As biologics or personalized medicines become more and more available, developing any sort of national pharmacare plan and looking at developing a formulary is difficult, in the sense that as time advances, medicines become so personalized that you may have Jane Doe needing a certain medicine for breast cancer that you can't just list on a formulary because it's for Jane Doe. The system has to be flexible enough to incorporate that, or else the formulary, for all intents and purposes, is not very useful.
On May 6th, 2019. See this statement in context.