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聚合物基质药物在临床广泛使用已5年余,其效佳。可供载运药物的基质有:甲基纤维素、羧甲基纤维素钠、羟丙甲基纤维素及聚乙烯醇。可供选用的药物很多,包括所有与聚合物起化学反应的水溶性药物,常用者如抗生素、激素及酶制剂。聚合物价廉、易得、制备简单。即在无菌条件下,先称量聚合物之一(如羧甲基纤维素钠2g,甲基纤维素2g,羟丙甲基纤维素6g)将其浸入40ml加热至70～90℃的蒸馏水内,待其膨胀后搅拌至完全溶解,冷
Polymer matrix drugs have been widely used in clinical more than 5 years, its effectiveness is good. The substrates available for drug delivery are: methylcellulose, sodium carboxymethylcellulose, hydroxypropylmethylcellulose and polyvinyl alcohol. A wide range of drugs are available, including all water-soluble drugs that chemically react with polymers, such as antibiotics, hormones and enzymes. Polymer inexpensive, easy to get, easy to prepare. That is, under aseptic conditions, one of the polymers (such as 2 g of sodium carboxymethyl cellulose, 2 g of methyl cellulose and 6 g of hydroxypropylmethyl cellulose) was first weighed and immersed in 40 ml of distilled water heated to 70 to 90 ° C Within, until its expansion after mixing until completely dissolved, cold