The present disclosure relates to a method to stimulate endogenous BMP-2 up-regulation in a subject which method comprises administering to a subject an effective amount of one or more of the following compounds prazosin, quinacrine, emetine, apomorphine, and debrisoquine, whereby endogenous BMP-2 up-regulation is stimulated in said subject. The endogenous BMP-2 up-regulation may enhance bone formation and/or cartilage formation.
