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  • Q&A with Australian Health Practitioners

    What is Botulinum Toxin?

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  • A/Prof Karl Ng

    Neurologist (Brain Specialist)

    A/Prof Karl Ng is a conjoint associate professor at the Northern Precinct of Sydney Medical School at the University of Sydney. He completed his medical … View Profile

    Botulinum toxin refers to a commonly used group of injectable medications in both neurology and cosmetic medicine. These treatments have been available for more than 30 years and are used to manage a wide range of conditions. Several products are approved for medical use, with the most common being Botox® (OnabotulinumtoxinA), Dysport® (AbobotulinumtoxinA), and Xeomin® (IncobotulinumtoxinA).

    Botulinum toxins are derived and purified from the Clostridium botulinum bacterium, which is grown under controlled laboratory conditions. When used correctly, these bacterial toxins are safe and not harmful. They act on nerve endings, blocking the signals that would normally stimulate overactive target organs such as muscles, sweat glands, and salivary glands. This temporarily prevents the affected muscles from contracting (tensing up).

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