Toxicological properties of Technekitty injection (Tc-99m) in diagnosing feline hyperthyroidism
10.12729/jbtr.2024.25.4.201
- Author:
Jae Cheong LIM
1
;
So-Young LEE
;
Eun Ha CHO
;
Yu Mi JUNG
;
Ki Hwan PARK
;
Young Uk PARK
;
Sung Soo NAM
;
Tae Hoon LEE
;
Jae Won LEE
;
Yiseul CHOI
;
Inki LEE
;
Yeon CHAE
;
Byeong-Teck KANG
Author Information
1. Radioisotope Research Division, Korea Atomic Energy Research Institute, Daejeon 34057, Korea
- Publication Type:Original Article
- From:
Journal of Biomedical and Translational Research
2024;25(4):201-210
- CountryRepublic of Korea
- Language:English
-
Abstract:
Following the previous study, which investigated the pharmacological properties of the Technekitty injection (Tc-99m), the toxicity of a single intravenous administration of the Technekittyinjection (Tc-99m) and the side effects that may occur at the diagnostic dose were confirmed.The Technekitty injection (Tc-99m) was administered intravenously once at a dose of 0, 0.67, 2.0, and 6.0 mCi/kg to 5 male and female rats per group. Mortality, general symptom obser-vation, and weight measurement were performed for 2 weeks, followed by observation of autopsy findings. There were no deaths, and no statistically significant weight change was observed. No abnormal systemic signs related to the Technekitty injection (Tc-99m) were observed. These results confirmed that Technekitty injection (Tc-99m) can be safely admin-istered intravenously at doses up to 6.0 mCi/kg. Additionally, technetium-99m at an average dose of 2 mCi (74 MBq) has been verified as a diagnostic dose without adverse effects, al-lowing the Technekitty injection (Tc-99m) to be used safely without side effects at this dosage.This study demonstrates that the Technekitty injection (Tc-99m) has a wide safety margin, supporting its potential for clinical application. Moreover, these findings align with the nonclin-ical safety standards for radiopharmaceuticals, reinforcing its utility in veterinary medicine.The Technekitty injection (Tc-99m) is expected to be applicable for clinical diagnosis as a vet-erinary drug in Korea.
