Za-ZtZu-Zz
ZZa-Zt
- Zanaflex vs. Flexeril
- Zanaflex vs. Norflex
- Zanaflex vs. Soma
- Zanaflex vs. Ultram
- Zantac vs. Prilosec
- Zebeta vs. Bystolic
- Zebeta vs. Inderal LA, Inderal XL, Hemangeol
- Zebeta vs. Lopressor, Toprol XL
- Zebeta vs. Tenormin
- Zegerid vs. Nexium
- Zegerid vs. Prilosec
- Zegerid vs. Protonix
- Zegerid vs. Zantac
- Zeposia vs. Mayzent
- Zeposia vs. Rebif
- Zinbryta vs. Aubagio
- Zinbryta vs. Gilenya
- Zinbryta vs. Lemtrada
- Zinbryta vs. Ocrevus
- Zinbryta vs. Tecfidera
- Zinbryta vs. Tysabri
- Zinplava vs. Dificid
- Zinplava vs. Flagyl
- Zinplava vs. Vancomycin
- Zithromax vs. Augmentin
- Zithromax vs. Bactrim
- Zithromax vs. Biaxin
- Zithromax vs. Cipro
- Zithromax vs. Keflex
- Zithromax vs. Levaquin
- Zithromax vs. Omnicef
- Zocor vs. Crestor
- Zocor vs. Livalo
- Zocor vs. Pravachol
- Zocor vs. Trilipix
- Zocor vs. Zetia
- Zofran vs. Aloxi
- Zofran vs. Antivert
- Zofran vs. Bonjesta
- Zofran vs. Compazine
- Zofran vs. Diclegis
- Zofran vs. Reglan
- Zohydro ER vs. Oxycontin
- Zoladex vs. Eligard
- Zoladex vs. Firmagon
- Zoladex vs. Lupron
- Zoladex vs. Soltamox, Nolvadex
- Zolgensma vs. Spinraza
- Zoloft vs. Celexa
- Zoloft vs. Drizalma Sprinkle
- Zoloft vs. Effexor
- Zoloft vs. Irenka
- Zomig vs. Imitrex
- Zomig vs. Maxalt
- Zonegran vs. Gabapentin
- Zonegran vs. Keppra
- Zonegran vs. Lyrica
- Zonegran vs. Phenobarbital
- Zosyn vs. Augmentin
- Zosyn vs. Invanz
- Zosyn vs. Levaquin
- Zosyn vs. Vancomycin
- Zovirax vs Abreva
- Zovirax vs. Avaclyr
- Zovirax vs. Denavir
- Zovirax vs. Famvir
- Zovirax vs. Lysine
- Zovirax vs. Valcyte
- Zovirax vs. Valtrex
- Zovirax vs. Vitrasert
- Zovirax vs. Zirgan
ZZu-Zz
- Zulresso vs. Celexa
- Zulresso vs. Cymbalta
- Zulresso vs. Drizalma Sprinkle
- Zulresso vs. Irenka
- Zulresso vs. Lexapro
- Zulresso vs. Pristiq
- Zulresso vs. Spravato
- Zulresso vs. Trintellix
- Zulresso vs. Zoloft
- Zyban vs. Chantix
- Zyban vs. Wellbutrin
- Zyban vs. Zoloft
- Zyprexa vs. Clozaril
- Zyprexa vs. Eskalith (Lithium)
- Zyrtec vs. Claritin
- Zyrtec vs. Claritin D
- Zyrtec vs. Xyzal
- Zyvox vs. Penicillin-VK
- Zyvox vs. Vancomycin