The last few years have seen the introduction of a number of high profile Canadian preferred pharmacy network (PPN) arrangements. PPNs offer plan sponsors financial and other benefits when plan members use network pharmacies. However, due diligence is required to ensure your organization does not walk away from a great opportunity or, on the other hand, dive into something that disrupts employees without delivering promised savings. As offerings become more prevalent, it may become necessary to compare several different offerings to determine the best fit for your organization. This article provides a framework for reviewing network offerings through mail order, retail or specialty pharmacies.