Do You Know the Difference Between These Adherence Measures? MPR and PDC are the most common measures of medication adherence based on patient refill records. and often involve more than one acetaminophen-containing product. INDICATIONS AND USAGE Acetaminophen Injection is indicated for Figure 1. x 1/7 x Figure 2. x 2/7 x Related Content: OTC Products Are Accessible When Traditional Health Care Delivery Is Not COVID-19 Precautions Cut Rates of Common Respiratory Illnesses Antihistamines Are Not Always Used Correctly During Spring Allergy Season OTC Products Are Accessible When Traditional Health Care Delivery Is Not OTC Guide COVID-19 permanently changed how pharmacists recommend and sell nonprescription options. Ensuring Access to Medications x 3/7