As part of a package of 2015 Pharmaceutical Benefits Scheme (PBS) changes, the number of dates on which the price of PBS listed medicines can change will increase from three times per year to six times per year: 1 February, 1 April, 1 June, 1 August, 1 October and 1 December.
For more details, go to: http://www.pbs.gov.au/news/2015/06/move-to-six-pbs-price-change-points/fact-sheet-price-change-points-06-2015.pdf