API Standards - R
- Rabeprazole
- Racecadotril
- Ractopamine
- Rafoxanide
- Ralfinamide
- Raloxifene
- Raltegravir
- Ramelteon
- Ramipril
- Ramiprilat
- Ramosetron
- Ranitidine
- Ranolazine
- Rapamycin
- Rapidosept
- Rasagiline
- Ravuconazole
- Rebamipide
- Reboxetine
- Regadenoson
- Regorafenib
- Rehmaionoside
- Relebactam
- Relugolix
- Remdesivir
- Remifentanil
- Remimazolam
- Remogliflozin
- Repaglinide
- Reproterol
- Reserpine
- Resmetirom
- Resocortol
- Resveratrol
- Retinol
- Retinyl Palmitate
- Retrorsine
- Revefenacin
- Revumenib
- Rezafungin
- Rhodamine 6G
- Ribavirin
- Ribociclib
- Riboflavin
- Ridinilazole
- Rifabutin
- Rifampicin
- Rifamycin
- Rifapentine
- Rifaximin
- Rigosertib
- Rilpivirine
- Riluzole
- Rimegepant
- Riociguat
- Ripasudil
- Ripretinib
- Risdiplam
- Risedronic Acid
- Risperidone
- Ritlecitinib
- Ritonavir
- Rivaroxaban
- Rivastigmine
- Rizatriptan
- Robenacoxib
- Rocuronium
- Rocuronium bromide
- Roflumilast
- Rolapitant
- Romidepsin
- Romifidine
- Ropinirole
- Ropivacaine
- Rosavin
- Rosiglitazone
- Rosuvastatin
- Rotigotine
- Roxadustat
- Roxatidine
- Roxithromycin
- RPR 121057
- RS 94287
- Rucaparib
- Rufinamide
- Rupatadine
- Rutin
- Ruxolitinib