
It is used as a primary therapy for the treatment of malignant tumors.

It is also used in combination with surgery, chemotherapy and hormone therapy.

Strontium 89 and samarium 153 are radiopharmaceuticals commonly used for tumors that have spread to the bone (bone metastasis).

The thyroid gland absorbs nearly all of the iodine in the blood. Because of this, I 131 can be used to destroy the thyroid gland and thyroid cancer with limited effects on the rest of the body.

Radioactive phosphorus can be infused into the abdominal cavity or the linings around the lungs to treat malignant fluid accumulation in these cavities.

Radiolabeled monoclonal antibodies attach only to their specific target, bringing radiation directly to the site. It is also used to treat some non-Hodgkin lymphomas.