Intravenous Immune Globulin in Dermatomyositis Few drugs have been studied well in the treatment of dermatomyositis (DM) and only recently has intravenous immune globulin (IVIG) been granted FDA approval for the treatment of DM, based on this trial. https://t.co/8QeEzX8Eqm https://t.co/hUVLUQJjN6