Indication: (1) It is used to treat scurvy, and can also be used as an auxiliary treatment for various acute and chronic infectious diseases and purpura. (2) Treatment of chronic iron poisoning: Vitamin C promotes the chelation of iron by deferoxamine, accelerating the excretion of iron. (3) Treatment of idiopathic methemoglobinemia. (4) The following situations increase the need for vitamin C: ① Patients undergoing chronic hemodialysis, gastrointestinal diseases (long-term diarrhea, gastric or ileal resection), tuberculosis, cancer, ulcer disease, hyperthyroidism, fever, infection, trauma, burns, surgery, etc.; ② Patients receiving parenteral nutrition due to strict control or selection of diet, malnutrition, sudden weight loss, and during pregnancy and lactation; ③ When using barbiturates, tetracyclines, salicylates, or vitamin C as a urinary system acidifier.

Indication: 1. Used to prevent and treat bleeding before and after various surgeries. 2. Can also be used for bleeding caused by poor platelet function and increased vascular fragility, such as thrombocytopenic purpura and allergic purpura. 3. Can also be used for bleeding caused by other reasons, such as cerebral hemorrhage, gastrointestinal bleeding, urinary tract bleeding, fundus bleeding, gingival bleeding, nose bleeding and skin bleeding.

Indication: 1. Used to prevent and treat bleeding before and after various surgeries. 2. Can also be used for bleeding caused by poor platelet function and increased vascular fragility, such as thrombocytopenic purpura and allergic purpura. 3. Can also be used for bleeding caused by other reasons, such as cerebral hemorrhage, gastrointestinal bleeding, urinary tract bleeding, fundus bleeding, gingival bleeding, nose bleeding and skin bleeding.

Indication: 1. Used to prevent and treat bleeding before and after various surgeries. 2. Can also be used for bleeding caused by poor platelet function and increased vascular fragility, such as thrombocytopenic purpura and allergic purpura. 3. Can also be used for bleeding caused by other reasons, such as cerebral hemorrhage, gastrointestinal bleeding, urinary tract bleeding, fundus bleeding, gingival bleeding, nose bleeding and skin bleeding.

Indication: 1. Used to prevent and treat bleeding before and after various surgeries. 2. Can also be used for bleeding caused by poor platelet function and increased vascular fragility, such as thrombocytopenic purpura and allergic purpura. 3. Can also be used for bleeding caused by other reasons, such as cerebral hemorrhage, gastrointestinal bleeding, urinary tract bleeding, fundus bleeding, gingival bleeding, nose bleeding and skin bleeding.

Indication: It is used to treat endometriosis, and can also be used to treat fibrocystic breast disease, idiopathic thrombocytopenic purpura, hereditary angioedema, systemic lupus erythematosus, male gynecomastia, and precocious puberty.

Indication: Its strong immunosuppressive effect is used to treat various allergic inflammations and various autoimmune diseases. Since its main pharmacological action is the same as that of prednisone acetate (prednisone), its indications are basically the same as those of prednisone, mainly including: 1. Connective tissue diseases such as systemic lupus erythematosus; 2. Immune kidney diseases such as nephrotic syndrome; 3. Immune diseases such as idiopathic thrombocytopenic purpura; 4. Other diseases for which prednisone acetate is applicable.

Indication: Used for idiopathic thrombocytopenic purpura, allergic purpura, leukopenia and aplastic anemia.