what is human immunoglobulin
A Stacy Wiegman, PharmD , Pharmacy, answered. Human normal immunoglobulin (HNIG) is another name for immune globulin or immunoglobulin. It is a substance obtained from the blood of human donors. Human normal immunoglobulin is marketed under a variety of brand names. It is available for intramuscular injection (IGIM), subcutaneous injection (SCIG) and, more commonly, intravenous injection (IVIG or IGIV).