Intravenous Immunoglobulin (IVIG) IVIG makes use of antibodies that can be used to treat recurrent pregnancy loss. Synonyms: Intravenous Immunoglobulin, IVIGRelated Articles: Complete guide to embryo implantation and implantation failureNK cells in IVFEvidence-based recommendations from ESHRE for 27 IVF add-onsMeta-analysis of commonly used IVF immunotherapies shows no benefitRIF patients benefit from single or combination immunotherapy during IVF