Ukusetyenziswa kwe-HPMC kwishishini lamayeza

I-Hydroxypropyl methylcellulose (HPMC)yi-non-ionic cellulose ether eyenziwe nge-polymer cellulose yendalo ngokuguqulwa kweekhemikhali. Ine-solubility elungileyo, i-biocompatibility kunye neempawu zokwenza ifilimu. Ngenxa yokhuseleko lwayo oluphezulu kunye netyhefu ephantsi, isetyenziswa kakhulu kwishishini lamayeza njengesixhobo sokongeza iipilisi, izinto ezikhutshwayo ixesha elide, i-coating agent, izinto ze-capsule, njl.njl., kwaye idlala indima ebalulekileyo kumalungiselelo aqinileyo, amalungiselelo olwelo kunye namalungiselelo okukhululwa okulawulwayo.

1. Ukusetyenziswa kwe-HPMC kwiipilisi

Njengombhathisi

Xa i-HPMC isetyenziswa njenge-binder kwiipilisi, idla ngokufakwa kwisisombululo samanzi okanye isisombululo samanzi esinotywala, esinokuphucula ngempumelelo amandla okubopha phakathi kweempuphu zamayeza, ngaloo ndlela siphucula ubulukhuni kunye nokumelana nokucinezelwa kweepilisi. Kwangaxeshanye, inokuphucula ukusebenza kolwelo kunye nokusebenza kweepilisi, kwaye iqinisekise ukufana kunye nomgangatho wokubumba kwamalungiselelo.

Njengomntu ongazinzanga

Nangona i-HPMC inoburhabaxa obuthile, inokudumba okuhle kunye nokufunxwa kwamanzi kumanqanaba aphantsi oburhabaxa, inokufunxa ngokukhawuleza ijusi yesisu okanye amanzi, kwaye ikhuthaze ukubola kwethebhulethi emva kokwandiswa. Ke ngoko, uburhabaxa obuphantsi be-HPMC ikwasetyenziswa njengento yokuqhekeka kumalungiselelo okukhululwa ngokukhawuleza.

Izinto zesikeleti ezikhutshwa ngokulawulwayo

I-HPMC inokwenza umaleko wejeli kulwelo lwesisu ukunciphisa izinga lokusasazeka kwamanzi kunye namayeza. Ke ngoko, isetyenziswa kakhulu ekulungiseleleni iipilisi ezikhutshwa rhoqo, iipilisi ezikhutshwa ngokulawulwayo kunye nezinye izinto eziqinileyo zomlomo. Ihlala isetyenziswa kunye nezinye iipolymers ezisebenzisa amanzi (ezifana ne-PVP, i-carbomer, njl.njl.) ukwenza inkqubo ezinzileyo yokukhululwa kwamayeza.

2. Ukusetyenziswa kwe-HPMC kwi-tablet coating

I-HPMC ineempawu ezilungileyo zokwenza ifilimu kwaye ayifihli nto kwaye yenye yezinto ezisetyenziswa kakhulu ekugqumeni ifilimu yethebhulethi. Xa ithelekiswa nogquma lweswekile lwendabuko okanye ugquma lwepolymer olunyibilikayo emanzini, ifilimu ye-HPMC inezi nzuzo zilandelayo:

Ukwakheka kwefilimu ngokukhawuleza, okugudileyo nokuhle;

Ukusebenza kokukhululwa okulungisekayo;

Ukhuseleko olufanelekileyo kwiipilisi, alunamanzi kwaye aluna-oxidation;

Ingasetyenziswa kunye neendidi ezahlukeneyo zeplastiki (ezifana ne-PEG, i-triacetin, njl.njl.) ukulungisa ukuguquguquka komaleko wefilimu;

Iyanyibilika kwiintlobo ngeentlobo zezinyibilikisi (amanzi, i-ethanol, izinyibilikisi ezixutyiweyo zamanzi notywala, njl.njl.), iyakwazi ukulungelelaniswa neenkqubo ezahlukeneyo zokulungiselela.

I-HPMC coating idla ngokusetyenziselwa ukulungisa i-enteric coating, i-sustainable-release coating kunye ne-protective coating ukuze kuhonjiswe imbonakalo.

