- U-Cort
- U-Kera
- U-Lactin
- U-Tri-Lone

- Uaa
- Ubidecarenone
- Ubrelvy
- Ubrogepant
- Uceris
- UdderBlend
- Udderdine
- Uddergold
- Udenyca

- Ugesic
- Ulcerease
- UlcerGard

- Ulesfia

- Ulipristal

- Uloric

- Ulr-la
- Ultane
- Ultiva
- Ultomiris

- Ultra Mide
- Ultra Mylanta Calci Tabs
- Ultra Tears
- Ultrabrom
- Ultrabrom PD
- Ultracare
- Ultracef

- Ultracept
- Ultracet
- Ultralytic
- Ultralytic 2
- Ultram

- Ultram ER

- Ultraprin

- Ultrase
- Ultravate

- Ultresa

- Umeclidinium

- Umeclidinium and Vilanterol

- Umecta
- Umecta PD
- Un-Aspirin
- Unasyn
- Unasyn ADD-Vantage
- Unblemish
- Unburn

- Undecylenic Acid
- Undecylenic Acid, Combinations
- Unguentine
- Unguentine Maximum Strength
- Unguentine Plus
- Uni All 12
- Uni Bronchial
- Uni Decon
- Uni Hist PDX
- Uni Serp
- Uni Tuss HC
- Uni-Ace
- Uni-Ace Child
- Uni-Ann
- Uni-Antacid
- Uni-Buff
- Uni-Cal 500
- Uni-Case
- Uni-Cof
- Uni-Cof Expectorant
- Uni-Dur

- Uni-Guaifen 600/300
- Uni-Hist
- Uni-Hist DM Pediatric Drops
- Uni-Hist PDX Drops
- Uni-Lan
- Uni-Lev 5.0
- Uni-Mint
- Uni-Perr
- Uni-Pro

- Uni-Sed
- Uni-sed Plus
- Uni-Sport
- Uni-Tren
- Uni-Tricof HC
- Uni-Tris
- Unifed
- Unilax
- Unipen

- Uniphyl

- Uniphyl CR

- Unipres
- Uniprim
- Uniretic

- Uniserts
- Unisom

- Unisom Sleep
- Unisom with Pain Relief
- Unituxin

- Univasc

- Unoprostone

- Upadacitinib
- Uplizna
- Upneeq
- Uptravi

- Uramaxin
- Urapidil
- Urapine
- Urate Oxidase
- Urban
- Urban DS
- Ureacin-10
- Ureacin-20
- Urealac
- Ureaphil
- Urecholine

- Urelle
- Uretron
- Uretron DS
- Urex
- Uri-Sep SC
- Uribel
- Uricalm
- Uridine triacetate

- Uridon Modified
- Urimar T
- Urimax
- Urised
- Urisedamine
- Urispas
- Uristat
- Uritin
- Uro Blue
- Uro-Mag
- Uro-Phosphate
- Urobiotic
- Urocit-K
- Urodol
- Uroeze
- Urofollitropin

- Urogesic
- Urogesic Blue
- Urogesic Blue Reformulated Apr 2012
- Urokinase
- Urolene Blue
- Urologic G
- Uroplus
- Uroqid-Acid No.2
- Uroxatral

- Ursinus
- Urso 250

- Urso Forte

- Ursodiol

- Usept
- Ustekinumab

- Ustell
- UTA Capsule
- Utac
- UTI Relief
- Utibron Neohaler

- Uticap
- Uticort

- Utira
- Utopic
- Utrona-C
- Uvadex