Figure 5From: Utilization and spending trends for antiretroviral medications in the U.S. Medicaid program from 1991 to 2005Payment for PI Antiretrovirals by Quarter inMedicaid: 1991–2005. Note: Other PIs include Agenerase®, Aptivus®, Crixivan®, and Invirase/Fortovase®.Back to article page