.