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62results about How to "Reduce gastrointestinal side effects" patented technology

Azithromycin dosage forms with reduced side effects

An oral dosage form comprising azithromycin and an effective amount of an alkalizing agent. Preferably, said oral dosage form comprises an effective amount of an alkalizing agent and an azithromycin multiparticulate wherein said multiparticulate comprises azithromycin, a mixture of glyceryl monobehenate, glyceryl dibehenate and glyceryl tribehenate, and a poloxamer. Typically, the oral dosage form includes any suitable oral dosing means such as a powder for oral suspension, a unit dose packet or sachet, a tablet or a capsule. Additionally disclosed is an oral suspension comprising azithromycin, an effective amount of an alkalizing agent and a vehicle. Preferably, the azithromycin is in multiparticulate form wherein said multiparticulate comprises azithromycin, a mixture of glyceryl monobehenate, glyceryl dibehenate and glyceryl tribehenate, and a poloxamer. Also disclosed is a method for reducing gastrointestinal side effects, associated with administering azithromycin to a mammal, comprising contiguously administering azithromycin and an effective amount of alkalizing agent to said mammal wherein the frequency of gastrointestinal side effects is lower than that experienced by administering an equal dose of azithromycin without said alkalizing agent. Further disclosed is a method of treating a bacterial or protozoal infection in a mammal in need thereof comprising contiguously administering to said mammal a single dose of an oral dosage form wherein said oral dosage form comprises azithromycin and an effective amount of an alkalizing agent. Additionally disclosed are azithromycin multiparticulates comprising azithromycin, a surfactant; and a pharmaceutically acceptable carrier.
Owner:PFIZER INC

Venlafaxine hydrochloride controlled-release pellet and preparation method thereof

ActiveCN102935071AReduce viscosityOvercome coating electrostatic problemsOrganic active ingredientsNervous disorderSpray coatingSolvent
The invention provides a venlafaxine hydrochloride controlled-release pellet and a preparation method thereof. The venlafaxine hydrochloride controlled-release pellet comprises a blank pellet core, a venlafaxine hydrochloride-containing layer and a controlled-release film, wherein the venlafaxine hydrochloride-containing layer comprises active components including venlafaxine hydrochloride and talcum powder which are in a weight ratio of 12:1-8:1, and the weight ratio of the venlafaxine hydrochloride to the blank pellet core is 4:10-8:10. The venlafaxine hydrochloride controlled-release pellet is prepared by adopting a fluidized bed bottom-spraying venlafaxine hydrochloride applying mode; by using 75 percent alcohol as a solvent, the viscosity of the venlafaxine hydrochloride in a water solution is remarkably lowered, the venlafaxine hydrochloride applying speed is increased; and the prepared venlafaxine hydrochloride containing pellet adopts a bottom-spraying coating process, thus the problem of static electricity generated because of the adoption of the pure organic solvent is overcome; the application process and the wrapping process can be continuously operated in the same device, thus the production efficiency is increased and the production cost is lowered; and no toxic organic solvent is adopted in the whole process, thus the venlafaxine hydrochloride controlled-release pellet is environmental-friendly and is good in stability, and almost no broken pellets or dust is produced.
Owner:QINGDAO HUANGHAI PHARM CO LTD
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