- Radioiodine treatment
- Raloxifene
- Ramipril
- Ranitidine
- Rasagiline
- Razene®
- Redipred®
- Rehydration salts
- Rehydration solution
- Relenza®
- Remdesivir
- Requip®
- Respigen®
- Respimat device
- Rheumatoid arthritis medicines
- Ridal®
- Rinvoq
- Risedronate
- Risperdal®
- Risperidone
- Ritalin®
- Rituximab
- Rivaroxaban
- Rivastigmine
- Rizamelt®
- Rizatriptan
- Robitussin®
- Ropinirole
- Rosuvastatin
- Rotavirus vaccine
- Roxithromycin
- Rubifen®