Provided are combinations, compositions and kits containing a immune globulin (IG) composition and a soluble hyaluronidase composition formulated for subcutaneous administration. Such products can be used in methods of treating IG-treatable diseases or conditions. Also provided are methods for subcutaneous administration of immune globulin whereby the dosing regimen is substantially the same as for intravenous administration of the same dosage for treatment of the same IG-treatable disease or condition.