[1][2] For thallium it may be used in addition to gastric lavage, activated charcoal, forced diuresis, and hemodialysis.

[5] Side effects may include constipation, low blood potassium, and stools that are dark.

[7] As of 2016[update], it is only approved for medical use in Germany, the United States, and Japan.

[3][clarification needed] Often it is given with mannitol or sorbitol to increase the speed it moves through the intestines.

[4] Prussian blue is also used to detect hemosiderin in urine to confirm a diagnosis of G6PD deficiency.