{"schemaVersion":"peptidescanner-evidence-object/v1","objectId":"story:fda-gram-peptides-warning-letter:v1","objectPathId":"fda-gram-peptides-warning-letter-v1","kind":"story-version","urls":{"story":"https://peptidescanner.com/stories/fda-gram-peptides-warning-letter/","json":"https://peptidescanner.com/evidence/v1/objects/fda-gram-peptides-warning-letter-v1.json","markdown":"https://peptidescanner.com/evidence/v1/objects/fda-gram-peptides-warning-letter-v1.md"},"story":{"slug":"fda-gram-peptides-warning-letter","version":1,"domain":"Regulatory","dateInSource":"2026-03-31","sourceCheckedAt":"2026-07-29","publishedAt":"2026-07-29","peptideSlugs":["retatrutide","tirzepatide"],"peptides":[{"slug":"retatrutide","url":"https://peptidescanner.com/peptides/retatrutide/"},{"slug":"tirzepatide","url":"https://peptidescanner.com/peptides/tirzepatide/"}]},"claims":[{"id":"headline","text":"FDA warning letter names retatrutide and tirzepatide products","sourceIds":["fda-gram-peptides-warning-letter-2026"]},{"id":"summary","text":"FDA issued a warning letter to Gram Peptides that describes the agency's findings about products marketed with retatrutide and tirzepatide.","sourceIds":["fda-gram-peptides-warning-letter-2026"]},{"id":"paragraph-1","text":"The cited FDA warning letter identifies products marketed with retatrutide and tirzepatide and records the agency's stated regulatory findings concerning the recipient.","sourceIds":["fda-gram-peptides-warning-letter-2026"]},{"id":"paragraph-2","text":"A warning letter records FDA's position and requested response at the time it was issued. This update does not generalize those findings to unrelated products or report a later resolution.","sourceIds":["fda-gram-peptides-warning-letter-2026"]}],"sources":[{"id":"fda-gram-peptides-warning-letter-2026","name":"U.S. Food and Drug Administration","sourceClass":"A","title":"FDA warning letter to Gram Peptides","url":"https://www.fda.gov/inspections-compliance-enforcement-and-criminal-investigations/warning-letters/gram-peptides-721806-03312026"}],"correction":{"state":"none"},"boundaries":{"scope":"selected-public-evidence-only","reporting":"PeptideScanner reports the cited regulator or label record. It does not extend that record into broader safety, effectiveness, or approval claims.","unknowns":["Sources outside the selected public PeptideScanner bundle may exist and are not represented by this object.","This object does not determine whether cited records agree, corroborate one another, or establish scientific truth.","This object does not determine safety, efficacy, causality, or suitability for any person."],"methodologyUrl":"https://peptidescanner.com/methodology/","medicalDisclaimerUrl":"https://peptidescanner.com/medical-disclaimer/"},"commitments":{"publicationLedgerSha256":"e7363e12408977f52d949eedcf7f94c52c05aac427fa34b1970e8af98cf56983"},"integrity":{"algorithm":"sha256","contentSha256":"f65f40c95e5f08deebc2a456f0d77a442f4667bf34c67355978c5f3cfeb473b2"}}