Iopentol

Source: Wikipedia, the free encyclopedia.
Iopentol
Intravenous, by mouth, injection into body cavities
ATC code
Legal status
Legal status
  • Withdrawn
Pharmacokinetic data
Protein bindingLow
MetabolismNone
Elimination half-life2 hrs (intravenous)
Excretion98% via kidneys
Identifiers
  • 1-N,3-N-bis(2,3-dihydroxypropyl)-5-[N-(2-hydroxy-3-methoxypropyl)acetamido]-2,4,6-triiodobenzene-1,3-dicarboxamide
JSmol)
  • CC(=O)N(CC(COC)O)c1c(c(c(c(c1I)C(=O)NCC(CO)O)I)C(=O)NCC(CO)O)I
  • InChI=1S/C20H28I3N3O9/c1-9(29)26(5-12(32)8-35-2)18-16(22)13(19(33)24-3-10(30)6-27)15(21)14(17(18)23)20(34)25-4-11(31)7-28/h10-12,27-28,30-32H,3-8H2,1-2H3,(H,24,33)(H,25,34) ☒N
  • Key:IUNJANQVIJDFTQ-UHFFFAOYSA-N ☒N
 ☒NcheckY (what is this?)  (verify)

Iopentol (trade name Imagopaque) is a pharmaceutical drug that was used as a

X-ray imaging in Europe.[1]

Medical uses

Uses included

It can be injected

into blood vessels or body cavities or given by mouth.[2]

Contraindications

Hysterosalpingography is contraindicated during acute inflammation in the

Adverse effects

Adverse effects include nausea, vomiting, headache, as well as low or high blood pressure or heart rate. Allergy-like reactions such as rashes are usually mild; glottal edema, shock and cardiac arrest are rare.[2]

Interactions

Iodine-131, a radioactive isotope used for thyroid imaging (scintigraphy) and therapy of thyroid cancers, can be less effective when used within two to six weeks after application of iopentol because of residual iodine in the body.[2]

Pharmacology

Chemistry and mechanism of action

Contrast CT of a patient with brain metastases from breast cancer, before (left) and after (right) injection of an iodine-containing contrast agent

Iopentol is an iodine-containing, water-soluble radiocontrast agent. The iodine atoms readily absorb

osmolality, meaning that the solution has a relatively low concentration of molecules; this is usually associated with fewer adverse effects than high-osmolality contrast agents.[1][2]

A phase III clinical trial concluded that iopentol produces images of a similarly high quality as iohexol, and that it is equally well tolerated by patients.[1]

Pharmacokinetics

After intravenous injection, iopentol is distributed in the

glomerular filtration. Only 2% are excreted in the faeces. The biological half-life is two hours.[1][2]

References

  1. ^ .
  2. ^ a b c d e f Haberfeld H, ed. (2020). Austria-Codex (in German). Vienna: Österreichischer Apothekerverlag. Imagopaque 150 mg J/ml-parenterale Röntgenkontrastmittellösung.