Ferric Hexacyanoferrate(II): uses, dosing, side effects & brands
Ferric Hexacyanoferrate(II) is a medicine sold in the U.S. under one brand. Below: what the FDA label says, every product that contains it, what the pills look like, and its recall record.
Key facts
- Available as
- Capsule
- Sold as
- Radiogardase (Prussian Blue)
- Prescription?
- Prescription only
- Generic available?
- Not in our catalog
How ferric hexacyanoferrate(ii) is dosed
From the FDA label for Radiogardase (Prussian Blue) (application NDA021626). Other ferric hexacyanoferrate(ii) products — different forms, different strengths — are dosed differently. Follow the label for the one you were prescribed.
Adults and Adolescents: 3 grams orally three times a day ( 2.3 ) Pediatrics (2 – 12 years): 1 gram orally three times a day ( 2.3 ) Administer as soon as possible after internal contamination with cesium or thallium is suspected ( 2.1 ) 2.1 Important Administration Instructions Obtain quantitative baseline of the internalized contamination by radioactive cesium (137Cs) and/or thallium by appropriate whole-body counting and/or by bioassay (e.g., biodosimetry), or feces/urine samples, whenever possible prior to Radiogardase treatment. Initiate treatment with Radiogardase as soon as possible after contamination is suspected. Even when delayed, treatment with Radiogardase is effective and should not be withheld. Take Radiogardase capsules with food to stimulate excretion of cesium or thallium. In patients who cannot tolerate swallowing large numbers of capsules, open the capsules and mix with bland food or liquids. 2.2 Decontamination Procedures for Radioactive Cesium or Thallium Contamination Prior to initiating treatment with Radiogardase, follow radioactive decontamination safety procedures including: Use appropriate radiation protective attire and closely monitor personnel and treatment area for radiation levels using radiation detection, indication, and computation devices (RADIAC) or thermal luminescent devices (TLD). Control spread of radiation contamination through the…
Ferric Hexacyanoferrate(II) side effects
Constipation was reported in 10 (24%) of 42 patients treated with Radiogardase. Severity of constipation was mild in 7 patients and moderate in 3 patients [see Warnings and Precautions (5.2) ]. Most common adverse reaction (incidence >24%) was constipation ( 6 ) To report SUSPECTED ADVERSE REACTIONS, contact [email protected], Fax +49 30 817 4049 or FDA at 1-800-FDA-1088 or www.fda.gov/medwatch.
Who shouldn’t take ferric hexacyanoferrate(ii)
None None ( 4 )
Ferric Hexacyanoferrate(II) drug interactions
Based on animal data, co-administration of Radiogardase with other decorporation agents does not affect the efficacy of Radiogardase for treatment of internal contamination with radioactive cesium and/or radioactive or non-radioactive thallium.
Every ferric hexacyanoferrate(ii) product we track (1)
Same active ingredient — different manufacturer, form, price and FDA recall record. That last one is what our independent score measures.
Only one: Radiogardase (Prussian Blue).
Related calculators
Frequently asked questions
What is ferric hexacyanoferrate(ii)?
Radiogardase (Prussian Blue) (Ferric Hexacyanoferrate(II)) is a medication supplied as a capsule.
Can you take ferric hexacyanoferrate(ii) with other medicines?
It depends on the medicine. We check it against the FDA labels rather than guessing: our interaction checker searches each drug's own label for the other and quotes what it says, naming the section it came from. Run ferric hexacyanoferrate(ii) against whatever else you take — and remember that a label not naming a drug is not the same as that combination being safe.
What forms does ferric hexacyanoferrate(ii) come in?
Across the brands we track, ferric hexacyanoferrate(ii) is currently marketed as capsule, per the FDA's National Drug Code Directory. Each form is dosed differently — follow the label for the exact product you were prescribed.
Is there a generic ferric hexacyanoferrate(ii)?
We do not currently list a generic-labelled ferric hexacyanoferrate(ii) product. That does not always mean none exists — it means none appears under a generic name in the FDA data we track. Ask your pharmacist.
Cite this page
- APA
- pharmaranks. (2026, July 24). Ferric Hexacyanoferrate(II): uses, dosing, side effects & brands. https://pharmaranks.com/drugs/ferric-hexacyanoferrate-ii
- MLA
- “Ferric Hexacyanoferrate(II): uses, dosing, side effects & brands.” pharmaranks, 24 July 2026, https://pharmaranks.com/drugs/ferric-hexacyanoferrate-ii.
We summarise public FDA and NIH sources — for a clinical claim, cite the primary source we link to as well.
Sources: FDA openFDA drug label, National Drug Code Directory, and Enforcement (recall) database. This page reproduces public FDA data and is not medical advice. Dosing is set by your prescriber.
Read the full FDA label for ferric hexacyanoferrate(ii) on DailyMed (NIH) ↗.