You are here Home Guidance and resources Resources Making an appeal Supplying substitute medicines when registered medicines are unavailable or in short supply Last updated 23 March 2023 Listen Print Share LinkedIn (Twitter) Facebook Email Loading... The TGA internal review guidelines apply to the following 'initial decisions' made regarding an application or approval to import and supply medicines under section 19A of the Therapeutic Goods Act:approval, including conditions of approvalrefusal to approvelapsing. Previous Lapsing of approvals Next Further assistance