Copovidone yog dej-soluble polymer resin, hmoov dawb, tsis muaj ntxhiab thiab saj, thiab yooj yim absorbs noo noo. Nws yog soluble nyob rau hauv dej, ethanol thiab anhydrous alcohols, thiab muaj zoo adhesion, hygroscopicity, zaj duab xis-forming zog thiab deg kev ua si. Copovidone yog ib hom kab copolymer ntawm N-vinylpyrrolidone (NVP) thiab vinyl acetate (VA), hu ua PVP / VA.
Copovidone muaj ntau yam kev siv hauv tshuaj, tshuaj pleev ib ce thiab lwm yam kev lag luam vim nws lub cev thiab tshuaj lom neeg tshwj xeeb. Hauv kev lag luam tshuaj, nws feem ntau yog siv los ua cov ntawv khi rau cov ntsiav tshuaj, uas tuaj yeem txhim kho cov compressibility ntawm granules thiab tsim nyog rau ntub, qhuav granulation lossis ncaj qha compression txheej txheem. Tsis tas li ntawd, copovidone kuj tuaj yeem siv los ua cov khoom siv zaj duab xis los txhim kho lub zog thiab yooj yim ntawm cov yeeb yaj kiab, thiab ua ib qho solubilizer hauv cov txheej txheem dispersion.