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Omalizumab
Specialty Drug
Xolair
OMALIZUMAB is used to help treat allergic asthma and chronic hives. It may be given with other treatments for these conditions. The lowest GoodRx price for the most common version of Xolair is around $1,085.61, 18% off the average retail price of $1,332.16. Compare anti-IgEs.
Prescription Settings
brand
vial
150mg
1 vial
Xolair(brand)
vial
150mg
1 vial

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.

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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:

Less common

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

Rare

Cough

difficulty with swallowing

dizziness

fast heartbeat

hives, itching, or skin rash

malignant tumor

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

bleeding gums

blood in the urine or stools

chest pain

chills

difficulty in moving

fever

muscle pain or stiffness

pain in the joints

painful or difficult urination

pinpoint red spots on the skin

sore throat

sores, ulcers, or white spots on the lips or in the mouth

swollen glands

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:

More common

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

cold or flu-like symptoms

congestion

dryness or soreness of the throat

headache

hoarseness

leg pain

lumps

pain or tenderness around the eyes and cheekbones

stuffy or runny nose

voice changes

Less common

Arm pain

cracked, dry, or scaly skin

earache

Incidence not known

Hair loss

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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