| Message: | Specific rotation :accurately weighed, dissolved in water and diluted to 10mg per 1ml solution containing about determination (Appendix Ⅵ E) according to the law at 25 °C, the specific rotation of +190 °to +200 °
In white or almost white amorphous powder
odorless, tasteless. Soluble in water, insoluble in ethanol. Their solution was clear liquid colorless or slight opalescence.
Purpose: To expand blood volume drugs, have increased plasma colloid osmotic pressure, increased plasma volume and maintain blood pressure can prevent red blood cell and platelet aggregation, reduce blood viscosity, and thus the role of microcirculation. There are commonly used in clinical molecular dextran, primarily as plasma substitutes for hemorrhagic shock, traumatic shock and burn shock. Low, small molecule dextran, can improve microcirculation, prevent or eliminate red blood cell aggregation and thrombus formation within blood vessels, which have expanded blood volume, but the effect over the short dextran molecules; for microcirculation shock caused by a variety, disseminated intravascular coagulation, angina, acute myocardial infarction and other peripheral vascular disease
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