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Spillover effects of restrictive drug formularies in the statin class: a descriptive study of the Medicaid preferred drug list in Texas.(PHARMACY practice)
- Article from:
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Managed Care Interface
- Article date:
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November 1, 2006
- Author:
- Wang, Y. Richard
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Copyright informationCOPYRIGHT 2006 Medicom International, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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This study examines whether the implementation of Texas' Medicaid preferred drug list (PDL) influenced, or had a spillover effect, on the prescribing of statin products for non-Medicaid patients. Simvastatin and pravastatin were on the PDL, but atorvastatin was not. Physicians in Texas were categorized into four groups with increasing Medicaid exposure. Compared with physicians with very low, low, or medium Medicaid exposure, the non-Medicaid marketshare of atorvastatin dropped approximately two percentage points and the non-Medicaid marketshare of simvastatin and pravastatin increased by approximately one percentage point among physicians with high Medicaid exposure after six ...
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