Radioisotope therapy uses radioactive medicines to treat some types of cancer. It is also known as radionuclide therapy. You have the radioisotope as a drink, capsule or injection.

You may need to follow some safety procedures when you have treatment with radioisotopes. This is to help protect others from being exposed to the radiation.

There are different types of radioisotopes. Each type may treat a different type of cancer. You can read about these below.

What is radioisotope therapy?

Radioisotope therapy uses radioactive medicines to treat some types of cancer. It is also known as radionuclide therapy. There are different types of radioisotopes. The one you have depends on your type of cancer.

Peptide receptor radionuclide therapy (PRRT)

PRRT is a type of internal radiotherapy. It is also called radioligand therapy. It uses a radioactive substance attached to a man made form of the hormone somatostatin to kill NET cells.

Radioactive iodine MIBG (131 I-MIBG)

131 I-MIBG is a type of internal radiotherapy. It uses radioactive iodine attached to a substance called MIBG to kill the NET cells.

Radioactive iodine therapy

Radioactive iodine therapy is a type of treatment for thyroid cancer. Read about how it works and radiation safety. 

Radium 223 (Xofigo) for metastatic prostate cancer

Radium 223 is a type of internal radiotherapy. You might have it for cancer that began in the prostate and has spread to the bones.

Last reviewed: 
21 Jun 2024
Next review due: 
21 Jun 2027