IHydroxypropyl methylcellulose (HPMC) yipolymer eyenziweyo esetyenziswa kakhulu kumashishini amaninzi, ingakumbi kwicandelo lezemithi. I-HPMC ibe yinto ebaluleke kakhulu ekulungiseleleni amayeza ngenxa yokuhambelana kwayo nezinto eziphilayo, ukungabi natyhefu kunye neempawu zayo zomzimba nezekhemikhali ezibalaseleyo.
(1) Iimpawu ezisisiseko ze-HPMC yodidi lweyeza
I-HPMC yi-non-ionic cellulose ether elungiselelwe yi-reaction ye-cellulose ene-propylene oxide kunye ne-methyl chloride phantsi kweemeko ze-alkaline. Ulwakhiwo lwayo olukhethekileyo lweekhemikhali lunika i-HPMC iipropati ezibalaseleyo zokunyibilika, ukuqina, ukwenza ifilimu kunye nokuxubha. Ezi zilandelayo zezinye zeempawu eziphambili ze-HPMC:
Ukunyibilika kwamanzi kunye nokuxhomekeka kwi-pH: I-HPMC iyanyibilika emanzini abandayo kwaye yenze isisombululo esicacileyo esixineneyo. Ukuqina kwesisombululo sayo kunxulumene noxinzelelo kunye nobunzima beemolekyuli, kwaye inozinzo oluqinileyo kwi-pH kwaye inokuhlala izinzile kwiindawo ezine-asidi kunye ne-alkaline.
Iimpawu zeThermogel: I-HPMC ineempawu zethermogel ezikhethekileyo xa ifudunyezwa. Ingenza ijeli xa ifudunyezwa kubushushu obuthile kwaye ibuyele kwimeko yolwelo emva kokuba ipholile. Le mpawu ibaluleke kakhulu kumalungiselelo okukhululwa kwamayeza rhoqo.
Ukuhambelana kwezinto eziphilayo kunye nokungabi natyhefu: Ekubeni i-HPMC isuka kwi-cellulose kwaye ayinatshaja kwaye ayisayi kusabela nezinye izithako, ihambelana kakuhle kakhulu kwaye ayizukufunxwa emzimbeni. Yi-excipient engenatyhefu.
(2) Ukusetyenziswa kwe-HPMC kumayeza
I-HPMC isetyenziswa kakhulu kwishishini lamayeza, igubungela iinkalo ezininzi ezifana namayeza omlomo, awenziweyo kunye namayeza afakwa kwi-injection. Imiyalelo ephambili yokusebenzisa kwayo yile ilandelayo:
1. Izinto zokwenza ifilimu kwiitablethi
I-HPMC isetyenziswa kakhulu kwinkqubo yokugquma iipilisi njengento yokwenza ifilimu. Ukugquma iipilisi akunakukhusela kuphela amayeza kwimpembelelo yendalo engaphandle, njengokufuma nokukhanya, kodwa kukwagquma nevumba elibi kunye nencasa yamayeza, ngaloo ndlela kuphucula ukuthobela kwezigulane. Ifilimu eyenziwe yi-HPMC inokumelana kakuhle namanzi kunye namandla, nto leyo enokwandisa ubomi beshelufu yamayeza.
Kwangaxeshanye, i-HPMC ingasetyenziswa njengeyona nto iphambili kwii-membranes ezilawulwayo zokuvelisa iipilisi ezikhutshwayo nezilawulwayo. Iipropati zayo zejeli yobushushu zivumela amayeza ukuba akhutshwe emzimbeni ngesantya esimiselweyo sokukhululwa, ngaloo ndlela kufezekiswa isiphumo sonyango lwamayeza olusebenza ixesha elide. Oku kubaluleke kakhulu kunyango lwezifo ezingapheliyo, ezifana neemfuno zamayeza exesha elide kwizigulana ezinesifo seswekile kunye noxinzelelo lwegazi.
2. Njengearhente yokukhulula ixesha elide
I-HPMC isetyenziswa kakhulu njengesixhobo sokukhupha amayeza esihlala ixesha elide kumalungiselelo amayeza athethwayo. Ngenxa yokuba inokwenza ijeli emanzini kwaye umaleko wejeli uyanyibilika kancinci kancinci njengoko iyeza likhutshwa, inokulawula ngempumelelo izinga lokukhululwa kwamayeza. Olu setyenziso lubaluleke kakhulu kumayeza afuna ukukhululwa kwamayeza asebenza ixesha elide, anjenge-insulin, amayeza okudakumba, njl.
