# A fake weight-loss peptide put someone in hospital

> An Australian patient vomited so hard on a counterfeit peptide that their oesophagus tore, and the vial held something else entirely.
- Title: A fake weight-loss peptide put someone in hospital | Shortify
- Summary: An Australian patient vomited so hard on a counterfeit peptide that their oesophagus tore, and the vial held something else entirely. An unmarked vial bought…
- Keywords: weight loss drugs, peptides, tga, drug safety, australia, news, world, fake, weight-loss, peptide, put, someone
- Source: the Guardian — https://theguardian.com/australia-news/2026/sep/14/counterfeit-retratrutide-warning-peptide-torn-oesophagus-australia-tga
- Published: 2026-09-14T02:41:49+00:00
- Read time: 1 min
- Topics: weight loss drugs, peptides, tga, drug safety, australia, news, world
## A torn oesophagus
Someone in Australia took what they thought was retatrutide and vomited so severely they tore their oesophagus. It can be fatal. They ended up in hospital.
## The drug isn't even legal
Retatrutide is experimental. No regulator in Australia or overseas has approved it, so it cannot be legally prescribed or sold there.
## Sold as Reta, R-10, R-20
Despite being unapproved, it is pushed hard on social media and the hidden market under several names, usually shipping in unmarked vials.
## The vial held something else
The TGA tested the product and found no retatrutide at all. It contained semaglutide, at roughly eight times the level in approved semaglutide products.
## Nobody knows what's inside
The TGA's chief medical adviser said the real danger is total uncertainty: what substance, how much, whether it's sterile, what contaminants came along.

> The biggest risks with unapproved peptide products are not knowing what is in the vial
## This isn't the first case
Victoria's health department flagged six cases of acute liver toxicity from products labelled retatrutide in June. Australia's chief medical officer has warned about peptides before.
## Key takeaway

An unmarked vial bought online can hold a different drug at a different dose than the label promises, and the damage lands before anyone finds out what was in it.