A drug delivery system which comprises alginate tube that is prepared by coating a substrate with alginate gel. One or more therapeutic drugs may also be present in the alginate gel or in the cavity of the tube. The activity of the alginate drug delivery system is highly adjustable so that the release may be controlled as required.The rate at which the system releases the drug and the concentration of the drug released can be adjusted by varying the number of layers of the alginate tubes, the number of open or closed ends of the tubes, or the number of tube layers containing the drug.一種藥物服用系統,其包含經由以藻膠凝膠塗佈一受質而製備的藻膠管。一或更多的治療藥物亦可存在於藻膠凝膠或該管之腔中。該藻膠藥物服用系統的活性為高度可調整的,這樣可如所需地控制釋放。系統釋放藥物的速率以及所釋放藥物的濃度可經由改變藻膠管層的數目、管之開口或封閉端的數目或包含藥物之管層的數目而受調整。無
