Drug Information

Prussian Blue (ferric hexacyanoferrate (II)) for Treatment of Internal Contamination with 
Thallium or Radioactive Cesium

FDA approves a New Drug Application for Radiogardase, also known as Prussian blue, to treat people exposed to radiation contamination, due to harmful levels of cesium-137 or thallium.

• FDA approves the first New Drug Application for treatment of radiation contamination. FDA News  (Posted 10/2/2003)
• Label for Radiogardase (10/3/2003) 
• Questions and Answers on Prussian Blue (Updated 10/2/2003)
• Prussian Blue Draft Labeling (Updated 5/12/2003)
• FDA encourages manufacturers to submit marketing applications for Prussian blue. FDA Press Release (1/31/2003)
• Guidance for Industry on Prussian Blue for Treatment of Internal Contamination With Thallium or Radioactive Cesium; Availability. [TXT] [PDF] 
• Guidance for Industry: Prussian Blue Drug Products--Submitting a New Drug Application [Word] [PDF]

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FDA/Center for Drug Evaluation and Research
Last Updated:  October 3, 2003
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