Drug Interaction Report

Using belimumab together with ixazomib may increase the risk of side effects such as pneumonia, urinary tract infections, skin infection (cellulitis), and bronchitis. Talk to your doctor if you have any questions or concerns. Your doctor may already be aware of the risks but has determined that this is the best course of treatment for you and has taken appropriate precautions and is monitoring you closely for any potential complications. Contact your doctor immediately if you develop signs and symptoms of infection such as fever, chills, diarrhea, sore throat, muscle aches, shortness of breath, blood in phlegm, weight loss, red or inflamed skin, body sores, or pain or burning during urination. It is important to tell your doctor about all other medications you use, including vitamins and herbs. Do not stop using any medications without first talking to your doctor.

Food may interfere with the absorption of ixazomib, which may lead to lower blood levels of the medication and possibly reduced effectiveness. You should take ixazomib at least 1 hour before or 2 hours after eating. On days when you take both ixazomib and dexamethasone, make sure you do not take them at the same time, since ixazomib should be taken on an empty stomach while dexamethasone should be taken with food to prevent irritation and injury to the stomach.