This invention, the vegetating disease, especially disposal of the cancer and/or it regards dividing into two equal parts child quantitative hukoidan which can use for prevention. In detail, dividing into two equal parts child quantitative hukoidan, the production method, the medicine composition, and the vegetating disease which include that, especially disposal of the cancer and/or it regards the use of dividing into two equal parts child quantitative hukoidan in producing the medicine for prevention. Dividing into two equal parts child quantitative hukoidan of this invention, the average molecular weight approximately 6,000 - approximately 2,000,000, the average molecular weight approximately 40,000 - approximately 330,000, the average molecular weight approximately 40,000 - approximately 244,000, furthermore the average molecular weight approximately 80,000 - approximately has 200,000 desirably more desirably desirably.本発明は、増殖性疾患、とりわけがんの処置および/または予防に用いることができる中分子量フコイダンに関する。詳細には、中分子量フコイダン、その製造方法、それを含む医薬組成物、および増殖性疾患、とりわけがんの処置および/または予防用医薬の製造における中分子量フコイダンの使用に関する。本発明の中分子量フコイダンは、平均分子量約6,000~約2,000,000、好ましくは平均分子量約40,000~約330,000、より好ましくは平均分子量約40,000~約244,000、さらに好ましくは平均分子量約80,000~約200,000を有する。
