Ra-RhRi-Rz
RRa-Rh
- Rebif vs. Aubagio
- Rebif vs. Gilenya
- Rebif vs. Lemtrada
- Rebif vs. Tecfidera
- Rebif vs. Tysabri
- Reblozyl vs. BiferaRx
- Reblozyl vs. FeRiva
- Reblozyl vs. Procrit
- Reblozyl vs. Retacrit
- Reblozyl vs. Revlimid
- Reclast vs. Prolia
- Relafen vs. Cataflam
- Relafen vs. Celebrex
- Relafen vs. Lodine
- Relafen vs. Mobic
- Relafen vs. Motrin (Ibuprofen)
- Relafen vs. Naproxen (Aleve, Anaprox, Naprosyn)
- Relafen vs. Norco
- Relafen vs. Solaraze
- Relafen vs. Voltaren
- Relafen vs. Zipsor, Zorvolex
- Relenza vs. Tamiflu
- Relenza vs. Xofluza
- Remeron vs. Ambien
- Remeron vs. Celexa
- Remeron vs. Cymbalta
- Remeron vs. Effexor
- Remeron vs. Lexapro
- Remeron vs. Prozac
- Remeron vs. Seroquel
- Remeron vs. Trazodone
- Remeron vs. Wellbutrin
- Remeron vs. Xanax
- Remeron vs. Zoloft
- Remicade vs. Humira
- Requip vs. Horizant
- Requip vs. Mirapex
- Requip vs. Neupro
- Requip vs. Neurontin (Gabapentin)
- Requip vs. Rytary
- Restoril vs. Klonopin
- Restoril vs. Ambien
- Restoril vs. Ativan
- Restoril vs. Trazodone, Oleptro
- Restoril vs. Vistaril
- Retevmo vs. Gavreto
- Retin-A vs. Avage, Fabior, Tazorac
- Retin-A vs. Differin
- Reyvow vs. Aimovig
- Reyvow vs. Ajovy
- Reyvow vs. Imitrex
- Reyvow vs. Maxalt
- Reyvow vs. Zecuity
RRi-Rz
- Rinvoq vs. Eticovo
- Rinvoq vs. Hadlima
- Rinvoq vs. Olumiant
- Rinvoq vs. Otezla
- Rinvoq vs. Simponi
- Risperdal vs. Abilify
- Risperdal vs. Geodon
- Risperdal vs. Haldol
- Risperdal vs. Invega
- Risperdal vs. Latuda
- Risperdal vs. Risperdal Consta
- Risperdal vs. Seroquel
- Risperdal vs. Xanax
- Risperdal vs. Zyprexa
- Rituxan vs. Actemra
- Rituxan vs. CellCept
- Rituxan vs. Cytoxan
- Rituxan vs. Gazyva
- Rituxan vs. Hadlima
- Rituxan vs. Humira
- Rituxan vs. Ocrevus
- Rituxan vs. Orencia
- Rituxan vs. Remicade
- Rituxan vs. Rituxan Hycela
- Rituxan vs. Tysabri
- Robaxin vs. Baclofen
- Robaxin vs. Flexeril
- Robaxin vs. Parafon Forte (Chlorzoxazone)
- Robaxin vs. Skelaxin
- Robaxin vs. Soma
- Robaxin vs. Ultram
- Robaxin vs. Valium
- Robaxin vs. Zanaflex
- Robinul vs. Bentyl
- Robinul vs. Cuvposa
- Robinul vs. Ditropan
- Robinul vs. Levsin
- Rocephin vs. Cefazolin
- Rocephin vs. Ceftin
- Rocephin vs. Cipro
- Rocephin vs. Fortaz
- Rocephin vs. Maxipime
- Rocklatan vs. Vyzulta
- Roweepra vs. Briviact
- Roweepra vs. Keppra
- Roweepra vs. Sabril
- Roweepra vs. Spritam
- Roweepra vs. Zarontin
- Rozlytrek vs. Tagrisso
- Rozlytrek vs. Vitrakvi
- Rybelsus vs. Farxiga
- Rybelsus vs. Ozempic
- Rybelsus vs. Trulicity
- Rytary vs. Stalevo