It is very important that your doctor check you or your child closely while receiving this medicine to make sure it is working properly. Blood tests will be needed to check for unwanted effects.
This medicine may cause serious allergic reactions, including anaphylaxis, which can be life-threatening and requires immediate medical attention. Tell your doctor or nurse right away if you or your child has a rash, itching skin, difficulty with swallowing, dizziness, fast heartbeat, lightheadedness or fainting, restlessness, trouble breathing, swelling in your face, hands, tongue, or throat, or chest pain after you receive the medicine.
This medicine is made from donated human blood. Some human blood products have transmitted certain viruses to people who have received them, although the risk is low. Human donors and donated blood are both tested for viruses to keep the transmission risk low. Talk with your doctor if you have concerns about this risk.
Call your doctor right away if you or your child start to have bleeding problems, especially if this medicine has worked well for you before.