# Australian regulator warns after counterfeit peptide product tears patient’s oesophagus

https://mins.news/en/item/57086

- The Guardian, 2026-09-14 02:41 UTC
- Health
- Original: https://www.theguardian.com/australia-news/2026/sep/14/counterfeit-retratrutide-warning-peptide-torn-oesophagus-australia-tga

> Australia’s Therapeutic Goods Administration warned about unapproved peptide products after a patient suffered uncontrollable vomiting and tore their oesophagus while believing they were taking experimental weight-loss drug retatrutide. Testing found the counterfeit product contained semaglutide, at about eight times the amount in approved products, and no retatrutide.