Radioactive diagnostic imaging agent

A composition comprising a radioactive fluorine-labeled amino acid compound is provided, which can be prevented from radiolysis. Disclosed is a composition which comprises a solution containing a radioactive fluorine-labeled amino acid compound as an effective ingredient, in which the pH value of th...

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Bibliographic Details
Main Authors NAKAMURA SOICHI, KANEKO EMI, NAKAMURA DAISAKU, TOYAMA MASAHITO, TOKUNAGA SHINJI, SHINMURA TOSHIYUKI, HAYASHI AKIO
Format Patent
LanguageChinese
English
Published 21.10.2009
Subjects
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
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Summary:A composition comprising a radioactive fluorine-labeled amino acid compound is provided, which can be prevented from radiolysis. Disclosed is a composition which comprises a solution containing a radioactive fluorine-labeled amino acid compound as an effective ingredient, in which the pH value of the solution is kept at 2.0-5.9, more preferably 2.0-4.9 in order to inhibit radiolysis. Also, it is possible to further inhibit radiolysis by adding thereto a pharmaceutical additive capable of inhibiting radiolysis, such as a sugar, a sugar alcohol and a sugar lactone, whilst the pH is kept at 2.0-5.9.
Bibliography:Application Number: CN200780047363