HPMC is used as a binder, lubricant, and release-modifying agent in tablets and capsules. It is also used as a matrix-forming agent in controlled-release dosage forms and as a viscosity-increasing agent in ophthalmic and nasal solutions.

hydroxyethyl cellulose solubility. HEC is soluble in both cold and hot water, with solubility increasing as the temperature of the solution increases. However, care must be taken not to exceed the maximum temperature at which HEC can dissolve, as excessive heat can cause the polymer to degrade and lose its effectiveness.

