Adherence to medications is measured through the
metric called proportion of days covered (PDC), which the
Pharmacy Quality Alliance defines as “the proportion of
days in the measurement period ‘covered’ by prescription
claims for the same medication or another in its therapeutic
class.”3 OutcomesMTM has created a Targeted Intervention
Program (TIP) that provides individualized messages
to pharmacists that address a concern about a particular
patient. Concerns include a suspected gap in therapy, a
prescribed medication that has a potentially less expensive
but equally therapeutic alternative, the lack of an ACE
inhibitor or ARB prescription for a patient with diabetes
and hypertension, a medication adherence “red flag,” an
elderly patient prescribed a high-risk medication, the need
for a medication (eg, the need for a statin in a patient with
diabetes), and potential necessary dose adjustments.