Iodinated contrast media

Ionic

Nonionic

Monomeric (high osmolality)- 3:2

• iothalamate

• Diatrizoate

• Metrizoate

• iopanoic acid

• iotroxic acid

Dimeric (low osmolality)- 3:1

• ioxaglate

Monomeric (low osmolality)- 3:1

• iohexol

• iopamidol

Dimeric (Iso molar)- 6:1

• iodixanol

Mnemonic: iodixanol (din)

d - Dimeric
i - iso molar

n - Non ionic

Figure- iohexol (Non-ionic, Monomer, Low osmolality)

Figure- iopamidol (Non-ionic, Monomeric, Low osmolality)

Figure- iodixanol (Non-ionic, Dimeric, Iso osmolar)

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