Imeron (Iomeprol)

Imeron is an iodinated contrast agent used in diagnostic imaging procedures that require enhanced radiographic detail.

• Angiography: improves visualization of blood vessels for diagnostic and interventional purposes.
• Arthrography: delineates joint structures to aid in the assessment of cartilage, ligaments and menisci.
• Computed Tomography (CT) imaging: increases contrast between tissues, facilitating detection of lesions and anatomical abnormalities.

• Iomeprol is a non‑ionic, water‑soluble iodinated contrast medium. Its iodine atoms have a high atomic number, which absorbs X‑ray photons and increases radiodensity of the administered area. After injection, the agent distributes rapidly within the extracellular fluid, remains largely unbound to plasma proteins, and provides transient contrast enhancement that improves the differentiation of anatomical structures on imaging studies.

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

Common Side Effects

• Warmth or flushing sensation during injection.
• Metallic taste or mild nausea.
• Mild headache or transient dizziness.

Serious or Rare Side Effects

• Severe allergic reactions, including anaphylaxis.
• Acute kidney injury, especially in patients with pre‑existing renal impairment.
• Thyroid dysfunction due to iodine load.
• Cardiopulmonary arrest or severe hypotension.

Prior to administration, clinicians should consider several safety measures.

• Renal Function Assessment: evaluate serum creatinine and eGFR, especially in at‑risk patients.
• Allergy History Review: confirm no prior severe reactions to iodinated contrast.
• Hydration: ensure adequate fluid intake before and after the procedure.
• Hyperthyroidism Caution: avoid or use minimal dose in patients with uncontrolled thyroid disease.
• Dose Optimization: employ the lowest effective volume for the specific imaging study.
• Monitoring: observe patients for immediate and delayed reactions during and after injection.
• Store at ambient temperature: keep in original container, protect from moisture and direct light.

Imeron can interact with other substances that affect renal function or iodine handling.

Major Interactions (Avoid)

• Concurrent administration of other iodinated contrast agents, which may cause cumulative iodine toxicity.
• Use with nephrotoxic drugs (e.g., aminoglycosides, high‑dose NSAIDs) in patients with compromised renal function.

Moderate Interactions (Monitor Closely)

• Co‑administration with diuretics may increase the risk of volume depletion and renal injury.
• Thyroid hormone therapy in hyperthyroid patients may exacerbate thyroid hormone excess.
• Beta‑blockers can mask early signs of anaphylactoid reactions, requiring careful monitoring.