Discontinue inj/infusion immediately if allergic reactions & early symptoms of anaphylactic shock (eg, flush, rash, hives, wheals, generalised itching, swelling of lips, eyelid & tongue, dyspnoea, wheezing, chest pain, chest tightness, general feeling of being unwell, dizziness, faster heart beat & low BP) or extreme dizziness, loss of consciousness & extreme difficulty in breathing occur. Haemolysis following repetitive administration at short intervals or of very large doses in patients w/ blood group A, B or AB; thromboembolic events may occur. May develop neutralizing Ab (inhibitors) to von Willebrand factor in patients w/ von Willebrand's disease especially type 3. Possible passing of infections. Patients w/ depressed immune system or some types of anaemia (eg, sickle cell disease or haemolytic anaemia). Perform appropriate lab tests to ensure current dose is sufficient to reach & maintain adequate factor VIII or von Willebrand levels especially if having majoy surgery; confirm development of neutralizing Ab (inhibitors). Carefully select blood & plasma donors. Consider vaccination against hepatitis A & B in patients receiving regular/repeated human plasma-derived factor VIII products. Monitor patients on low Na diet. Not to be mixed w/ other medicinal products or solvents, except enclosed sterilised water for inj. Risk of serious Parvorirus B19 infection during pregnancy. Lactation. Childn <6 yr.