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Pharmaceutical drug which emits radiation, used as a diagnostic or therapeutic agent
A carbon-11 labelled radiopharmaceuticalRadiopharmaceuticals, or medicinal radiocompounds, are a group of pharmaceutical drugs containing radioactive isotopes. Radiopharmaceuticals can be used as diagnostic and therapeutic agents. Radiopharmaceuticals emit radiation themselves, which is different from contrast media which absorb or alter external electromagnetism or ultrasound. Radiopharmacology is the branch of pharmacology that specializes in these agents.
The main group of these compounds are the radiotracers used to diagnose dysfunction in body tissues. While not all medical isotopes are radioactive, radiopharmaceuticals are the oldest and remain the most common of such drugs.
As with other pharmaceutical drugs, there is standardization of the drug nomenclature for radiopharmaceuticals, although various standards coexist. The International Nonproprietary Names (INNs), United States Pharmacopeia (USP) names, and IUPAC names for these agents are usually similar other than trivial style differences.[1] The details are explained at Radiopharmacology § Drug nomenclature for radiopharmaceuticals.
Specific radiopharmaceuticals[edit]A list of nuclear medicine radiopharmaceuticals follows. Some radioisotopes are used in ionic or inert form without attachment to a pharmaceutical; these are also included. There is a section for each radioisotope with a table of radiopharmaceuticals using that radioisotope. The sections are ordered alphabetically by the English name of the radioisotope. Sections for the same element are then ordered by atomic mass number.
47Ca is a beta and gamma emitter.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Ca-47-Ca2+ Bone metabolism IV In-vitro Non-imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging C11-L-methyl-methionine Brain tumour imagingParathyroid imaging
IV In-vivo Imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging C14-Glycocholic acid Breath test for small intestine bacterial overgrowth Oral In-vitro Non-imaging C14-PABA (para-amino benzoic acid) Pancreatic studies Oral In-vitro Non-imaging C14-Urea Breath test to detect Helicobacter pylori Oral In-vitro Non-imaging C14-d-xylose Breath test for small intestine bacterial overgrowth Oral In-vitro Non-imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Cr51-[heart scan/blood volume Red cell volume heart scan; sites of sequestration; gastrointestinal blood loss IV In-vitro Non-imaging Cr51-Cr3+ Gastrointestinal protein loss IV In-vitro Non-imaging Cr51-EDTA (ethylenediaminetetraacetic acid) Glomerular filtration rate measurement IV In-vitro Non-imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Co57-Cyanocobalamin (vitamin B12) Gastrointestinal absorption Oral In-vitro Non-imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Co58-Cyanocobalamin (vitamin B12) Gastrointestinal absorption Oral In-vitro Non-imaging Name Treatment of Route of administration Er169-Colloid Arthritic conditions Intra-articular18F is a positron emitter with a half-life of 109 minutes. It is produced in medical cyclotrons, usually from oxygen-18, and then chemically attached to a pharmaceutical formulation.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging F18-FDG (Fluorodeoxyglucose) Tumor imagingMyocardial imaging
IV In-vivo Imaging F18-Sodium Fluoride Bone imaging IV In-vivo Imaging F18-Fluorocholine Prostate tumor imaging IV In-vivo Imaging F18-Desmethoxyfallypride Dopamine receptor imaging IV In-vivo Imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Ga67-Ga3+ Tumor imaging IV In-vivo Imaging Ga67-Ga3+ Infection/inflammation imaging IV In-vivo Imaging68Ga is a positron emitter, with a 68-minute half-life, produced by elution from germanium-68 in a gallium-68 generator or by proton irradiation of zinc-68.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Ga68-Dotatoc or Dotatate Neuroendocrine tumor imaging IV In-vivo Imaging Ga68-PSMA Prostate cancer imaging IV In-vivo Imaging3H or tritium is a beta emitter.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging H3-water Total body water Oral or IV In-vitro Non-imagingIodine-123 (I-123) is a gamma emitter. It is used only diagnostically, as its radiation is penetrating and short-lived.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging I123-Iodide Thyroid uptake Oral or IV In-vivo Non-imaging I123-Iodide Thyroid imagingThyroid metastases imaging
