7.12.1.4 Meaning of "mixture or compound of substances"

Date Published

The definition of a “pharmaceutical substance” provided in schedule 1 refers to:

"a substance (including a mixture or compound of substances) for therapeutic use …”.

Other than the passing remarks made by Burchett J that the expression “a mixture or compound of substances” was unusual in a scientific context (Virbac (Australia) Pty Limited and Ancare Distributors Limited v Merck Patent GmbH [1994] FCA 1255), this phrase has not been the subject of judicial consideration.

A pharmaceutical substance was defined as the pharmaceutical active ingredient in Otsuka Pharmaceutical Co Ltd v Sun Pharma ANZ Pty Ltd [2025] FCAFC 161. Consequently, a mixture or compound of substances would be a mixture or compound of pharmaceutical active ingredients. The term does not include formulations or compositions of pharmaceutical active ingredients with excipients and/or carriers.

Where the claim is directed to a mixture or compound of substances, the same must also be found in the relevant ARTG goods.

Amended Reasons

Amended Reason Date Amended

Updating content in view of Otsuka decision ([2025] FCAFC 161)

Adding note banner about the page being under review.

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