This study examines how a Texas-like closed drug formulary might affect the prevalence and costs of drugs in 23 other state workers’ compensation systems that do not currently have a drug formulary.  

A Texas-like closed formulary limits access to some drugs by requiring prior-authorization for drugs not included in the formulary. The study provides readers with multiple scenarios to illustrate the impact of the formulary based on how physicians respond.  

The 23 states included in this study are Arkansas, California, Connecticut, Florida, Georgia, Illinois, Indiana, Iowa, Kansas, Louisiana, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Jersey, New York, North Carolina, Pennsylvania, South Carolina, Tennessee, Virginia, and Wisconsin.

Impact of a Texas-Like Formulary in Other States. Vennela Thumula, and Te-Chun Liu. June 2014. WC-14-31.

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