Oral or IV In-vivo Imaging I123-o-Iodohippurate Renal imaging IV In-vivo Imaging I123-MIBG (m-iodobenzylguanidine) Neuroectodermal tumour imaging IV In-vivo Imaging I123-FP-CIT SPECT imaging of Parkinson's Disease IV In-vivo Imaging125I is a gamma emitter with a long half-life of 59.4 days (the longest of all radioiodines used in medicine). Iodine-123 is preferred for imaging, so I-125 is used diagnostically only when the test requires a longer period to prepare the radiopharmaceutical and trace it, such as a fibrinogen scan to diagnose clotting. I-125's gamma radiation is of medium penetration, making it more useful as a therapeutic isotope for brachytherapy implant of radioisotope capsules for local treatment of cancers.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging I125-fibrinogen Clot imaging IV In-vivo Imaging131I is a beta and gamma emitter. It is used both to destroy thyroid and thyroid cancer tissues (via beta radiation, which is short-range), and also other neuroendocrine tissues when used in MIBG. It can also be seen by a gamma camera, and can serve as a diagnostic imaging tracer, when treatment is also being attempted at the same time. However iodine-123 is usually preferred when only imaging is desired.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging I131-Iodide Thyroid uptake Oral In-vivo Non-imaging I131-Iodide Thyroid metastases imaging Oral or IV In-vivo Imaging I131-MIBG (m-iodobenzylguanidine) Neuroectodermal tumor imaging IV In-vivo Imaging Name Treatment of Route of administration I131-Iodide Thyrotoxicosis IV or Oral I131-Iodide Non-toxic goiter IV or Oral I131-Iodide Thyroid carcinoma IV or Oral I131-MIBG (m-iodobenzylguanidine) Malignant disease IV59Fe is a beta and gamma emitter.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Fe59-Fe2+ or Fe3+ Iron metabolism IV In-vitro Non-imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging the radioactive substance Kr81m-Gas Lung ventilation imaging Inhalation In-vivo Imaging Kr-81m-Aqueous solution Lung perfusion imaging IV In-vivo Imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging N13-Ammonia Myocardial blood flow imaging IV In-vivo Imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging O15-Water Cerebral blood flow imagingMyocardial blood flow imaging
IV bolus In-vivo Imaging Name Treatment of Route of administration P32-Phosphate Polycythemia and related disorders IV or Oral82Rb is a positron and gamma emitter.
Name Investigation of Route of administration Rb-82 chloride Myocardial Imaging IV153Sm is a beta and gamma emitter.
Name Treatment of Route of administration Sm153-EDTMP (Ethylenediaminotetramethylenephosphoric acid) Bone metastases IV Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Se75-Selenorcholesterol Adrenal gland imaging IV In-vivo Imaging Se75-SeHCAT (23-Seleno-25-homo-tauro-cholate) Bile salt absorption Oral In-vivo Imaging22Na is a positron and gamma emitter.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Na22-Na+ Electrolyte studies Oral or IV In-vitro Non-imaging24Na is a beta and gamma emitter.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Na24-Na+ Electrolyte studies Oral or IV In-vitro Non-imaging Name Treatment of Route of administration Sr89-Chloride Bone metastases IVTechnetium-99m is a gamma emitter. It is obtained on-site at the imaging center as the soluble pertechnetate which is eluted from a technetium-99m generator, and then either used directly as this soluble salt, or else used to synthesize a number of technetium-99m-based radiopharmaceuticals.
Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Tc99m-pertechnetate Thyroid uptake and thyroid imagingStomach and salivary gland imaging
Meckel's diverticulum imaging
Brain imaging
Micturating cystogram
First pass blood flow imaging
First pass peripheral vascular imaging
GI Bleeding
IV In-vivo Imaging Tc99m-Colloid Lymph node imaging Interstitial In-vivo Imaging Tc99m-Colloid Esophageal transit and reflux imagingGastric emptying imaging
Oral In-vivo Imaging Tc99m-Colloid Lacrimal imaging Eye drops In-vivo Imaging Tc99m-HIDA (Hepatic iminodiacetic acid) Functional biliary system imaging IV In-vivo Imaging Tc99m-Denatured (heat damaged) red blood cells Red cell volumeSpleen imaging
IV In-vitro Non-imaging Tc99m-Whole red blood cells GI bleedingCardiac blood pool imaging
Peripheral vascular imaging
First pass blood flow imaging
Non-specific tumor imaging
Thyroid tumor imaging
Breast imaging
Myocardial imaging
Myocardial imaging
IV In-vivo Imaging Tc99m-ECD (ethyl cysteinate dimer) Brain imaging----- IV In-vivo Imaging Name Investigation Route of administration In-vitro / in-vivo Imaging / non-imaging Tl201-Tl+ Non-specific tumor imagingThyroid tumor imaging
Myocardial imaging
Parathyroid imaging
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