Get emergency medical help if you have signs of an allergic reaction: hives; chest pain, difficult breathing; fever, chills, severe dizziness; swelling of your face, lips, tongue, or throat.
Some side effects may occur during the injection. Tell your caregiver if you feel dizzy, nauseated, light-headed, itchy or tingly, short of breath, or have a headache, fever, chills, muscle or joint pain, pain or tightness in your throat, chest pain, or trouble swallowing during the injection. Infusion reactions may also occur within 1 or 2 hours after injection.
Serious and sometimes fatal infections may occur during treatment with infliximab. Call your doctor right away if you have signs of infection such as: fever, extreme tiredness, flu symptoms, cough, or skin symptoms (pain, warmth, or redness).
Also call your doctor if you have:
skin changes, new growths on the skin;
pale skin, easy bruising or bleeding;
delayed allergic reaction (up to 12 days after receiving infliximab)--fever, sore throat, trouble swallowing, headache, joint or muscle pain, skin rash, or swelling in your face or hands;
liver problems--right-sided upper stomach pain, loss of appetite, yellowing of your skin or eyes, and not feeling well;
lupus-like syndrome--joint pain or swelling, chest discomfort, feeling short of breath, skin rash on your cheeks or arms (worsens in sunlight);
nerve problems--numbness or tingling, problems with vision, weakness in your arms or legs, seizure;
new or worsening psoriasis--skin redness or scaly patches, raised bumps filled with pus;
signs of heart failure--shortness of breath with swelling of your ankles or feet, rapid weight gain;
signs of a stroke--sudden numbness or weakness, trouble speaking or understanding what is said to you, problems with vision or balance, severe headache;
signs of lymphoma--fever, night sweats, weight loss, stomach pain or swelling, chest pain, cough, trouble breathing, swollen glands (in your neck, armpits, or groin); or
signs of tuberculosis--fever, cough, night sweats, loss of appetite, weight loss, feeling constantly tired.
Serious infections may be more likely in adults who are 65 years or older.
Common side effects may include:
stuffy nose, sinus pain;
fever, chills, sore throat;
cough, chest pain, shortness of breath;
high or low blood pressure;
headache, feeling light-headed;
rash, itching; or
stomach pain.
This is not a complete list of side effects and others may occur. Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088.
 Infliximab side effects (more detail)
