PVP muaj keeb kwm ntev ua cov thickener hauv cov kua hauv qhov ncauj thiab muaj ntau yam kev siv. Piv txwv li, nws tuaj yeem siv los ua ib qho zoo thickening stabilizer nyob rau hauv emulsions thiab ncua kev kawm ntawv, PVPK-90, thiab cov polymer yog Adsorbed rau saum npoo ntawm ib tug colloidal ion los tsim ib tug nyias txheej ntawm molecules los tiv thaiv coalescence.
Nyob rau hauv txoj kev tshawb no ntawm transdermal xa system ntawm dihydroetorphine los ntawm cov kws txawj, 50% ntawm PVP tau ntxiv thaum lub sij hawm npaj ntawm lub tsev qiv ntawv tshuaj. Cov txiaj ntsig tau ua pov thawj tias qhov piv ntawm PVP rau PVA thiab glycerin yog qhov tseem ceeb cuam tshuam rau kev ua haujlwm ntawm lub tsev qiv ntawv tshuaj. Ntxiv PVP tshuaj storehouse yog ib qho yooj yim kom qhuav thiab tawv.
Levofloxacin tam sim no tau lees paub tias yog lub chaw kho mob ophthalmology nrog cov txiaj ntsig zoo. Qee cov kws tshaj lij tau tsim cov tshuaj levofloxacin qhov muag ua tshuaj tua kab mob rau lub hom phiaj no. Siv polyvinylpyrrolidone (PVP) ua ib lub thickener, npaj levofloxacin sustained-tso lub qhov muag tee sustained-tso formulation tuaj yeem tsim ib zaj duab xis nyias ntawm lub qhov muag tom qab instillation rau hauv lub qhov muag, tsis zoo li cov qhov muag zoo tib yam feem ntau ntawm cov kua tshuaj yuav poob. , kom cov tshuaj muaj peev xwm tswj tau lub sij hawm kho mob ntev nyob rau hauv lub qhov muag, thiab cov nyhuv curative yuav ntxiv dag zog rau; thiab cov tshuaj PVP muaj qee yam viscosity, fluidity tsawg, thiab zoo pob tshab, uas tsis cuam tshuam rau txoj kab ntawm qhov pom. Cov tshuaj pleev qhov muag oily yog qhov zoo dua.
Nws tau raug tshaj tawm nyob rau hauv cov ntaub ntawv hais tias qhov sib ntxiv ntawm cellulose polymers tuaj yeem ncua lub sijhawm sib cuag ntawm cov tshuaj nrog lub qhov ntswg mucosa, yog li txhim kho cov nyhuv ntawm cov tshuaj. Yang Jianhong [5] et al. Hauv kev soj ntsuam kev tshawb fawb ntawm qhov ntswg mucociliary toxicity ntawm vitamin B12 qhov ntswg tee, qhov sib ntxiv ntawm PVP ua cov thickener 1% PV P tov tau pib tsis muaj kev cuam tshuam rau cilia txav ntawm lub palate ntawm cov toads, thiab cov txheeb ze inhibition feem pua ntawm cilia txav tau. tag nrho hauv qhov ntau. Ntau tshaj 90.