Australian actor and martial artist Richard Norton died from complications triggered by his injection of unapproved peptides, coroner David Ryan found in findings delivered on Wednesday. Norton, 75, suffered a cardiac arrest and died at Melbourne’s Alfred Hospital on March 30, 2025, in what is believed to be the first confirmed fatality in Australia from unapproved peptide use.
Coroner Blames Unapproved Peptide Injection for Death
Coroner David Ryan determined that Norton’s death resulted from complications arising from his use of the unapproved peptide products CJC1295 and Ipamorelin. The 75-year-old experienced martial artist, actor, stuntman, and instructor had approached medical practitioner Jerzy Muchnicki after becoming interested in peptide therapy. Norton informed Dr Muchnicki that a different healthcare provider had previously given him peptide prescriptions to manage issues involving fatigue, slower physical recovery, shoulder discomfort, and a decline in lean muscle mass.
Dr Muchnicki arranged blood tests to confirm baseline health parameters, and Norton signed an informed consent form outlining the treatment, benefits and risks. Norton also signed an “Informed Consent Form for Peptide Therapy” before receiving the prescription for CJC1295 and Ipamorelin in injection form, which were compounded by a licensed compounding pharmacy in Queensland. However, the coroner noted that Norton “had been taking amounts of the medication in excess of the dose prescribed by his medical practitioner.”
Did You Know? Action star Chuck Norris paid tribute to his friend Richard Norton in an Instagram post following the actor’s passing.
Medical Board investigates doctor after patient collapses
In the days leading up to his death, Norton reported feeling good and stated that the peptide therapy was improving his symptoms. Prior to suffering his collapse, Norton admitted to a nurse at Dr Muchnicki’s clinic that he had been taking twice the amount of CJC1295 and Ipamorelin that had been ordered. The nurse advised Norton to use only the prescribed dose starting the following week, but he became unresponsive later that day after injecting another dose.
Following a notification raising concerns about Dr Muchnicki’s treatment, the Medical Board of Australia investigated the case. Clinical Professor Alistair Vickery stated in a report that there was insufficient evidence that CJC1295 and Ipamorelin are safe, effective, or beneficial for human use. While Professor Vickery found that the clinical care provided met the standard reasonably expected given the written consent and prior use, he criticized the doctor’s notes as sparse, inadequate, and perfunctory. Dr Muchnicki acknowledged the criticisms, accepted accountability, and apologized for his errors in judgment and record-keeping lapses.
Regulator Response and Calls for Tougher Restrictions
In response to the tragedy, Coroner Ryan recommended that the Therapeutic Goods Administration review the therapeutic benefits and safety risks of peptides such as CJC1295 and Ipamorelin to consider whether further restrictions ought to be imposed. The medicines regulator stated that various pathways exist enabling medical practitioners to access unapproved peptides.
Coroner recommends TGA consider tougher restrictions on #peptide use after death of Australian actor Richard Norton. https://t.co/guX2dYqaAz via @ABCaustralia
The Therapeutic Goods Administration continues to warn consumers about the risks of unapproved peptides that have not been assessed for safety, quality, or effectiveness. The regulator also highlighted a separate case where a patient suffered a torn oesophagus after using an unapproved weight-loss peptide labelled as retatrutide, noting that it is continuing to assess risks and consider whether further regulatory measures are appropriate.
Frequently Asked Questions
What specific peptides were linked to Richard Norton’s death?
Coroner David Ryan found that Richard Norton’s death resulted from complications caused by his use of unapproved peptide products CJC1295 and Ipamorelin. These substances were prescribed by a doctor and compounded by a licensed pharmacy in Queensland.
What dosage of the medication was Norton taking?
According to the coroner’s findings, Norton had consumed quantities of the drug that went beyond what his physician had officially prescribed. Hours before his death, Norton disclosed to a clinic nurse that he had been administering double the prescribed dose.
What regulatory actions were taken regarding the prescribing doctor?
The Medical Board of Australia investigated Dr Jerzy Muchnicki’s treatment and found his practice was or may be unsatisfactory, though regulatory action beyond a caution and imposed conditions was not warranted. Dr Muchnicki acknowledged criticisms regarding sparse record-keeping, accepted accountability, and engaged an educator to improve his practice.
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