Last updated on October 26, 2025
No, advertising prescription-only medicinal weight-loss drugs directly to consumers on social media is prohibited under Australian therapeutic goods law.
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You’re browsing your feed when a sleek post pops up: “Drop kilos fast with this prescription miracle!” It’s tempting, it’s trendy—and it’s illegal. In Australia, advertising prescription-only medicines, including those for weight loss, directly to the public is strictly prohibited. That includes social media, influencer endorsements, and any other consumer-facing digital content.
Legal Boundaries and Public Safety
Australia’s advertising rules for therapeutic goods are governed by the Therapeutic Goods Act 1989 and the Therapeutic Goods Advertising Code Instrument 2021. These laws are designed to protect public health by ensuring that medicines are promoted responsibly and only to appropriate audiences. Prescription medicines fall under the category of “restricted representations,” which means they cannot be advertised to the general public under any circumstances.
This restriction applies across all media platforms, including social media, influencer content, and digital marketing. The goal is to prevent self-diagnosis, misuse, and pressure on healthcare providers. Instead, decisions about prescription medicines must be made in consultation with qualified health professionals.
Weight Loss Products: What’s Allowed?
The Therapeutic Goods Administration (TGA) has issued specific guidance on advertising weight management products. While some complementary medicines may be advertised with approved claims, prescription-only weight-loss drugs—such as those containing GLP-1 receptor agonists—are strictly off-limits for public promotion. Even indirect references, such as testimonials or before-and-after photos, can be considered unlawful if they imply therapeutic use.
The TGA has warned that advertising these medicines undermines the role of health professionals and may create inappropriate demand. In recent enforcement actions, the agency issued over 70 infringement notices totaling more than $1 million, including $300,000 related to weight-loss medicines.
Social Media and Influencer Risks
The rise of influencer culture and targeted advertising has made enforcement more complex. A post that casually mentions a prescription drug—even without naming it—can still breach the law if it implies therapeutic use. The TGA’s guidance makes it clear: media platforms and individuals are responsible for ensuring their content does not promote prescription medicines to the public.
Businesses must understand their legal obligations before launching any campaign. The penalties for non-compliance are steep, and ignorance is no excuse. If in doubt, advertisers should consult the TGA’s advertising compliance resources or seek formal approval for restricted representations.
See more on Australia
Sources
Requirements for weight management claims in advertising
https://www.tga.gov.au/how-we-regulate/advertising/specialised-advertising-issues-and-topics/requirements-weight-management-claims-advertising
11 March 2025
TGA warns advertising prescription-only weight-loss medicine is prohibited
https://www.tga.gov.au/news/media-releases/tga-warns-advertising-prescription-only-weight-loss-medicine-prohibited
1 August 2024