The Australian Pharmaceutical Benefit Scheme (PBS) offers free medication to pensioners and subsidizes over 211 million prescriptions. The PBS advisory committee assesses and recommends which drugs should be listed. Australia is one of the biggest consumers of medicine due to the high prevalence of chronic diseases. The government contributes a large amount of funds to the healthcare system, and there is private health insurance available. Both prescription and non-prescription forms of medication are common in the Australian healthcare system. Challenges faced by the PBS include preauthorization, price renegotiations, and post-market surveillance.