- Io-Blend
- Io-sans 110
- Io-Shield
- iobenguane (123I)
- iobenguane (131I)
- Iobenzamic Acid
- Iobitridol
- Iocarmic Acid
- Iocetamic Acid
- Iodal HD
- Iodamide
- Iodex
- Iodine
- iodine (124I) 2beta-carbomethoxy-3beta-(4 iodophenyl)-tropane
- iodine (125I) CC49-monoclonal antibody
- iodine (125I) human albumin
- iodine (131I) human albumin
- iodine (131I) norcholesterol
- iodine iofetamine (123I)
- iodine ioflupane (123I)
- iodine iolopride (123I)
- Iodine/octylphenoxypolyglycolether
- IoDip-10
- IoDip-1000
- IoDip-1000C
- IoDip-102
- IoDip-105
- IoDip-12
- IoDip-502
- IoDip-505
- IoDip-510
- Iodixanol
- Iodo Plain
- iodocholesterol (131I)
- Iodoflex
- Iodoform
- Iodoheparinate
- Iodoshield
- Iodosorb
- Iodoxamic Acid
- Iodrol NR
- Iofen
- Iofen-DM NF
- Iofen-NF
- Iofendylate
- Ioglicic Acid
- Ioglycamic Acid
- Iohexol
- Iomeprol
- Ionamin
- Ionil Plus
- Ionosol-B
- Ionosol-MB
- Ionosol-T
- Iopamidol
- Iopanoic Acid
- Iopentol
- Iopidine
- Iopromide
- Iopydol
- Iosat
- Iotalamic Acid
- Iotex PSE
- Iotrolan
- Iotroxic Acid
- Iotussin D Liquid
- Ioversol
- Ioxaglic Acid
- Ioxilan
- Ioxitalamic Acid