- r-huepo
- rabeprazole
- rabies immunoglobulin
- ramipril
- ramipril + felodipine
- ranitidine
- reboxetine
- red sanders wood
- reserpine
- reserpine + hydroflumethiazide
- resina laricis
- resorcinol
- retinol
- rhubarb
- riboflavin
- riboflavine
- rifampicin
- rifampicin + isoniazid
- risedronic acid
- risperidone
- rosehip
- rosemary oil
- rosmarini
- roxatidine
- roxithromycin
- rutin
