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Nuclear medicines are the the drugs containing radioactive material (radionuclide-emmitting ionizing radiations)for the diagnosis and treatmentof various diseases. Radiopharmaceuticals targetsthe organ or specific site and emitsthe gamma radiations which are captured by external gamma cameras. However, dose of radiations is kept low to avoid the side effects. These radiopharmaceuticals are administered inside the body by different routes of administration such as oral, inhalation or injection depending on the drug and targeted organ. Radiopharmaceuticals posses the ability to diagnose the blood flow of brain cells, heart pumping rate and working mechanism of kidney cells. Radiopharmaceuticals also enables the detection of Parkinson’s disease, Alzheimer’s, cancer location, tiny bone fractures, and functioning of transplanted organ.
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