Learn about hydrocortisone injection , a steroid medication that reduces inflammation and treats various conditions. Find out how to use it, what precautions to take, and what side effects to watch out for. Hydrocortisone sodium succinate for injection , USP is an anti-inflammatory glucocorticoid that contains hydrocortisone sodium succinate, USP as the active ingredient. Hydrocortisone is used in the treatment of Severe allergic reactions, Allergic conditions, Cancer, Skin disorders, Eye disorders. View Hydrocortisone ’s uses, side-effects, drug interactions, expert advice and user FAQs only on 1mg .com. Hydrocortisone readily absorbed from the gastrointestinal tract; rapidly absorbed after IM injection (Na succinate, Na phosphate); slowly absorbed after intra-articular or soft tissue injection (acetate); partially absorbed after rectal administration; absorbed through the skin. The bioavailability is about 96 ± 20%.