Kwimeko yesisu, umaleko wejeli we-HPMC unokulawula izinga lokukhululwa kwesiyobisi, uthintele ukukhululwa ngokukhawuleza kwesiyobisi ngexesha elifutshane, ngaloo ndlela unciphise iziphumo ebezingalindelekanga kwaye wongeze ukusebenza. Le propati yokukhululwa okuqhubekayo ifanelekile ngokukodwa kunyango lwamayeza afuna uxinano oluzinzileyo lwamayeza egazini, anje ngee-antibiotics, amayeza okulwa nokuxhuzula, njl.njl.
3. Njengesixhobo sokubopha
I-HPMC idla ngokusetyenziswa njengesihlanganisi kwinkqubo yokwenziwa kwethebhulethi. Ngokufaka i-HPMC kwiinxalenye zamayeza okanye iipowders, ukunyibilika kwayo kunye nokunamathela kwayo kunokuphuculwa, ngaloo ndlela kuphuculwe isiphumo sokucinezelwa kunye namandla ethebhulethi. Ukungabi natyhefu kunye nokuzinza kwe-HPMC kuyenza ibe sisihlanganisi esifanelekileyo kwiithebhulethi, iigranules kunye neekhaphu.
4. Njengesithambisi kunye nesiqinisi
Kwizinto ezilulwelo, i-HPMC isetyenziswa kakhulu njengesithambisi kunye nesiqinisi kwiintlobo ngeentlobo zeziselo eziselwa ngomlomo, amathontsi eliso kunye neekhrimu ezisetyenziswa ngaphandle. Ipropati yayo yokuqina inokunyusa ukuxinana kwamayeza olulwelo, ithintele ukuqhekeka okanye ukuna kwamayeza, kwaye iqinisekise ukusasazwa okufanayo kwezithako zamayeza. Kwangaxeshanye, ukuthambisa kunye neempawu zokufumisa ze-HPMC ziyenza ikwazi ukunciphisa ngempumelelo ukungakhululeki kwamehlo kwiithontsi zamehlo kwaye ikhusele amehlo ekucasukeni kwangaphandle.
5. Isetyenziswa kwiikhaphu
Njenge-cellulose ephuma kwizityalo, i-HPMC iyakwazi ukuhambelana kakuhle ne-biochemical, nto leyo eyenza ukuba ibe yinto ebalulekileyo yokwenza ii-capsules zezityalo. Xa kuthelekiswa nee-capsules ze-gelatin zezilwanyana zemveli, ii-capsules ze-HPMC zizinzile ngcono, ingakumbi kwiindawo ezinobushushu obuphezulu kunye nomswakama ophezulu, kwaye kulula ukuziguqula okanye ukuzinyibilikisa. Ukongeza, ii-capsules ze-HPMC zifanelekile kubantu abatya imifuno kunye nezigulane ezine-allergy kwi-gelatin, nto leyo eyandisa umda wokusetyenziswa kwamayeza e-capsule.
(3) Ezinye iindlela zokusebenzisa amayeza e-HPMC
Ukongeza kwizicelo zamayeza aqhelekileyo apha ngasentla, i-HPMC ingasetyenziswa nakwezinye iindawo ezithile zamayeza. Umzekelo, emva kotyando lwamehlo, i-HPMC isetyenziswa kumathontsi eliso njenge-lubricant yokunciphisa ukungqubana kumphezulu weliso nokukhuthaza ukuchacha. Ukongeza, i-HPMC ingasetyenziswa nakwi-ointments kunye nee-gels ukukhuthaza ukufunxwa kwamayeza nokuphucula ukusebenza kakuhle kwamayeza asekuhlaleni.
I-HPMC yodidi lweyeza idlala indima ebalulekileyo ekulungiseleleni amayeza ngenxa yeempawu zayo zomzimba nezekhemikhali ezibalaseleyo. Njengesixhobo sokongeza amayeza esisebenza ngeendlela ezininzi, i-HPMC ayinakuphucula kuphela uzinzo lwamayeza nokulawula ukukhutshwa kwamayeza, kodwa ikwaphucula namava okusebenzisa amayeza nokunyusa ukuthobela imiqathango yezigulane. Ngokuqhubeka nokuqhubela phambili kwetekhnoloji yamayeza, intsimi yokusetyenziswa kwe-HPMC iya kuba banzi kwaye idlale indima ebaluleke ngakumbi kuphuhliso lwamayeza kwixesha elizayo.
Ixesha leposi: Septemba-19-2024