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Hydroxypropyl Methylcellulose

Excipient (pharmacologically inactive substance)

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 Accessed 08/19/2011

[2] Innovate Us. What is Hypromellose? Accessed 08/19/2011

Top Medications with this excipient