Layered pharmaceutical composition suitable for oral use in the treatment of diseases where absorption takes place over a large part of the gastrointestinal tract. The composition comprising A) a solid inner layer comprising i) an active substance, and ii) one or more disintegrants/exploding agents, one of more effervescent agents or a mixture thereof. the solid inner layer being sandwiched between two outer layers B1) and B2), each outer layer comprising iii) a substantially water soluble and/or crystalline polymer or a mixture of substantially water soluble and/or crystalline polymers, the polymer being a polyglycol in the form of one of a) a homopolymer having a MW of at least about 100,000 daltons, and b) a copolymer having a MW of at least about 2,000 daltons, or a mixture thereof, and iv) an active substance, which is the same as in said solid inner layer A), and layer A being different from layer B, the layered composition being coated with a coating C) that has at least one opening exposing at least one surface of said outer layer, the coating being substantially insoluble in and impermeable to fluids and comprising a polymer, and the composition having a cylindrical form optionally with one or more tapered ends, wherein the ratio between the surface area of one end surface of the cylinder and the length of the cylinder is in a range of from 0.02 to 45 mm.
分层药物组合物适用于口服治疗吸收发生在胃肠道大部分的疾病。该组合物包括A)固体内层,包括i)活性物质,和ii)一个或多个分散剂/爆炸剂,一个或多个泡腾剂或其混合物。固体内层被夹在两个外层B1)和B2)之间,每个外层包括iii)一种或多种基本上
水溶性和/或结晶性聚合物,或基本上
水溶性和/或结晶性聚合物的混合物,聚合物是一种聚
乙二醇,形式为a)分子量至少约100,000道尔顿的均聚物,和b)分子量至少约2,000道尔顿的共聚物,或其混合物,以及iv)一种活性物质,该活性物质与所述固体内层A)中的活性物质相同,且层A与层B不同,分层组合物被涂覆有涂层C),该涂层具有至少一个开口,暴露至少一个所述外层的表面,该涂层在液体中基本上不溶且不透
水,并包括一种聚合物,该组合物具有圆柱形式,可选地具有一个或多个锥形端部,其中圆柱体的一端表面的表面积与圆柱体的长度之比在0.02至45毫米的范围内。