Great Definitions
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“Patient Adherence” defined
Adherence is not simply blind compliance. Adherence is an active and voluntary choice by the patient.” — Dr. Melissa Hunt, Associate Director, Clinical Training, University of Pennsylvania
“Prior Authorization” defined
a cost-containment procedure that requires a prescriber to obtain permission to prescibe a medication prior to prescribing it [my emphasis] — MedicineNet.com
“Therapeutic Substitution” defined
“Therapeutic substitution” means switching a patient from the drug originally prescribed by his or her physician to “an entirely different chemical entity,” which is considered “a giant step beyond generic substitution” where the patient is switched from the prescribed drug to its generic equivalent. [Therapeutic Substitution — Usurpation of the Physician’s Prerogative. John C. Ballin. JAMA. 1987. 257(4):528-529]