Iomeron (Iomeprol)

Iomeron (iomeprol) is a non‑ionic iodinated contrast agent used to improve imaging of vascular and tissue structures.

• Angiography: enhances visualization of blood vessels for diagnostic and interventional procedures.
• Arthrography: improves delineation of joint spaces to assess cartilage and ligament integrity.
• Myelography: provides contrast for spinal canal imaging to detect nerve root compression.
• Computed tomography (CT) imaging: increases X‑ray attenuation for clearer cross‑sectional images.
• Contrast‑enhanced radiographic examinations: facilitates detection of lesions and vascular abnormalities.

• Iomeprol contains a high density of iodine atoms that absorb X‑rays more effectively than surrounding tissues. When administered intra‑arterially, intra‑articular, or intrathecally, it distributes within the vascular or targeted compartment, increasing radiographic attenuation and thereby creating a stark contrast between the enhanced area and adjacent structures on imaging studies.

Iomeron may cause a range of adverse reactions, most of which are mild and transient.

Common Side Effects

• Warm sensation: transient feeling of heat during injection.
• Nausea: mild upset stomach occurring shortly after administration.
• Metallic taste: brief metallic flavor in the mouth.
• Headache: mild to moderate headache post‑procedure.

Serious or Rare Side Effects

• Anaphylactic reaction: severe allergic response requiring immediate medical attention.
• Acute kidney injury: sudden decline in renal function, especially in patients with pre‑existing kidney disease.
• Severe hypotension: marked drop in blood pressure that may necessitate intervention.

Before using Iomeron, clinicians should consider several safety measures.

• Renal function assessment: evaluate serum creatinine and eGFR to identify patients at risk of contrast‑induced nephropathy.
• Allergy history: review any prior reactions to iodinated contrast agents.
• Hydration status: ensure adequate patient hydration to reduce renal risk.
• Dose minimisation: use the lowest effective volume for the intended imaging study.
• Vital sign monitoring: observe blood pressure and heart rate during and after injection.
• Store at ambient temperature: keep in original container, protect from moisture and direct sunlight.

Iomeron can interact with other substances that affect renal function or allergic risk.

Major Interactions (Avoid)

• Concurrent iodinated contrast agents: may increase cumulative iodine load.
• Nephrotoxic drugs (e.g., aminoglycosides, high‑dose NSAIDs): heighten risk of kidney injury.
• Beta‑blockers: can mask contrast‑induced tachycardia.

Moderate Interactions (Monitor Closely)

• Diuretics: may alter fluid balance and affect renal clearance.
• ACE inhibitors or ARBs: potential additive effect on renal function.
• Thyroid medications: excess iodine may interfere with thyroid hormone synthesis.