Australian actor and martial artist Richard Norton passed away in 2025 due to cardiac arrest linked to unapproved peptide treatments. A coroner has called for the Therapeutic Goods Administration to investigate unapproved peptides following his death. The incident has raised concerns about the safety of unapproved peptides. The death may be the first confirmed fatality linked to unapproved peptides. The coroner's report highlights the need for further investigation into the safety of unapproved peptides.