| 摘要 |
PURPOSE:To provide an X-ray contrast medium containing barium sulfate and L-sorbose, and having improved composite functions. CONSTITUTION:The objective X-ray contrast medium contains 1 pt.wt. of barium sulfate and 0.01-1.0pt.wt. of L-sorbose. The tendency of the precipitation and aggregation of barium sulfate paticles in aqueous suspension because of its high density can be mitigated by the surfactant activity of L-sorbose, and accordingly, a contrast medium having high dispersion stability can be prepared. It is takable easily without necessitating the administration of a cathartic after the examination to prevent the constipation. It can be applied even to the patient of diabetes. It is storable in powdery form without causing the aggregation by moisture absorption and is free from contamination with microorganism even in fluid state.
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