Davis's Drug Guide
- Radicava
- Radicava ORS
- Radiogardase
- Radix angelicae gigantis
- Ragwitek
- Ralivia
- Ranexa
- Rapaflo
- Rapamune
- Rapivab
- Raptiva
- Rasilez
- Rasuvo
- rattle root
- rattle top
- rattleweed
- Ravicti
- Rayaldee
- Rayos
- Razadyne
- Razadyne ER
- Reactine
- Rebetol
- Rebif
- Reblozyl
- Recarbrio
- Reclast
- Reclipsen
- Recombinate
- Rectiv
- Redesca
- Redesca HP
- red ginseng
- red gum
- red sunflower
- Refludan
- Reglan
- Regonol
- Regranex
- Reguloid Natural
- Relafen
- Relafen DS
- Relaxa
- Relenza
- Releuko
- Relexxii
- Relistor
- Relpax
- Reltone
- Relyvrio
- Remeron
- Remeron RD
- Remeron SolTab
- Remicade
- Remifemin
- Remodulin
- Remsima
- Renagel
- Renflexis
- Renova
- renshen
- Renvela
- ReoPro
- Repatha
- Reprexain
- Repronex
- Requip
- Requip XL
- Rescriptor
- Resotran
- RestoraLax
- Restoril
- Retacrit
- Retavase
- Retin-A
- Retin-A Micro
- Retrovir
- Revatio
- Revcovi
- Revestive
- ReVia
- Revlimid
- Revolade
- Revonto
- Rextovy
- Rexulti
- Reyataz
- Reyvow
- Rezenopy
- Rezipres
- Rezira
- Rezulin
- Rezurock
- Rezvoglar KwikPen
- Rheumatrex
- Rhinalar
- Rhinedecon
- Rhinocort Allergy
- Rhinocort Aqua
- RhoGAM
- Rho-Nitro
- Rhophylac
- Riabni
- Ridaura
- Rifadin
- Rilutek
- Rimactane
- Rinvoq
- Riomet
- Riomet ER
- RisperDAL
- RisperDAL Consta
- RisperDAL M-TAB
- Ritalin
- Ritalin LA
- Rituxan
- Rituxan Hycela
- Rituxan SC
- Rivanase AQ
- Rivasa
- Rivelsa
- Rivive
- Rivotril
- Riximyo
- RizaFilm
- Robafin Cough
- Robaxin
- Robinul
- Robinul Forte
- Robitussin
- Robitussin Children's Cough Long-Acting
- Robitussin CoughGels Long-Acting
- Robitussin Cough Long-Acting
- Robitussin Lingering Cold Long-Acting CoughGels
- Rocaltrol
- Rocephin
- Rofact
- Rogitine
- Rolaids Calcium Rich
- Rolvedon
- Roman, English, or common chamomile (Anthemis nobilis)
- Romazicon
- Rosin rose
- Rosiver
- Rosmarinus officinalis
- Rotarix
- Rotateq
- Rowasa
- Roweepra
- Roxanol
- Roxicodone
- Roxybond
- Rozerem
- Rozlytrek
- Rubraca
- Ruconest
- rudbeckia
- Rukobia
- Ru-lets
- Rulox
- Ruxience
- Ruzurgi
- Ryanodex
- Rybelsus
- Rydapt
- Rykindo
- Rylaze
- Rymti
- Rytary
- Rythmodan
- Rythmol
- Rythmol SR
- Ryvent
- Ryzneuta