It is very important that your doctor check your progress at regular visits to make sure that this medicine is working properly. Blood tests may be needed to check for unwanted effects.
Cetuximab may cause a serious side effect called an infusion reaction. This can be life-threatening and require immediate medical attention. Tell your doctor or nurse right away if you have a fever, chills, trouble with breathing, lightheadedness, fainting, or chest pain within a few hours after you receive it.
Tell your doctor or nurse right away if you are having shortness of breath, cough, difficulty with breathing, or other breathing problems while being treated with this medicine. These may be symptoms of a serious lung problem.
Serious skin reactions can occur with this medicine. Check with your doctor right away if you have blistering, peeling, or loosening of the skin; dry skin; grooves or lines in the skin; red skin lesions; severe acne or skin rash; sores or ulcers on the skin; or fever or chills while you are using this medicine.
This medicine may make your skin more sensitive to sunlight. Use a sunscreen or sun-blocking lotion when you are outdoors. Wear protective clothing and hats. Avoid sunlamps and tanning beds.