Iohexol (11 brand names, 3 dosage forms, 5 routes)
Available dosage forms: SOLUTION, FOR SOLUTION, INJECTABLE.
Routes of administration: ORAL, INJECTION, ORAL, RECTAL, INJECTION, ORAL, URETHRAL, INJECTION.
Brand Names
- IOHEXOL
- OMNIPAQUE 12
- OMNIPAQUE 140
- OMNIPAQUE 180
- OMNIPAQUE 210
- OMNIPAQUE 240
- OMNIPAQUE 300
- OMNIPAQUE 350
- OMNIPAQUE 70
- OMNIPAQUE 9
- ORALTAG
Boxed Warning
Use only the iohexol, iodine concentrations and presentations recommended for intrathecal procedure [see Dosage and Administration (2.2, 2.8)]. Intrathecal administration of iohexol of a wrong iodine concentration, even if inadvertent, may cause death, convulsions, seizures, cerebral hemorrhage, coma, paralysis, arachnoiditis, acute renal failure, cardiac arrest, rhabdomyolysis, hyperthermia, and brain edema [see Warnings and Precautions (5.1)].
Contraindications
Iohexol for hysterosalpingography is contraindicated during pregnancy or suspected pregnancy, menstruation or when menstruation is imminent, within 6 months after termination of pregnancy, within 30 days after conization or curettage, when signs of infection are present in any portion of the genital tract including the external genitalia, and when reproductive tract neoplasia is known or suspected because of the risk of peritoneal spread of neoplasm.
Adverse Reactions
The following clinically significant adverse reactions are described elsewhere in the labeling: Risks Associated with Intrathecal Administration of Iohexol Injection 140 mg Iodine/mL and 350 mg Iodine/mL [see Warnings and Precautions (5.1)] Risks Associated with Parenteral Administration of Iohexol Oral Solution [see Warnings and Precautions (5.2)] Hypersensitivity Reactions [see Warnings and Precautions (5.3)] Acute Kidney Injury [see Warnings and Precautions (5.4)] Cardiovascular Adverse Reactions [see Warnings and Precautions (5.5)] Thromboembolic Events [see Warnings and Precautions (5.6)] Thyroid Dysfunction in Pediatric Patients 0 to 3 Years of Age [see Warnings and Precautions (5.9)] Severe Cutaneous Adverse Reactions [see Warnings and Precautions (5.12)]
Mechanism of Action
The iodine atoms in iohexol provide attenuation of X-rays in direct proportion to the concentration of iohexol. Since concentration changes over time, iohexol provides time-dependent image contrast which may assist in visualizing body structures.
Overdosage
The adverse effects of overdosage in intra-arterial or intravenous administration are life-threatening and affect mainly the pulmonary and cardiovascular systems. The symptoms include: cyanosis, bradycardia, acidosis, pulmonary hemorrhage, convulsions, coma, and cardiac arrest. Treatment of an overdosage is directed toward the support of all vital functions, and prompt institution of symptomatic therapy. Iohexol can be dialyzed.