Conclusion
Based on personal experience and published findings of other researchers, TI is an effective cost-containment measure. With the changing healthcare environment, more congressional and public involvement in the US, and introduction of very expensive biotechnology drugs, the emphasis of TI may shift from cost containment to cost effectiveness. More work is needed in this area.
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Achusim, L.E. Therapeutic Interchange as a Cost-Containment Measure. PharmacoEconomics 2, 347–351 (1992). https://doi.org/10.2165/00019053-199202050-00001
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DOI: https://doi.org/10.2165/00019053-199202050-00001