I-Hydroxypropyl Methylcellulose (HPMC) iyisithako esisebenziseka kalula esisetshenziswa kabanzi ekwakhiweni okusekelwe kusimende ngenxa yekhono laso lokuthuthukisa ukusebenza, ukusebenza kahle, kanye nokuqina kwezinto eziqinisa ukhonkolo. Njenge-polymer esebenza ngemisebenzi eminingi, i-HPMC ithuthukisa izakhiwo ezibalulekile njengokugcinwa kwamanzi, ukunamathela, kanye nokumelana nokuwa, okwenza kube yinto ebalulekile ekwakheni kwanamuhla.