| abstract |
The present invention contains a drug, a polyethylene oxide having a molecular weight of 2,000,000 or more, and a formulation of a polyethylene oxide (a material having suitable plasticity and binding strength), and a formulation in which at least the specific formulation is uniformly dispersed with respect to the polyethylene oxide, the formulation It relates to a pharmaceutical composition for controlled release control comprising a and a method for producing a pharmaceutical composition for controlled release comprising the formulation. By using the powder of the polyethylene oxide which has the powder characteristic suitable for the tableting which the specific polyethylene oxide sizing agent of the present invention is uniformly disperse | distributed, the pharmaceutical composition for release control with favorable content uniformity can be provided. |