SIDE EFFECTS: See also Warning section. Flushing, chills, muscle cramps, back/joint pain, fever, nausea/vomiting may occur. Tell your doctor or health care professional right away if any of these effects occur, persist, or worsen. Pain, redness, and swelling at the injection site may also occur. If these effects continue or become bothersome, tell your doctor. Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects. Tell your doctor if you experience any of these unlikely but serious side effects: easy bleeding/bruising, fast/irregular heartbeat, unusual tiredness, signs of kidney problems (such as change in the amount of urine, pink/bloody/frothy urine), sudden weight gain. Rarely, this product may contain substances that could cause infections because it is made from human blood. Discuss the risks and benefits with your doctor. Tell your doctor right away if you develop any signs of infection such as persistent sore throat/fever, yellowing eyes/skin, or dark urine. Treatment with this medication may rarely cause an inflammation of the brain (aseptic meningitis syndrome) several hours to 2 days after your treatment. Get medical help right away if you develop severe headache, stiff neck, drowsiness, high fever, sensitivity to light, eye pain, or severe nausea/vomiting. Lung problems may occur 1 to 6 hours after your treatment. You will be monitored closely for any lung problems after your treatment. A very serious allergic reaction to this drug is rare. However, get medical help right away if you notice any symptoms of a serious allergic reaction, including: rash, itching/swelling (especially of the face/tongue/throat), severe dizziness, trouble breathing. This is not a complete list of possible side effects. If you notice other effects not listed above, contact your doctor or pharmacist. In the US - Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088 or at www.fda.gov/medwatch. In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.

PRECAUTIONS: See also Warning section. Before receiving this medication, tell your doctor or pharmacist if you are allergic to it; or to other immunoglobulin products (such as IgG); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details. Before using this medication, tell your doctor or pharmacist your medical history, especially of: certain immune system problems (immunoglobulin A deficiency, monoclonal gammopathies), diabetes, high blood pressure, high blood fats (triglycerides), migraines, current blood infection (sepsis), kidney disease, severe loss of body fluids (dehydration). Tell your doctor of any recent or planned immunizations/vaccinations. This medication may prevent a good response to certain live viral vaccines (such as measles, mumps, rubella, varicella). If you have recently received any of these vaccines, your doctor may have you tested for a response or have you vaccinated again later. If you plan on getting any of these vaccines, your doctor will instruct you about the best time to receive them so you get a good response. Before having surgery, tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products). During pregnancy, this medication should be used only when clearly needed. Discuss the risks and benefits with your doctor. It is not known whether this drug passes into breast milk. Consult your doctor before breast-feeding.

DRUG INTERACTIONS: See also Warning section. Drug interactions may change how your medications work or increase your risk for serious side effects. This document does not contain all possible drug interactions. Keep a list of all the products you use (including prescription/nonprescription drugs and herbal products) and share it with your doctor and pharmacist. Do not start, stop, or change the dosage of any medicines without your doctor's approval. Some products that may interact with this drug include: drugs that may harm the kidney (e.g., aminoglycosides such as gentamicin), "water pills" (diuretics such as furosemide).

OVERDOSE: If someone has overdosed and has serious symptoms such as passing out or trouble breathing, call 911. Otherwise, call a poison control center right away. US residents can call their local poison control center at 1-800-222-1222. Canada residents can call a provincial poison control center.