Hydroxy Propyl Methyl Cellulose (HPMC)

• Control of degree of substitution for both hydroxypropylation and methoxylation governs the characteristics of HPMC.
• Process involves alkalization, etherification, neutralization and viscosity adjustment.

• Double derivative of cellulose with hydroxypropyl groups and methoxyl groups.
• semisynthetic, inert, viscoelastic polymer used as eye drops, as well as an excipient and controlled-delivery component in oral medicaments
• emulsifier, thickening and suspending agent, and an alternative to animal gelatin.
• prepared from cellulose as a starting material
• pharmaceutical grade developed upto a scale of 1 kg / batch.

• Artificial tears
• Tablet coating to replace gelatin
• Thickening agent & film former
• Hydrophilic matrix