Iomeron (Iomeprol)

Iomeron is employed in diagnostic imaging to increase contrast between vascular and tissue structures.

• Contrast‑enhanced radiographic imaging: provides clearer delineation of bones and soft tissues for accurate diagnosis.
• Computed tomography (CT) scans: heightens attenuation differences, facilitating detection of lesions and vascular abnormalities.
• Angiography: outlines blood vessels and vascular lesions, improving visualization for interventional procedures.

• Iomeprol is a non‑ionic, low‑osmolality iodinated compound that absorbs X‑ray photons. After intravenous injection, it rapidly distributes within the vascular and extracellular spaces, increasing the radiodensity of blood and surrounding tissues. The high atomic number of iodine causes greater attenuation of X‑rays, producing enhanced contrast on radiographic, CT and angiographic images, which aids clinicians in distinguishing anatomical details. This effect persists for the duration of the imaging study before the agent is cleared renally.

Iomeprol may be associated with a range of adverse reactions, varying from mild to severe.

Common Side Effects

• Warm sensation at injection site
• Metallic taste in mouth
• Nausea
• Vomiting
• Headache
• Mild itching or rash

Serious or Rare Side Effects

• Anaphylactic reaction (severe allergy)
• Contrast‑induced nephropathy
• Thyroid dysfunction (hyper‑ or hypothyroidism)
• Severe hypotension
• Cardiac arrhythmias

When using Iomeron, several precautionary measures should be observed to minimize risk.

• Renal impairment: assess kidney function (eGFR) before administration.
• History of iodine allergy: consider alternative contrast agents or pre‑medication.
• Thyroid disease: monitor thyroid function tests as iodine load may affect hormone levels.
• Pregnancy: use only if essential, after evaluating benefit‑risk ratio.
• Hydration: ensure adequate fluid intake before and after the procedure to support renal clearance.
• Store at 2‑8 °C: keep refrigerated, protect from light, do not freeze or shake.

Iomeron can interact with certain medicines, requiring attention to avoid adverse outcomes.

Major Interactions (Avoid)

• Iodine‑containing drugs (e.g., amiodarone, potassium iodide): may increase total iodine burden and risk of toxicity.
• Nephrotoxic agents (e.g., aminoglycosides, NSAIDs, radiocontrast‑enhancing chemotherapy): heighten risk of renal injury.

Moderate Interactions (Monitor Closely)

• Diuretics: may affect renal clearance of the contrast medium.
• Metformin: consider temporary discontinuation in patients with impaired renal function to prevent lactic acidosis.
• Beta‑blockers: no direct pharmacokinetic interaction but monitor hemodynamic status during imaging.