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Phosphorus-32 Therapy Information


Polycythaemia is a condition where there are too many red blood cells in the blood. One treatment option is an injection of 32Phosphorous (32P) which inhibits the bone marrow’s production of red blood cells.

32P Procedure

The procedure is very straightforward and involves a small injection into a suitable vein, usually in the arm or hand. You will be able to go home straight away if you are an out-patient. The treatment takes effect over a few weeks and the effect of one injection is long lasting, usually up to a year. Low white blood cell and platelet counts tend to be observed at 4-6 weeks post-therapy, but the counts usually return to normal after four months.

Patient Preparation

There is no special preparation for this appointment

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Last updated - 16 August 2019
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Queen Alexandra Hospital
Cosham, Portsmouth
Tel: 023 9228 6000

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