Davis's Drug Guide
- Ibavyr
- Ibrance
- Ibsrela
- Iclevia
- Iclusig
- Idacio
- Idamycin PFS
- Idhifa
- Ifex
- Igalmi
- IL-2
- Ilaris
- Ilumya
- imber
- Imbruvica
- Imcivree
- Imdur
- Imfinzi
- Imitrex
- Imitrex DF
- Imitrex STATdose
- Imjudo
- Imkeldi
- Immphentiv
- Imodium A-D
- Imovane
- Impavido
- Impoyz
- Imuldosa
- Imuran
- Imvexxy
- Inapsine
- Inbrija
- Incassia
- Incivek
- Inclunox
- Inclunox HP
- Increlex
- Incruse Ellipta
- Inderal
- Inderal LA
- Inderal XL
- Indian dye
- Indian ginseng
- Indian paint
- Indian plant
- Indian Valerian
- Indocin
- Infacol
- Infant's Feverall
- InFeD
- Infergen
- Inflectra
- Infumorph
- Ingrezza
- Ingrezza Sprinkle
- ingwer
- ingwerwurzel
- Inhibace
- Injectafer
- Inlyta
- Innohep
- InnoPran XL
- Innovar
- Inocor
- Inpefa
- Inqovi
- Inrebic
- Insomnal
- Inspiolto Respimat
- Inspra
- Insta-Char
- Insta-Char Aqueous Suspension
- Insta-glucose
- Insulin Reaction
- Integrilin
- Intelence
- interleukin-2
- intoxicating pepper
- Intrachol
- Intralipid
- Intrarosa
- Intron A
- Introvale
- Intuniv
- Intuniv XR
- INVanz
- Invega
- Invega Hafyera
- Invega Sustenna
- Invega Trinza
- Invirase
- Invokana
- Ionsys
- Iprivask
- Iqirvo
- Iressa
- Isentress
- Isentress HD
- Isibloom
- Ismelin
- Ismo
- isoflavone
- Isoptin SR
- Isordil
- Istodax
- Isturisa
- Isuprel
- Itovebi
- Iveegam EN
- Ivra
- Iwilfin
- Ixempra Kit
- Ixiaro
- Ixifi
- Izervay