About iohexol
Nonionic iodinated contrast agent
Used for
- Enhances CT and blood-vessel imaging.
- Helps visualize the urinary tract during imaging.
Usual adult dose
Dose varies by scan, body area, and technique; a radiology professional determines the amount.
Usual dose in children
Dose varies by age, weight, scan, and technique; a radiology professional determines the amount.
Common side effects
- Warmth or flushing
- Nausea or vomiting
- Headache or dizziness
- Injection-site discomfort
Important warnings
- Can cause serious allergic-like reactions, including rarely life-threatening reactions.
- Kidney injury risk is higher with kidney disease or dehydration.
- May affect thyroid function, especially in newborns and people with thyroid disease.
- Extravasation can injure tissue; monitor the injection site.
Pregnancy
Use when imaging benefits justify exposure; fetal effects from diagnostic radiation also require consideration.
Breastfeeding
Only small amounts enter breast milk and are poorly absorbed; breastfeeding usually need not be interrupted.
Interactions
- Metformin: kidney injury may increase risk of lactic acidosis; follow clinical guidance.
- Interleukin-2: may increase delayed skin reactions.
- Radioactive iodine: contrast can interfere with thyroid uptake testing or treatment.
AI-generated from general medical knowledge, not from this product's official leaflet. It may be incomplete or out of date. Not medical advice — ask a pharmacist or doctor before making any decision.