- Ibudone
- Idamycin
- IDkit Hp
- Ifex
- Ilaris
- Ilotycin
- Imagent
- Imitrex
- Imitrex Nasal
- Imlygic
- Imodium
- Imovax Rabies
- Impavido
- Imuran
- Inapsine
- Incivek
- Increlex
- Incruse Ellipta
- Inderal
- Inderide
- Indocin
- Indocin Rectal
- Indocin SR
- Indocyanine Green
- Influenza A Virus Vaccine, H1n1
- Inlyta
- Innohep
- Inomax
- Inspra
- Intal
- Integrilin
- Intelence
- Intron A
- Intuniv
- Inulin
- INVanz
- Invega
- Invega Sustenna
- Inversine
- Invirase
- Invokamet
- Invokana
- Iobenguane I 131
- Iodine And Potassium Iodide
- Iodopen
- Iodotope
- Iodotope Sodium Iodide
- Iopidine
- Iopromide
- Ipol
- Iquix
- Iressa
- Isentress
- Ismelin
- Ismotic
- Isoket
- Isopto Carbachol
- Isopto Cetamide
- Istodax
- Isuprel