Indication: Used for various types of hyperthyroidism, especially for: 1. Patients with mild disease and mild to moderate thyroid enlargement; 2. Adolescents, children and elderly patients; 3. Patients with recurrence after thyroid surgery who are not suitable for radioactive 131I treatment; 4. Pre-operative preparation; 5. As an adjuvant treatment for 131I radiotherapy.

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 receiving 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. 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 receiving 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. 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 receiving 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: It is used for various types of hyperthyroidism, especially for: ① patients with mild disease and mild to moderate thyroid enlargement; ② adolescents, children and elderly patients; ③ patients with recurrence after thyroid surgery who are not suitable for radioactive 131I treatment; ④ preoperative preparation; ⑤ as an adjuvant treatment for 131I radiotherapy.

Indication: It is used for various types of hyperthyroidism, especially for: ① patients with mild disease and mild to moderate thyroid enlargement; ② adolescents, children and elderly patients; ③ patients with recurrence after thyroid surgery who are not suitable for radioactive 131I treatment; ④ preoperative preparation; ⑤ as an adjuvant treatment for 131I radiotherapy.

Indication: It is used to prevent scurvy and can also be used as an auxiliary treatment for various acute and chronic infectious diseases and purpura.

Indication: It is used to prevent scurvy and can also be used as an auxiliary treatment for various acute and chronic infectious diseases and purpura.

Indication: It is used to prevent scurvy and can also be used as an auxiliary treatment for various acute and chronic infectious diseases and purpura.

Indication: It is used to prevent scurvy and can also be used as an auxiliary treatment for various acute and chronic infectious diseases and purpura.