Technetium Tc 99m Oxidronate Injection

This article is compiled based on the United States Pharmacopeia (USP) – 2025 Edition

Issued and maintained by the United States Pharmacopeial Convention (USP)

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Technetium Tc 99m Oxidronate Injection is a sterile, clear, colorless solution, suitable for intravenous administration, of radioactive technetium (99mTc) in the form of a chelate of oxidronate sodium. It contains not less than 90.0 percent and not more than 110.0 percent of the labeled amount of 99mTc as chelate expressed in megabecquerels (microcuries or millicuries) per mL at the time indicated in the labeling. It may contain buffers, preservatives, reducing agents, and stabilizers. Other chemical forms of radioactivity do not exceed 10.0 percent of the total radioactivity.

1 Packaging and storage

Preserve in single-dose or multiple-dose containers.

2 Labeling

Label it to include the following, in addition to the information specified for Labeling 〈7〉, Labels and Labeling for Injectable Products: the time and date of calibration; the amount of 99mTc as labeled oxidronate expressed as total megabecquerels (microcuries or millicuries) and concentration as megabecquerels (microcuries or millicuries) per mL at the time of calibration; the expiration date and time; and the statement “Caution—Radioactive Material.” The labeling indicates that in making dosage calculations, correction is to be made for radioactive decay, and also indicates that the radioactive half-life of 99mTc is 6.0 hours.

pH 〈791〉: between 2.5 and 7.0.

3 Other requirements

It meets the requirements for Bacterial endotoxins, Radiochemical purity, Biological distribution, Other requirements, and Assay for radioactivity under Technetium Tc 99m Pyrophosphate Injection.