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Tyropanoic acid

The molecule contains three heavy iodine atoms which obstruct X-rays in the same way as the calcium in bones, which results in a visible image [L1608]. … Tyropanoic acid is a radiocontrast agent used in cholecystography, the X-ray diagnosis of gallstones under the trade names include Bilopaque, Lumopaque, Tyropaque, and Bilopac.

Norethynodrel

As a contraceptive, it has usually been administered in combination with MESTRANOL. … A synthetic progestational hormone with actions and uses similar to those of PROGESTERONE. It has been used in the treatment of functional uterine bleeding and endometriosis.

Lapyrium

Lapyrium is a quaternary ammonium cation used as a surfactant, antistatic agent, and biocide in various cosmetic products [A19426]. It is commonly found formulated as lapyrium chloride.

Rose bengal I-131

Amino acids

Mixture of amino acids ; used for parenteral nutrition in infants.

Technetium Tc-99m sulfur colloid

This is possible as Technetium-99m decays by isomeric transition to technetium-99 through the release of a gamma ray. … Following injection or oral administration, single photon emission computer tomography (SPECT) imaging is performed using a gamma camera to detect technetium-99m decay.

Iocetamic acid

Iocetamic acid is a diagnostic aid (radiopaque medium)

Technetium Tc-99m etidronate

Iodide I-123

After incorporation, a gamma camera is used to detect the decay by electron capture to tellurium-123. … Iodide I-123 (as sodium Iodide I-123) is a radioactive isotope of iodine used in nuclear medicine for the diagnostic study of thyroid disease.

Indium In-111 pentetate

Indium In-111 pentetate disodium is a radioactive diagnostic indicated for use in radionuclide cisternography. … Decay of In-111 by electron capture allows for detection with a gamma camera for visualization of the brain and spinal column.