Hydroxypropyl Methylcellulose
Excipient (pharmacologically inactive substance)
Medically reviewed by Drugs.com. Last updated on Sep 15, 2018.
What is it?
Hypromellose, also commonly known as hydroxypropyl methycellulose (HPMC) is a coating agent and film-former used as an inactive ingredient in the pharmaceutical industry.[1] It has also been used as a rate-controlling polymer for sustained-release dose forms.
As a powder, hypromellose is off-white to beige and may be in granules. Hypromellose is considered an inert ingredient. It has a high viscosity and is often used in ophthalmic preparations as artificial tears for dry eyes.[2] In the US, it is available over-the-counter (OTC) in such products as Isopto Tears and Nature’s Tears.
[1] [1]Dave RH. Overview of pharmaceutical excipients used in tablets and capsules. Drug Topics (online). Advanstar. 10/24/2008 http://drugtopics.modernmedicine.com/drugtopics/Top+News/Overview-of-pharmaceutical-excipients-used-in-tabl/ArticleStandard/Article/detail/561047. Accessed 08/19/2011
[2] Innovate Us. What is Hypromellose? http://www.innovateus.net/health/what-hypromellose. Accessed 08/19/2011
Further information
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