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Actor Dies After Self-Administering Experimental Peptide
31 Oct
Summary
- Richard Norton died on March 30, 2025, from cardiac arrest after peptide therapy.
- The actor took amounts of medication exceeding prescribed doses.
- Norton appeared in over 70 films and choreographed major stunts.

The cause of death for Australian martial artist and actor Richard Norton has been revealed as cardiac arrest following self-administration of experimental peptide therapy. Norton passed away at his home on March 30, 2025, at the age of 75.
A coroner's report indicated that Norton had been taking amounts of the peptide therapy in excess of the dose prescribed by his medical practitioner. This therapy, increasingly used in sports for healing and muscle growth, is largely experimental and not approved by regulatory authorities.
Norton had expressed interest in the treatment two weeks prior to his death, citing issues like fatigue and pain. While approved for off-label use under clinical supervision, he later informed his nurse he was administering double the prescribed dose.
His wife reported he felt hot and flushed before collapsing after his second dose that day. Medics were called, but Norton died shortly after arriving at the hospital, with clinicians noting anaphylaxis following the injection.
Throughout his career, Norton starred in over 70 films and contributed his stunt expertise to major productions like Mad Max: Fury Road and Suicide Squad.