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INFLIXIMAB is used to treat Crohn's disease and ulcerative colitis. It is also used to treat ankylosing spondylitis, plaque psoriasis, and some forms of arthritis. Compare TNF blockers.
Prescription Settings
6 vials
6 vials

Renflexis Side Effects

What should I watch for?

Your condition will be monitored carefully while you are receiving this medicine. Visit your doctor or health care professional for regular checks on your progress. You may need blood work done while you are taking this medicine. Before beginning therapy, your doctor may do a test to see if you have been exposed to tuberculosis.

Call your doctor or health care professional for advice if you get a fever, chills or sore throat, or other symptoms of a cold or flu. Do not treat yourself. This drug decreases your body's ability to fight infections. Try to avoid being around people who are sick.

This medicine may make the symptoms of heart failure worse in some patients. If you notice symptoms such as increased shortness of breath or swelling of the ankles or legs, contact your health care provider right away.

If you are going to have surgery or dental work, tell your health care professional or dentist that you have received this medicine.

If you take this medicine for plaque psoriasis, stay out of the sun. If you cannot avoid being in the sun, wear protective clothing and use sunscreen. Do not use sun lamps or tanning beds/booths.

Talk to your doctor about your risk of cancer. You may be more at risk for certain types of cancers if you take this medicine.


Common and Rare Side Effects

Along with its needed effects, a medicine may cause some unwanted effects. Although not all of these side effects may occur, if they do occur they may need medical attention.

Check with your doctor or nurse immediately if any of the following side effects occur:

More common

Chest pain






flushing or redness of the face


hives, itching, or rash

muscle pain

nasal congestion


runny nose


sore throat

stomach pain

tightness in the chest

troubled breathing

unusual tiredness or weakness


Less common

Back pain

bloody or cloudy urine

cracks in the skin at the corners of the mouth


difficult or painful urination

frequent urge to urinate

pain or tenderness around the eyes and cheekbones

soreness or irritation of the mouth or tongue

soreness or redness around the fingernails or toenails

vaginal burning or itching and discharge

white patches in the mouth or on the tongue


Abscess (area of infection containing pus)

black, tarry stools

blood in the urine or stools

bone or joint pain


feeling of fullness

hernia (lump in the abdomen or stomach)

irregular or pounding heartbeat

pain in the rectum

pain spreading from the abdomen or stomach to the left shoulder

pinpoint red spots on the skin

stomach pain (severe)

swollen or painful glands

tendon injury

unusual bleeding or bruising

unusual weight loss

yellow skin and eyes

Incidence not known

Bloody nose

burning, tingling, numbness or pain in the hands, arms, feet, or legs

change in mental status

clay-colored stools

continuing vomiting

dark or bloody urine

difficulty with speaking

difficulty with swallowing

fast heartbeat

general feeling of tiredness or weakness

heavier menstrual periods


inability to move the arms and legs

itching, puffiness, or swelling of the eyelids or around the eyes, face, lips, or tongue

light-colored stools

loss of appetite

loss of bladder control

lower back or side pain

muscle spasm or jerking of all extremities

noisy breathing

painless swelling in the neck, armpits, or groin

pale skin

red, scaling, or crusted skin

redness, soreness, or itching skin


sensation of pins and needles

severe muscle weakness, sudden and progressing

slow or irregular breathing

sores, welts, or blisters

stabbing pain

sudden loss of consciousness

sudden numbness and weakness in the arms and legs

unpleasant breath odor

upper right stomach pain

vomiting of blood

Other side effects not listed may also occur in some patients. If you notice any other effects, check with your healthcare professional.

Call your doctor for medical advice about side effects. You may report side effects to the FDA at 1-800-FDA-1088.

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