The German reference pricing system defines a reimbursement threshold for groups of pharmaceuticals. Pharmaceuticals are grouped according to certain criteria by the Federal Joint Committee. To make different active ingredients comparable, so called reference values are defined. Subsequently, the federal association of sickness funds sets reference prices using a regression procedure. However, the impact of the reference price system is limited. On the one hand there is a strong incentive for pharmaceutical companies to decrease prices to the reference price. On the other hand there is no incentive for further price reductions. Additionally, only one part of the pharmaceutical market is affected by reference pricing. Therefore the instrument has only managed to lower pharmaceutical expenditure in the short run. For sustainable long-term cost containment the use of other regulatory instruments is necessary. Nevertheless, compared to other instruments of price-regulation, reference pricing seems to be a good alternative to control pharmaceutical prices, since rationing is kept as little as possible.