Hydroxypropyl methylcellulose (HPMC), is a semisynthetic, inert, viscoelastic polymer used as eye drops, as well as an excipient and controlled-delivery component in oral medicaments, found in a variety of commercial products.
H 1688 (OTTO) HPMC, K4M Cas 9004-65-3 - used as an emulsifier, thickening and suspending agent similar to animal gelatin. H 1688 (OTTO) HPMC, K4M Cas 9004-65-3 - used in the development of controlled-delivery medicament.