Then the government pays the full $8.32 cost of paracetamol under the PBS.Paracetamol is just one of a number of examples of the government paying much more for medicines under the PBS than they cost in a supermarket.Selsun Blue anti-dandruff shampoo, supplied to veterans under the Repatriation Pharmaceutical Benefits Scheme, costs taxpayers $14.14 but can be bought for $6.34 at a supermarket.