Optimization on formulation of microporosity osmotic pump controlled release tablet of solid dispersion for total flavonoids from Desmodium styracifolium by central composite design-response surface methodology Study on preparation and release mechanism of  effervescent osmotic pump tablet of compound Danshen Review of effervescent technique in pharmaceutics research Application of osmotic pump technology in Chinese materia medica preparation Advance in studies on synchronized and sustained-release preparations of multi-component of Chinese materia medica for oral Preparation of osmotic pump controlled release tablets of total flavones in Lysimachia clethr oides Study on methodology of determination of Yizhi osmotic pump tablets active ingredient in Beagle dog plasma by LC-MS/MS Formulation optimization of Kyllinga brevifolia total flavonols solid dispersion controlled porosity osmotic pump tablets Preparation of pueratin effervescent osmotic pump controlled release tablets and their in vitro evaluation Preparation of osmotic pump tablets ginsenoside Rg3 of solid dispersion and its release characteristic in vitro Preparation of puerarin self-microemulsifying osmotic pump controlled-release capsule Advances in studies on mathematical models of sustained and controlled release systems for oral preparations Optimization of bi-layer osmotic pump controlled release tablets of total flavonoids from Ginkgo Folium by central composite design-response surface methodology