Focus on Cellulose ethers

I-Hypromellose eyehlayo

I-Hypromellose eyehlayo

IHydroxypropyl methylcellulose (HPMC) isetyenziswa ngokuqhelekileyo ekuqulunqweni kwamathontsi esweni ngenxa yokukwazi ukusebenza njengento etyebisayo kunye ne-lubricant. Amathontsi eliso aqulethe i-HPMC ahlala esetyenziselwa ukukhulula amehlo omileyo kwaye anike isiqabu sexeshana ekucaphukeni kunye nokungonwabi.

Indlela yokusebenza ye-HPMC kumathontsi esweni isekelwe kwisakhono sayo sokwenza ifilimu ekhuselayo kumphezulu weliso. Ifilimu inceda ukugcina umswakama kunye nokuthintela ukukhuphuka kweenyembezi, oku kunokukhokelela ekomeni kunye nokungahambi kakuhle. Ukongeza, iipropathi zokuthambisa ze-HPMC zinceda ukunciphisa ukungqubana phakathi kwenkophe kunye nomphezulu weliso, nto leyo enokunciphisa ngakumbi ukungakhululeki.

Amathontsi eeso e-HPMC afumaneka kwiintlobo ezahlukeneyo zokugxilwa kunye nokuxutywa, ngokuxhomekeke kwiimfuno ezithile zesigulana. Amathontsi anokuthi aqulathe ezinye izithako, ezinje nge-preservatives kunye ne-buffering agents, ukunyusa ukusebenza kwazo kunye nokuzinza. I-pH yamaconsi iphinda ilawulwe ngononophelo ukuze kuqinisekiswe ukuba inyamezeleke kwaye ayibangeli ukucaphuka okanye umonakalo kwiso.

Ukusebenzisa amathontsi eliso e-HPMC, izigulana zidla ngokufaka ithontsi enye okanye ezimbini kwiliso ngalinye njengoko kufuneka. Amaconsi angasetyenziswa amaxesha amaninzi ngosuku, kuxhomekeke kubunzima beempawu. Izigulane kufuneka ziphephe ukubamba incam yedropha kwiliso labo okanye nayiphi na enye indawo ukuthintela ukungcoliseka kwamathontsi.

Lilonke, HPMC iliso amathontsi lukhuselekile kwaye ukhetho olusebenzayo ukukhululeka kwamehlo omileyo kunye nezinye iimpawu ukucaphuka ocular. Babonelela ngefuthe lokuthambisa kunye nokukhusela okunokunceda ukunciphisa ukungonwabi kunye nokukhuthaza ukuphulukiswa kwendawo ye-ocular. Izigulana kufuneka ziqhagamshelane nomboneleli wazo wezempilo ukuze amisele olona nyango lufanelekileyo kwimeko yabo ethile.


Ixesha lokuposa: Mar-10-2023
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