Health Officials Warn of Risks from Unapproved Peptides

Published 2026-10-20

Health authorities in New South Wales have issued an urgent warning following a sharp increase in the number of people seeking medical help after using unapproved peptides. These substances, which are often marketed online for performance enhancement or weight loss, are causing unexpected and dangerous side effects in users across the state.

Peptides are short chains of amino acids that act as building blocks for proteins. While some peptides are used in legitimate medical treatments, many of the products currently being sold on the internet are not approved by the Therapeutic Goods Administration (TGA). Because these products are unregulated, their safety, quality, and exact ingredients remain unknown to the consumer.

Medical experts, including the Royal Australian College of General Practitioners (RACGP), are concerned about the growing trend of people self-prescribing these substances. Patients are arriving at emergency departments and GP clinics with adverse reactions, highlighting the risks of consuming products that have not been tested for human safety.

Health officials are now urging the public to avoid purchasing or using any peptides that have not been prescribed by a registered medical professional. They emphasize that any health goals, such as muscle growth or weight management, should be discussed with a doctor to ensure that any treatment is safe, legal, and effective.

If you have used an unapproved substance and are feeling unwell, doctors advise that you seek medical attention immediately. Being honest with healthcare providers about what you have taken is essential for receiving the correct treatment and ensuring your long-term health.

Sources: Royal Australian College of General Practitioners (RACGP)

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