Xenon
Prescription品牌名称： Xenon, Xe-133
About This Medication
DESCRIPTION Xenon Xe 133 Gas is for diagnostic inhalation use only. It is supplied in vials containing either 370 or 740 megabecquerels (10 or 20 millicuries) of Xenon Xe 133 Gas in 2 milliliters of carrier xenon and atmospheric air. Xenon Xe 133 Gas is chemically and physiologically similar to elemental xenon, a non-radioactive gas which is physiologically inert except for anesthetic properties at high doses. Xenon Xe 133 is produced by fission of Uranium U 235. At the time of calibration, it contains no more than 0.3% Xenon Xe 133m, no more than 1.5% Xenon Xe 131m, no more than 0.06% Krypton Kr 85 and no more than 0.01% Iodine I 131, with no less than 99.9% total radioactivity as radioxenon. Table 1 shows the effect of time on radionuclidic composition. Table 1. Radionuclidic Composition Percent of Total Radioactivity Days % Xe-133 % Xe-133m % Xe-131m % Kr-85 % I-131 -5 >98.3 <0.6 <1.0 <0.03 <0.01 0 Calibration Date >98.1 <0.3 <1.5 <0.06 <0.01 7 >97.2 <0.08 <2.5 <0.15 <0.02 14 Expiration Date >95.7 <0.02 <4.1 <0.37 <0.02
活性成分
| 成分 | 规格 |
|---|---|
| Xenon Xe-133 | - |
适应证与用法
用法用量
Side Effects Overview
警告与注意事项
WARNINGS Xenon Xe 133 Gas delivery systems, i.e., respirators or spirometers, and associated tubing assemblies must be leakproof to avoid loss of radioactivity into the laboratory environs not specifically protected by exhaust systems. Xenon Xe 133 Gas adheres to some plastics and rubber and should not be allowed to stand in tubing or respirator containers. Loss of radioactivity due to such adherence may render the study nondiagnostic.
禁忌证
CONTRAINDICATIONS None known.
Frequently Asked Questions
INDICATIONS AND USAGE Xenon Xe 133 Gas has been shown to be valuable for diagnostic inhalation studies for the evaluation of pulmonary function, for imaging the lungs and may also be applied to assessment of cerebral blood flow.
DOSAGE AND ADMINISTRATION Xenon Xe 133 Gas is administered by inhalation from a closed respirator system or spirometer. The final patient dose should be measured by a suitable radioactivity calibration system immediately prior to administration. The recommended activity range employed for inhalation by the average patient (70 kg) is: Pulmonary function including imaging: 74 to 1110 megabecquerels (2 to 30 millicuries) Cerebral blood flow: 370 to 1110 megabecquerels (10 to 30 millicuries) This may be administered as a bolus into …
WARNINGS Xenon Xe 133 Gas delivery systems, i.e., respirators or spirometers, and associated tubing assemblies must be leakproof to avoid loss of radioactivity into the laboratory environs not specifically protected by exhaust systems. Xenon Xe 133 Gas adheres to some plastics and rubber and should not be allowed to stand in tubing or respirator containers. Loss of radioactivity due to such adherence may render the study nondiagnostic.
CONTRAINDICATIONS None known.
Xenon is a prescription medication. You will need a valid prescription from a licensed healthcare provider.
Similar Inhaler Products
Browse all Inhaler products →References & Data Sources
- • DailyMed — Xenon drug label (National Library of Medicine)
- • openFDA — Xenon label data (U.S. Food & Drug Administration)
- • NDC Directory — Xenon (FDA National Drug Code)
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数据来源： DailyMed (NLM), openFDA, MFDS