| 摘要 |
The present invention consists of an extended-release metoclopramide hydrochloride pharmaceutical composition, in 30 mg drug substance 5 tablets, for use in gastrointestinal disorders. The formulation is mainly composed of a hydrophilic polymer, a hydrophobic polymer, a hydrophilic component and metoclopramide hydrochloride. The hydrophilic polymer is swollen by hydration when contacting water, forming a gel coat which controls drug substance release. The water inside the matrix dissolves the drug substance and this is diffused outside through the gel coat. The hydrophobic polymer shows plastic deformation properties under compression, tending to surround the drug substance particles reducing the pore quantity and dimensions in the matrix structure, delaying as a consequence the drug substance release. The hydrophilic component is part of the gel coating structure providing support thereto. Drug substance is the metoclopramide hydrochloride or a pharmaceutically acceptable salt thereof. |
