What are 'therapeutic goods'?

In relation to the evaluation, assessment and monitoring done by the TGA, therapeutic goods are broadly defined as products for use in humans in connection with:

• preventing, diagnosing, curing or alleviating a disease, ailment, defect or injury
• influencing inhibiting or modifying a physiological process
• testing the susceptibility of persons to a disease or ailment
• influencing, controlling or preventing conception
• testing for pregnancy
• 
  

This includes things that are:

• used as an ingredient or component in the manufacture of therapeutic goods
• used to replace or modify of parts of the anatomy

A more precise definition of 'therapeutic goods' can be found in Section 3 of the Therapeutic Goods Act 1989.