Methods: the first derivation spectrophotometry method was used to determine the content and content uniformity of methylphenidatehydrochloride tablets with the solvent of water.
方法：以水为溶媒用一阶导数光谱法测定盐酸哌甲酯片的含量及含量均匀度。
2
The invention relates to the technical field of medicine, which discloses an anti-ADHD drug methylphenidatehydrochloride gastric floating sustained-release pellet and a preparation method thereof.