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Is Mazdutide Legal? FDA, Compounding and WADA Status

Mazdutide's FDA status, compounding rules and anti-doping status, with a dated timeline of every change we track.

Medical review pendingGLP-1 / glucagon dual agonistUpdated
FDA status
Not approved
Investigational in the US (approved in China)
PCAC vote
Not reviewed
not on the Jul 2026 PCAC agenda
WADA
Not listed
2026 Prohibited List
Not legal adviceStatus reflects public FDA and WADA records on the date shown. Rules differ by country and state.

Current status

Investigational in the US (approved in China)

No. Mazdutide is investigational (investigational in the us (approved in china)) and not approved for any use.

Mazdutide: regulatory status by country
CountryStatusSource
United StatesNo approved product foundNo FDA-approved product found: Drugs@FDA (openFDA) search for active ingredient "mazdutide" returned no matches on 2 Oct 2026.api.fda.govchecked 2 Oct 2026

Timeline

  1. FDA warning letters to five research-peptide sellersEnforcement
  2. Seven FDA warning letters to online sellers of GLP-1 productsEnforcement
Every peptide on the FDA tracker

Compounding and research-use sellers

  • Category 2 is the FDA's list of bulk substances it flagged as raising significant safety concerns. Compounding pharmacies are not expected to compound from them while they are on it.
  • The Pharmacy Compounding Advisory Committee (PCAC) advises the FDA on which substances belong on the 503A bulks list that pharmacies may compound from. Its votes are advice; the FDA decides.
  • "Research use only" products are sold outside these rules and are not checked by the FDA for identity, purity or dose.

Sport and drug testing

Not on the WADA Prohibited List

Dual GLP-1/glucagon agonists are not named on the 2026 list. Mazdutide has been approved in China, so the S0 catch-all (drugs with no approval by any health authority) should not apply.

Outside the US

Rules differ by country. What each regulator's own records show, with the date we checked:

Mazdutide: regulatory status by country
CountryStatusSource
United KingdomNo approved product foundNo approved product found in an emc (UK SmPC compendium) search for "mazdutide" on 2 Oct 2026.medicines.org.ukchecked 2 Oct 2026
CanadaNo approved product foundNo product found in a Health Canada Drug Product Database search for ingredient "mazdutide" on 2 Oct 2026.health-products.canada.cachecked 2 Oct 2026
AustraliaNo approved product foundNo approved product found in an ARTG search for "mazdutide" on 2 Oct 2026.tga.gov.auchecked 2 Oct 2026
European UnionNo centrally authorised EU medicine foundEMA medicines list, searched 2 Oct 2026ema.europa.euchecked 2 Oct 2026

What four regulators' records return

The Drugs@FDA lookup for mazdutide returned a not-found error, so no FDA-approved product appears.[2]

The UK emc compendium search for mazdutide returned no results.[3]

Health Canada's database returned zero active-ingredient records for mazdutide.[4]

The Australian ARTG search for mazdutide found no matching results.[5]

FDA enforcement

An FDA warning letter lists mazdutide among products offered for sale in the United States that the agency treats as unapproved new drugs.[9]

A second warning letter lists mazdutide among the products it names; that letter applies the same unapproved-new-drug wording.[10]

Sport

The WADA list's S0 class covers unapproved substances; mazdutide is not named on the list itself, so whether S0 applies depends on approval status.[1]

Common questions

Is mazdutide FDA approved?

No: the Drugs@FDA lookup returned no match.[2]

Is Mazdutide legal to buy?

It is not an approved drug. Online sellers label it "for research use only, not for human use"; the FDA sent warning letters to five such sellers on 24 Aug 2026. Whether a pharmacy may compound it depends on its FDA bulk-substance status. Rules differ by country.

Is Mazdutide banned by WADA?

No. Dual GLP-1/glucagon agonists are not named on the 2026 list. Mazdutide has been approved in China, so the S0 catch-all (drugs with no approval by any health authority) should not apply.

More on Mazdutide

DosageDoses used in published studies, with the source for each.Side effectsWhat labels and studies report, and what is unknown.How to injectSites, syringe types and hygiene, step by step.For diabetesWhat research says about Mazdutide for diabetes.BenefitsClaimed benefits next to what published studies measured.How it worksTarget, mechanism and how long it acts, from the label or studies.

Sources

  1. 1World Anti-Doping Code International Standard Prohibited List 2026World Anti-Doping Agency · 2026wada-ama.orgAccessed 2 Oct 2026
  2. 2United States: No FDA-approved product found: Drugs@FDA (openFDA) search for active ingredient "mazdutide" returned no matches on 2 Oct 2026.U.S. Food and Drug Administration · 2026api.fda.govAccessed 2 Oct 2026
  3. 3United Kingdom: No approved product found in an emc (UK SmPC compendium) search for "mazdutide" on 2 Oct 2026.Electronic Medicines Compendium (UK) · 2026medicines.org.ukAccessed 2 Oct 2026
  4. 4Canada: No product found in a Health Canada Drug Product Database search for ingredient "mazdutide" on 2 Oct 2026.Health Canada · 2026health-products.canada.caAccessed 2 Oct 2026
  5. 5Australia: No approved product found in an ARTG search for "mazdutide" on 2 Oct 2026.Therapeutic Goods Administration (Australia) · 2026tga.gov.auAccessed 2 Oct 2026
  6. 6EMA medicines export (centrally authorised medicines) (searched 2 Oct 2026)European Medicines Agency · 2026ema.europa.euAccessed 2 Oct 2026
  7. 7FDA warning letters to five research-peptide sellersFDA warning letter (NuScience Peptides; 1 of 5) · 2026fda.govAccessed 2 Oct 2026
  8. 8Seven FDA warning letters to online sellers of GLP-1 productsFDA warning letter (Gram Peptides; 1 of 7) · 2026fda.govAccessed 2 Oct 2026
  9. 9Official web pageOfficial web page · web page
  10. 10Official web pageOfficial web page · web page

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