Omnipaque

This medicine is an X-ray contrast agent used to help doctors see inside your body during medical scans.

Form
injektioneste, liuos
Strength
350 mg I/ml
Active Ingredient
Iohexol
Manufacturer
GE Healthcare AS

How to Use

Dosage

The amount you get depends on the type of test, your age, weight, and general health. Your doctor will decide the right dose.

Method

This medicine is given as an injection into a vein, artery, or spinal fluid. It can also be used in body cavities or taken by mouth for certain tests.

Important

For adults, the total amount of iodine in the medicine given should not be more than 3 grams per day.

Possible Side Effects

COMMON
  • Feeling warm
  • Nausea, vomiting
  • Headache
  • Temporary changes in breathing rate, difficulty breathing
  • Aseptic meningitis (inflammation of the membranes around the brain and spinal cord, not caused by infection)
  • Diarrhea
  • Pancreatitis (inflammation of the pancreas), increased blood amylase levels
  • Lower abdominal pain
  • Pain
RARE
  • Severe allergic reactions, including difficulty breathing, rash, hives, itching, swelling of the face or throat, runny nose, sneezing, cough, and in very rare cases, life-threatening shock.
  • Taste changes (temporary metallic taste), fainting
  • Slow heart rate
  • High or low blood pressure
  • Swollen salivary glands
  • Excessive sweating, chills, fainting
  • Fever
  • Shivering
  • Low platelet count (thrombocytopenia)
  • Thyroid problems (overactive or temporarily underactive thyroid)
  • Confusion, agitation, restlessness, anxiety, disorientation, or memory loss
  • Dizziness, weakness, paralysis
  • Seizures, changes in consciousness, stroke, stupor, sensory issues (including reduced sensation), numbness, tingling, tremor
  • Temporary movement problems (including speech problems, difficulty speaking), brain disorder caused by contrast agent (encephalopathy)
  • Vision problems (including double vision, blurred vision), sensitivity to light
  • Temporary blindness
  • Temporary hearing loss
  • Irregular heartbeat (including slow or fast heart rate)
  • Heart attack, chest pain
  • Severe heart problems (including cardiac arrest, heart failure, coronary artery spasm, bluish skin)
  • Flushing
  • Shock, artery spasm, vein inflammation, blood clot in vein
  • Rash, itching, hives
  • Blistering skin inflammation, Stevens-Johnson syndrome, severe skin reactions (erythema multiforme, toxic epidermal necrolysis, acute generalized exanthematous pustulosis), drug rash with eosinophilia and systemic symptoms, worsening of psoriasis, redness, peeling skin
  • Cough, stopped breathing
  • Shortness of breath
  • Severe breathing issues or signs, lung swelling, acute respiratory distress syndrome, bronchospasm, laryngospasm, apnea, aspiration, asthma attack
  • Worsening of pancreatitis (inflammation of the pancreas)
  • Joint pain, muscle weakness, muscle spasms, back pain
  • Acute kidney injury
  • Increased creatinine levels in blood
  • Pain and discomfort
  • Weakness (including malaise and fatigue)
  • Injection site reactions (pain, swelling, redness)
  • Iodism (iodine poisoning, with symptoms like swollen and painful salivary glands)

Important Warnings

  • Tell your doctor if you have allergies, asthma, or have had a bad reaction to iodine-containing contrast agents before.
  • Make sure you drink enough fluids before and after the test, especially if you have kidney problems or diabetes.
  • This medicine can affect your thyroid function. Your doctor may check your thyroid before the test.
  • If you take beta-blockers, tell your doctor, as this medicine might increase breathing difficulties or interfere with treating severe allergic reactions.
  • Do not drive or operate machines for at least one hour after an injection, or for 24 hours after a spinal injection, if you still have symptoms.
Show 1 more warnings
  • An injection outside the blood vessel can cause local pain, swelling, and redness, but this usually goes away without serious problems.