**8. Conclusion**

It is notified that CPs can market their knowledge and skills via a wide range of extended service. Nevertheless, CPs must determine the origins of barriers toward such extended services and perceptions of the services in the eyes of customers and GPs. Consequently, CPs have to initiate a strategy formula to eliminate such barriers and perceptions. It is noted that STARZ-DRP is an applicable model to help out CPs to commerce an earlier extended service via the role as a 'gate-keeper'. Additionally, STARZ-DRP might have potential to show the way the exact mode of action prior to other extended services in advanced. The rationale of the article is the fact that it might have potential to help out CPs to incorporate the concept of PC into their on-going practice. Moreover, the model as noted in advance is able to integrate CPs with GPs and work side-by-side for the sake of the customers. Subsequently, the model might have potential to magnify the image of CPs as a supreme medication protector in the healthcare system.
