The Therapeutic Interchange Program (TIP) has developed a process allowing physicians and other prescribers to endorse the Washington State Preferred Drug List (PDL), and requires pharmacists to automatically substitute the preferred drug for non preferred drugs prescribed by these practitioners unless the prescription is for a refill of an antipsychotic, antidepressant, chemotherapy, antiretroviral, or immunosuppressive […]

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This section contains the department’s rules for the endorsing practitioner therapeutic interchange program (TIP). TIP is established under RCW. The statutes require state-operated prescription drug programs to allow physicians and other prescribers to endorse a Washington preferred drug list (PDL) and, in most cases, requires pharmacists to automatically substitute a preferred, equivalent drug from the […]

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This section contains the department’s rules for the endorsing practitioner therapeutic interchange program (TIP). TIP is established under RCW. The statutes require state-operated prescription drug programs to allow physicians and other prescribers to endorse a Washington preferred drug list (PDL) and, in most cases, requires pharmacists to automatically substitute a preferred, equivalent drug from the […]

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