硫代硫酸鈉
Sodium Thiosulfate
Sodium Hyposulfite
別名: natrii thiosulfas · natrium thiosulfuricum · sodium hyposulphite · sodium thiosulphate
由 VetSheet 獸醫團隊審訂更新於 2026年4月5日本內容以實證獸醫文獻為本
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Halogen toxicoses
TABLE 128.6. Agent: Sodium thiosulfate. Dosage: 1% solution as continuous bath to effect52. Species/Comments: Halogen toxicoses.
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概覽
硫代硫酸鈉是一種多功能解毒劑,在獸醫學中主要用於氰化物和砷中毒。
- 氰化物中毒:通常單獨使用或與亞硝酸鈉合併使用。
- 重金屬中毒:用於砷或銅中毒(與鉬酸鈉合併使用),儘管其對砷的療效尚有爭議。
- 化療藥物外滲:用於減輕順鉑、卡鉑、放線菌素D和阿黴素外滲造成的組織損傷。
- 局部使用:偶爾用於真菌感染(體癬)。
作用機制
Sodium thiosulfate acts primarily as an exogenous sulfur donor.
- Cyanide Antidote: It provides sulfur to the enzyme rhodanese (thiosulfate cyanide sulfurtransferase). Rhodanese catalyzes the conversion of highly toxic cyanide → relatively non-toxic thiocyanate ion, which is then safely excreted in the urine.
- Heavy Metal Chelation: The sulfate moiety is presumed to react with and chelate metals like arsenic, facilitating their removal from the body.
- Topical Antifungal: Activity is likely due to the slow release of colloidal sulfur.
安全性與警告
禁忌症
- None absolute
不良反應
- Profuse diarrhea (with large oral doses)
注意事項
There are no absolute contraindications. Injectable forms should be given slowly IV. Safe use during pregnancy has not been established (FDA Category C); use when benefits outweigh potential risks.
藥物相互作用
Not compatible when mixed together
監測
- Clinical efficacy (resolution of toxicity signs)
- Hydration status (if diarrhea occurs from oral dosing)
藥物動力學
吸收
Relatively poorly absorbed from the GI tract. When substantial doses are given PO, it acts as a saline cathartic.
分佈
Distributed in the extracellular fluid.
排除
Rapidly excreted via the urine.
過量
The drug is relatively non-toxic. Large doses by mouth may cause profuse diarrhea. Injectable forms should be given slowly IV.
可用產品
劑型
- Injection
- Crystals/Powder
人用標示
- Sodium Thiosulfate for Injection: 10% (100 mg/mL, as pentahydrate) & 25% (250 mg/mL as pentahydrate) preservative-free in 10 mL & 50 mL single-use vials
各地核准狀態
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儲存與穩定性
Store at room temperature unless otherwise stated by the manufacturer. Crystals should be stored in tight containers. Not compatible mixed with cyanocobalamin.
飼主須知
硫代硫酸鈉通常在醫院環境中給予,用於中毒(如氰化物或砷)的緊急治療,或治療化療藥物外漏引起的組織損傷。
- 如果您的寵物口服此藥物,可能會引起嚴重腹瀉。
- 如果發生腹瀉,請確保您的寵物有充足的飲水,並密切遵循獸醫的指示。
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