- Ri-Gel II
- Ri-Mag
- Ri-Mag Plus
- Ri-Mox
- Ri-Mox Plus
- Riabni
- RiaSTAP
- Ribasphere
- Ribasphere RibaPak
- RibaTab
- Ribavirin
- Ribociclib
- riboflavin (vit B2)
- Ribostamycin
- Rid-A-Pain
- Ridactate
- Ridafed
- Ridaforolimus
- Ridaura
- Ridenol
- Ridifed
- Ridiprin
- Rifabutin
- Rifadin
- Rifadin IV
- Rifamate
- Rifampicin
- Rifampicin And Isoniazid
- Rifampicin, Pyrazinamide And Isoniazid
- Rifampicin, Pyrazinamide, Ethambutol And Isoniazid
- Rifamycin
- Rifapentine
- Rifater
- Rifaximin
- RightStep
- Riginic
- Rilexine
- Rilmenidine
- Rilonacept
- Rilpivirine
- Rilutek
- Riluzole
- RimabotulinumtoxinB
- Rimactane
- Rimantadine
- Rimazolium
- Rimegepant
- Rimexolone
- Rimiterol
- Rimonabant
- Rimso-50
- Rinade-B.I.D.
- Rindal HPD
- Rindal-HD
- Ringl
- Rintatolimod
- Rinvoq
- Riociguat
- Riomet
- Riopan
- Riopan Plus
- Ripretinib
- Risankizumab-rzaa
- Risdiplam
- Risedronate
- Risedronic Acid And Calcium, Sequential
- Risedronic Acid, Calcium And Colecalciferol, Sequential
- Risperdal
- Risperdal Consta
- Risperdal M-TAB
- Risperidone
- Ritalin
- Ritalin LA
- Ritiometan
- Ritodrine
- Ritonavir
- Rituxan
- Rituxan Hycela
- Rituximab
- Rituximab-abbs
- rituximab-arrx
- Rituximab-pvvr
- Rituximab/hyaluronidase human
- Rivaroxaban
- Rivastigmine
- Rixubis
- Rizatriptan