IVIG Dosing for Therapeutic Plasma Exchange

Context-Specific Dosing

The standard IVIG dose following therapeutic plasma exchange is 400 mg/kg, though higher doses of 1-2 g/kg may be used depending on the underlying condition being treated, according to Praxis Medical Insights 1
For autoimmune conditions requiring TPE + IVIG, a total dose of 1-2 g/kg is recommended, typically divided over 2 consecutive days, as suggested by Praxis Medical Insights 1
For pemphigus vulgaris treated with TPE, a dose of 1.2-2 g/kg divided over 3-5 days, repeated every 2-4 weeks, is recommended, based on guidelines from the British Journal of Dermatology 2 3

IVIG should be administered after plasma exchange is completed, not before, to avoid removing the infused immunoglobulin, except in life-threatening hemorrhage scenarios, as noted by Praxis Medical Insights 4

Screen for IgA deficiency before first IVIG administration to prevent severe anaphylaxis, and use IgA-depleted preparations if deficiency is detected, as recommended by Praxis Medical Insights 1
Monitor renal function during and after IVIG administration, as renal failure is a serious potential complication, according to Praxis Medical Insights 1 4
Consider premedication with diphenhydramine and acetaminophen to reduce infusion reactions, as suggested by Praxis Medical Insights 1
For patients with cardiac dysfunction or fluid overload risk, divide the dose over 2 days rather than single infusion, as recommended by Praxis Medical Insights 1

Use ideal body weight or adjusted body weight for obese patients, not actual body weight, to avoid excessive dosing, as suggested by Praxis Medical Insights 1