3. Ukusetyenziswa kwe-HPMC kwiikhaphu

Izinto ezisetyenziswa kwi-capsule yezityalo

I-HPMC sisiphumo se-cellulose esithathwe kwizityalo, esinokuthatha indawo ye-gelatin njengeyona nto iphambili esetyenziswa kwiqokobhe le-capsule ukwenza "ii-capsule zezityalo". Xa kuthelekiswa nee-capsule ze-gelatin zezilwanyana, ii-capsule ze-HPMC zinezibonelelo ezilandelayo:

Akukho zithako zezilwanyana, ezifanelekileyo kubantu abatya imifuno nabantu beenkonzo ezithile;

Uzinzo oluphezulu, olungenangxaki kutshintsho lobushushu kunye nokufuma;

Ukungabi namanzi amdaka kunye namandla angcono oomatshini, nto leyo eyandisa ubomi beshelufu yamayeza;

Kulula ukuyizalisa nokuyivala, ifanelekile kwizixhobo zokuzalisa iikhaphu ezichanekileyo.

Izixhobo zokupakisha ze-microcapsule ezikhutshwayo ezilawulwayo

Kwezinye iinkqubo zokukhulula ezilawulwa yi-microcapsule, i-HPMC ingasetyenziswa njengezinto zodonga, isebenzisane nezinye iipolymers ukufezekisa ukukhululwa kancinci kwamayeza emzimbeni ngokulungelelanisa ubukhulu kunye nesantya sokunyibilika.

4. Ukusetyenziswa kwe-HPMC kumalungiselelo olulwelo

Kwizithontsi zamehlo, izisombululo ezithathwayo kunye nokulungiswa kwangaphandle, i-HPMC idla ngokusetyenziswa njengesithambisi, isizinzisi kunye nesincamathelisi:

Amaconsi asemlonyeni: I-HPMC isetyenziswa njengesithambisi sokwandisa ixesha lokuhlala kwamaconsi asemlonyeni we-cornea, ukuphucula ukusebenza kakuhle kwesiyobisi, kunye nokunciphisa iimpawu zamehlo awomileyo.

Amayeza olwelo athathwa ngomlomo: andisa uburhabaxa besisombululo, aphucule incasa, kwaye athintele ukuna kwemvula.

Ukulungiswa kwesikhumba: njengeejeli, amafutha okugcoba, iikhrimu, njl.njl., i-HPMC inokuphucula ukusebenza kwayo kokugquma kunye nokunamathela kwesikhumba, kwaye iphucule amava omsebenzisi.

5. Ukhuseleko kunye nemvume yomthetho

I-HPMC sisithako samayeza esiqinisekiswe yi-FDA kunye ne-EU EMA, kwaye iyahlangabezana nemigangatho ye-pharmacopoeias ezahlukeneyo (ezifana ne-USP, Ph. Eur., JP, njl.njl.). Ayinatyhefu ingako, ayihambelani kakuhle ne-biochemical, kwaye ayibangeli ii-allergy reactions. Sisithako samayeza esikhuselekileyo esaziwayo kwaye sisetyenziswa kakhulu ekulungiseleleni ngomlomo nangaphandle.

6. Iindlela zophuhliso lwexesha elizayo

Ngokuphucuka kweengcamango zamayeza eziluhlaza nezinobuhlobo nokusingqongileyo kunye nokwanda kokungatyi imifuno, amathuba okusetyenziswa kwe-HPMC kwiikhaphu zezityalo kunye namalungiselelo okukhululwa alawulwayo abanzi. Uphando malunga ne-HPMC esebenza kakuhle (njenge-HPMC eguquliweyo ekhethekileyo) ekukhutshweni kwamayeza ekujoliswe kuwo, ukukhululwa okukrelekrele okulawulwayo, njl.njl. nalo luya lukhula ngamandla, nto leyo eya kukhuthaza ukusetyenziswa kwayo kwicandelo lamayeza akumgangatho ophezulu.

Njengesixhobo esisebenza ngeendlela ezininzi kwaye sikhuselekile kakhuluisithako samayeza I-HPMCIdlala indima ebaluleke kakhulu kwishishini lamayeza. Ukususela kwizinto ezincedisayo zemveli kunye nezinto zokugquma ukuya kwizinto zanamhlanje ezilawulwayo kunye nezixhobo zekhaphu yezityalo, ukusetyenziswa kwayo kuyanda rhoqo kwaye yenye yezona zinto zibalulekileyo kwiimveliso zamayeza zanamhlanje.