Why does radium-223 dichloride target cancer in bone?

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

The answer

Answer

It behaves similarly to calcium and binds to bone mineral where turnover is increased, including sites of osteoblastic metastases.

Xofigo 1100 kBq/mL solution for injectionemc · SmPC Current selected SmPC · Version 11

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radium-223 dichloride · Medicine question

iatroX medicinesPublished 21 August 2026Reviewed 21 August 2026

The answer

It behaves similarly to calcium and binds to bone mineral where turnover is increased, including sites of osteoblastic metastases.

Xofigo 1100 kBq/mL solution for injectionemc · SmPC Current selected SmPC · Version 11

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