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Singapore Radiopharmaceuticals
01-15/16 The Gemini, Science Park II
41 Science park Road
Singapore 117610
Tel: (+65) 6594 0660
Fax: (+65) 6777 0663
| For Patients | ||
| What is radiopharmaceutical? | ||
| A radiopharmaceutical is a radioactive drug used for diagnosis or therapy in a tracer quantity with no pharmacological effect. It is composed of two parts; a radionuclide and a pharmaceutical. | ||
| How does it work? | ||
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| Are these safe? | ||
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Radiopharmaceuticals are radioactive agents. However, for diagnostic
purposes only small amounts are used and the radiation body receives
from them is very low and is considered safe.
The dosages of radiopharmaceuticals that are used to diagnose medical
problems will be different for different patients and depend on the type
of test. The amount of radioactivity of a radiopharmaceutical is
expressed in units called becquerels (Bq) or curies (Ci).
Radiopharmaceutical dosages given may be as small as 0.185
megabecquerels (5 microcuries) or as high as 1295 megabecquerels (35
millicuries). The radiation received from these dosages may be about the
same as, or even less than, the radiation received from an x-ray study
of the same organ.
When larger amounts of these agents are given to treat disease, there may be different effects on the body. Some radiopharmaceuticals are used in larger amounts to treat certain kinds of cancer and other diseases. In those cases, the radioactive agent is taken up in the cancerous area and destroys the affected tissue. Radiopharmaceuticals are to be given only by or under the direct supervision of a doctor with specialized training in nuclear medicine. |
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