| Meridian Illinois Medicaid Clinical | Rilonacept (Arcalyst) | 2025-05-01 |
| Meridian Illinois Medicaid Clinical | RimabotulinumtoxinB (Myobloc) | 2025-05-01 |
| Meridian Illinois Medicaid Clinical | Risdiplam (Evrysdi) | 2025-05-01 |
| Meridian Illinois Medicaid Clinical | Sacituzumab Govitecan-hziy (Trodelvy) | 2025-05-01 |
| Meridian Illinois Medicaid Clinical | Sebelipase Alfa (Kanuma) | 2025-05-01 |
| Meridian Illinois Medicaid Clinical | Selpercatinib (Retevmo) | 2025-05-01 |
| Meridian Illinois Medicaid Clinical | Sipuleucel-T (Provenge) | 2025-05-01 |
| Meridian Illinois Medicaid Clinical | Solriamfetol (Sunosi) | 2025-05-01 |
| Meridian Illinois Medicaid Clinical | Sonidegib (Odomzo) | 2025-05-01 |
| Meridian Illinois Medicaid Clinical | Sorafenib (Nexavar) | 2025-05-01 |