A cross-linked polyallylamine or an acid addition salt thereof has both high phosphate adsorption capability and low degree of swelling, and a medical use thereof. The cross-linked polyallylamine or an acid addition salt thereof is obtained by copolymerization of allylammonium dihydrogen phosphate with an acid addition salt of N,N′-diallyl-1,3-diaminopropane in an amount of 5 to 25 mol % with respect to the amount of the allylammonium dihydrogen phosphate, the cross-linked polyallylamine or an acid addition salt thereof having a phosphate adsorption capacity of 2.7 to 5.0 mmol/g; and a degree of swelling of 2.0 to 5.0. The cross-linked polyallylamine or an acid addition salt thereof is useful as a therapeutic or prophylactic agent for hyperphosphatemia.
一种交联的聚合物聚合物或其酸加成盐具有高
磷酸盐吸附能力和低肿胀度,并且具有医学用途。该交联的聚合物聚合物或其酸加成盐是通过将
磷酸氢
铵丙烯酰胺与N,N'-
二烯丙基-1,3-二
氨基
丙烷的酸加成盐共聚合而得到的,其与
磷酸氢
铵丙烯酰胺的量比为5至25摩尔%,所述交联的聚合物聚合物或其酸加成盐具有2.7至5.0毫摩尔/克的
磷酸盐吸附能力和2.0至5.0的肿胀度。该交联的聚合物聚合物或其酸加成盐可用作治疗或预防高
磷血症的药物。