Hy-Cortisone Hy-Cortisone (Hydrocortisone sodium succinate for injection USP) For I.V & I.M use. It is used to treat symptoms of low corticosteroid levels (a lack of certain substances that are usually produced by the body and are necessary for normal body functioning). It is also used to treat severe allergies. Hydrocortisone injections are used to… Continue reading Hy-Cortisone