• Ravisol mixture: mistletoe herb and leaves white horseweed field horsetail Japanese sophora fruits horse chestnut seeds hawthorn fruits red clover flowers periwinkle minor herb
• Risdiplam
• rabbit antithymocyte immunoglobulin
• rabeprazole
• racecadotril
• racemic camphor
• racemic menthol
• raltegravir
• ramipril
• ranibizumab
• ranitidine
• ranolazine
• rasagiline
• rauwolfia alkaloids total
• rebamipide
• recombinant human blood coagulation factor VIII octocog alfa
• recombinant human erythropoietin
• recombinant human insulin
• recombinant human interferon alpha-2b
• recombinant human thrombopoietin
• recombinant isophane human insulin
• rectified eucalyptus oil
• rectified lemon oil
• rectified myrtle oil
• rectified sweet orange oil
• refined castor oil
• refined olive oil
• refined soybean oil
• regorafenib
• relugolix
• remdesivir
• remifentanil
• repaglinide
• reserpine
• resorcinol
• retinol
• retinol acetate
• rhizome of upright bistort
• rhizomes of lapacho
• ribavirin
• ribociclib
• riboflavin
• ribonucleic acid
• rifampicin
• rifamycin
• rifaximin
• riluzole
• rimantadine
• riociguat
• risankizumab