Chemolytic EDTA-citric acid composition for dissolution of calculi
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United States of America Patent
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Jul 4, 1989
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N/A
app pub date -
Nov 10, 1987
filing date -
Nov 10, 1987
priority date (Note) -
Expired
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Abstract
An improved composition for dissolution of renal calculi is disclosed. The composition includes citric acid, preferably at about 10 to about 15% by weight, and an effective amount of a pharmacologically acceptable chelating agent such as EDTA in a sterile aqueous solution having a pH between about 3 and about 4.5. In vivo irrigation with the improved formulation, optionally in combination with incident ultrasound therapy promotes rapid stone dissolution with minimal complications for the patient.
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