Objective To comprehensively compare the quality and filtration efficiency of medicinal maltose between two domestic manufacturers(B,C)and one foreign manufacturer(A),compare their product quality as an excipient for in-travenous immunoglobulin(IVIG),so as to determine the feasibility and substitutability of maltose as an excipient for IVIG from different manufacturers.Methods Quality inspection and comparison of maltose from different manufacturers,small-scale filtration tests,and product quality comparision of IVIG(pH4)were conducted.Results The comparis on results showed that there was no significant difference in the quality of medicinal maltose between manufacturer B and A,and there was no significant difference in the quality of IVIG(pH4)produced.The quality of manufacturer C did not meet the require-ments.Conclusion There is no significant difference in the quality of medicinal maltose produced by manufacturer B and A,which can be used for the production of IVIG(pH4).
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