Pain at the injection site, fever, dizziness, headache, drowsiness, numb/tingling skin, and muscle aches may occur. If any of these effects persist or worsen, tell your doctor or pharmacist promptly.
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.
This medication is made from human blood. There is a very small chance that you may get infections from this medication (including viral infections such as hepatitis, parvovirus B19), even though careful screening of blood donors, special manufacturing processes, and many tests are all used to reduce this risk. Discuss the benefits and risks of treatment with your doctor. Tell your doctor immediately if you develop any signs of hepatitis or other infection, including persistent fever, persistent sore throat, stuffy nose, unusual tiredness, unusual drowsiness, joint pain, persistent nausea/vomiting, stomach/abdominal pain, yellowing eyes/skin, dark urine.
A very serious allergic reaction to this drug is rare. However, stop receiving the drug and seek immediate medical attention if you notice any symptoms of a serious allergic reaction, including: hives, rash, itching/swelling (especially of the face/tongue/throat), chest tightness, 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.
In Canada - Call your doctor for medical advice about side effects. You may report side effects to Health Canada at 1-866-234-2345.