Omalizumab Side Effects
What should I watch for?
After receiving each injection, you will be monitored in your doctor's office or clinic. Your doctor will determine how long you will be observed after each injection. You may need blood work done while you are taking this medicine.
Improvement of your asthma or allergies will not be immediate. Improvements will occur gradually. Do not stop taking any of your other asthma or allergy treatments unless otherwise directed by your doctor.
Some people who are at a high risk for parasite (worm) infections, get a parasite infection after receiving this drug. Your healthcare provider can test your stool to check for this type of infection if you are at risk.
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:
Blistering, crusting, irritation, itching, or reddening of the skin
body produces substance that can bind to drug making it less effective or cause side effects
difficulty with swallowing
puffiness or swelling of the eyelids or around the eyes, face, lips, or tongue
tightness in the chest
unusual tiredness or weakness
Incidence not known
Black, tarry stools
blood in the urine or stools
difficulty in moving
muscle pain or stiffness
pain in the joints
painful or difficult urination
pinpoint red spots on the skin
sores, ulcers, or white spots on the lips or in the mouth
unusual bleeding or bruising
Some side effects may occur that usually do not need medical attention. These side effects may go away during treatment as your body adjusts to the medicine. Also, your health care professional may be able to tell you about ways to prevent or reduce some of these side effects. Check with your health care professional if any of the following side effects continue or are bothersome or if you have any questions about them:
Bleeding, blistering, burning, coldness, discoloration of skin, feeling of pressure, hives, infection, inflammation, itching, lumps, numbness, pain, rash, redness, scarring, soreness, stinging, swelling, tenderness, tingling, ulceration, or warmth at the injection site
body aches or pain
dryness or soreness of the throat
pain or tenderness around the eyes and cheekbones
stuffy or runny nose
Incidence not known
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.