Anaphylaxis can develop in patients w/ undetectable IgA who have anti-IgA Abs; who had tolerated previous treatment w/ human normal Ig. Discontinue treatment immediately in case of pulmonary adverse reactions. Shock. Thromboembolic events eg, MI, CVA (stroke), pulmonary embolism & DVT. Acute renal failure. Aseptic meningitis syndrome. Haemolytic anaemia. Transient decrease in neutrophil count &/or episodes of neutropenia. Acute non-cardiogenic pulmonary oedema. Misleading +ve results in serological testing. Possibility of transmitting infective agents. Patients who receive human normal Ig for the 1st time or, is switched or when there has been long interval since previous infusion; w/ untreated infection or underlying chronic inflammation. Obese patients. Patients w/ pre-existing risk factors for thrombotic events (eg, advanced age, HTN, DM, history of vascular disease or thrombotic episodes, acquired or inherited thrombophilic disorders, prolonged periods of immobilisation, diseases which increase blood viscosity & severely hypovolemic patients); restricted Na diet. Monitor patients for any symptoms throughout whole infusion period; to detect potential adverse signs at the hospital during 1st infusion & for the 1st hr after 1st infusion in those naive to human normal Ig, those switched from alternative IVIg product or when there has been long interval since previous infusion; clinical signs & symptoms of haemolysis. Ensure adequate hydration prior to infusion. Monitor urine output; serum creatinine levels. Assess renal parameters prior to infusion. Perform neurologic exam including CSF studies in patients exhibiting signs & symptoms of aseptic meningitis syndrome. Avoid concomitant use w/ loop diuretics. Minor influence on ability to drive & use machines. Consider discontinuation in case of renal impairment. Pregnancy & lactation. Hypersensitivity in neonates & infants. Elderly >65 yr.