Embonini yemithi, i-hypromellose (I-HPMC, METHOCEL™) ingasetshenziswa njengokugcwalisa, i-binder, i-polymer yokumboza amaphilisi kanye ne-key excipient ukulawula ukukhishwa kwemithi. I-Hypromellose ibilokhu isetshenziswa kumaphilisi iminyaka engaphezu kwengu-60 futhi iyi-key excipient esetshenziswa kabanzi kumaphilisi e-hydrophilic gel matrix.
Izinkampani eziningi zemithi zisebenzisa i-hypromellose ukuze kukhishwe imithi elawulwayo, ikakhulukazi ekwakhiweni kwamaphilisi e-hydrophilic gel matrix. Uma kukhulunywa ngemikhiqizo ye-hypromellose, ungase uzibuze ukuthi ungakhetha kanjani - ikakhulukazi uma ufuna into evumelana nelebula futhi eqhubekayo ukuze imakethwe kumakhasimende akho. Kulo mhlahlandlela, sizokhuluma ngezinto ezibalulekile okudingeka uzazi nge-hypromellose.
Kuyini i-hypromellose?
I-Hypromellose, eyaziwa nangokuthii-hydroxypropyl methylcellulose (HPMC), iyi-polymer esetshenziswa njengesithako semithi ukulawula ukukhishwa kwemithi kusuka kumaphilisi e-gel matrix e-hydrophilic gel.
I-Hypromellose iyinto eyenziwe kancane etholakala ku-cellulose, i-polymer eningi kakhulu ngokwemvelo. Ezinye zezimpawu zayo ezivamile zifaka:
. incibilika emanzini abandayo
. ayincibiliki emanzini ashisayo
. Okungeyona i-ionic
. Incibilika ngokukhetha ezincibilikisini eziphilayo
. Ukuguquguquka, izakhiwo zejeli yokushisa
Ukumanzisa kanye nokuthamba okuzimele ngaphandle kwe-pH
. I-Surfactant
. akunabo ubuthi
. Ukunambitha nephunga kuthambile
Ukumelana nama-enzyme
. Ukuqina kobubanzi be-pH (2-13)
Ingasetshenziswa njenge-thickener, i-emulsifier, i-binder, i-rate regulator, i-film yangaphambili
Iyini i-Hydrophilic Gel Matrix Tablet?
Ithebhulethi ye-hydrophilic gel matrix iyindlela yokulinganisa engalawula ukukhishwa kwesidakamizwa ethebhulethini isikhathi eside.
Ukulungiswa kwethebhulethi ye-hydrophilic gel matrix:
. kulula kakhulu
. Idinga imishini yokucindezela ithebhulethi ejwayelekile kuphela
Vimbela ukulahlwa kwemithi
. Ayithinteki ubulukhuni bethebhulethi noma amandla okucindezela
Ukukhishwa kwemithi kungalungiswa ngokuya ngenani lezinto ezisizayo kanye nama-polymer
Ukusetshenziswa kwe-hypromellose kumaphilisi e-gel-matrix aphilizayo kuye kwavunyelwa kakhulu ngokomthetho, futhi i-hypromellose kulula ukuyisebenzisa futhi inomlando omuhle wokuphepha, okuye kwaboniswa yizifundo eziningi. I-Hypromellose isibe yisinqumo esingcono kakhulu sezinkampani zemithi sokuthuthukisa nokukhiqiza amaphilisi akhishwa njalo.
Izici Ezithinta Ukukhishwa Kwemithi Kumaphilisi E-Matrix:
Uma uklama ithebhulethi ekhishwa isikhathi eside, kunezici ezimbili eziyinhloko okufanele uzicabangele: ukwakheka kanye nokucutshungulwa. Kukhona futhi izici ezincane okufanele uzicabangele lapho kunqunywa ukwakheka kanye nephrofayili yokukhishwa komkhiqizo wokugcina womuthi.
Ifomula:
Izici ezibalulekile okufanele uzicabangele ekuthuthukisweni kwasekuqaleni:
1. I-Polymer (uhlobo lokufaka esikhundleni, i-viscosity, inani kanye nosayizi wezinhlayiya)
2. Izidakamizwa (usayizi wezinhlayiya kanye nokuncibilika kwazo)
3. Izinto ezibangela ukuminyana (ukuncibilika kanye nomthamo)
4. Ezinye izinto ezisizayo (iziqinisi kanye nama-buffer)
Ubuciko:
Lezi zici zihlobene nendlela umuthi okhiqizwa ngayo:
1. Izindlela zokukhiqiza
2. Usayizi Wethebhulethi Nokuma
3. Amandla ethebhulethi
4. Indawo ye-pH
5. Ukumbozwa kwefilimu
Indlela ama-skeleton chips asebenza ngayo:
Amaphilisi e-hydrophilic gel matrix angalawula ukukhishwa kwemithi ngesendlalelo se-gel, okuhlanganisa izindlela ezimbili zokusabalala (izithako ezisebenzayo ezincibilikayo) kanye nokuguguleka (izithako ezisebenzayo ezingancibiliki), ngakho-ke i-viscosity ye-polymer inethonya elikhulu kuphrofayela yokukhululwa. Besebenzisa i-hypromellose, izinkampani zemithi zingasebenzisa ubuchwepheshe bethebhulethi ye-hydrophilic gel matrix ukulungisa iphrofayela yokukhululwa komuthi, zinikeze umthamo osebenza kahle kakhulu kanye nokuhambisana kangcono nesiguli, ngaleyo ndlela kuncishiswe umthwalo wemithi ezigulini. Indlela yokuphuza umuthi kanye ngosuku ingcono kakhulu kunokuhlangenwe nakho kokuthatha amaphilisi amaningi izikhathi eziningana ngosuku.
Isikhathi sokuthunyelwe: Ephreli-25-2024