It is very important that your doctor check your progress at regular visits to make sure that this medicine is working properly and to decide if you should continue to take it.
You should not receive this medicine if you are also using other biologic therapies or cyclophosphamide (Cytoxan®).
Tell your doctor if you are pregnant or if you plan to become pregnant. Women who could potentially get pregnant while receiving this medicine must use an effective form of birth control during therapy and for at least 4 months after the last dose.
This medicine may increase your risk of developing infections. Avoid being near people who are sick while you are receiving this medicine. Wash your hands often. Tell your doctor if you have any kind of infection before you receive the medicine. Also tell your doctor if you have ever had an infection that would not go away or an infection that kept coming back.
Call your doctor right away if you have blurred vision; a cough that won't go away; fever, chills, or flu-like symptoms, such as a runny or stuffy nose; a headache; night sweats; or weight loss. These may be signs that you have an infection.
Using this medicine may increase your risk of getting cancer. Talk to your doctor if you have concerns about this risk.
Belimumab may cause an infusion reaction while you are receiving it or right after the infusion ends. Check with your doctor or nurse right away if you have a headache, itching, dizziness, fainting, lightheadedness, nausea, muscle or joint pain, or a rash.
This medicine may cause a serious type of allergic reaction called anaphylaxis. Anaphylaxis can be life-threatening and requires immediate medical attention. Tell your doctor right away if you have chest pain, hives, itching, a rash, swelling of the face, tongue, and throat, or trouble breathing after you receive the medicine.
This medicine may cause some people to be agitated, irritable, or display other abnormal behaviors. It may also cause some people to have suicidal thoughts and tendencies or to become depressed. If you or your caregiver notice any of these unwanted effects, tell your doctor right away.
While you are being treated with belimumab, and after you stop treatment with it, do not get any immunizations (vaccines) without your doctor's approval. In addition, you should not be around other persons living in your household who receive live virus vaccines. Some examples of live virus vaccines include measles, mumps, influenza (nasal flu vaccine), poliovirus (oral form), rotavirus, and rubella. If you have questions about this, talk to your doctor.