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Polyvinyl alcohol
Functional Category
Coating agent; lubricant; stabilizing agent; viscosity-increasing
agent.
Applications in Pharmaceutical Formulation or
Technology
Polyvinyl alcohol is used primarily in topical pharmaceutical and ophthalmic formulations; It is used as a stabilizing agent for emulsions (0.25–3.0% w/v). Polyvinyl alcohol is also used as a viscosity-increasing agent for viscous formulations such as
ophthalmic products. It is used in artificial tears and contact lens solutions for lubrication purposes, in sustained-release formulations
for oral administration and in transdermal patches. Polyvinyl alcohol may be made into microspheres when mixed with a glutaraldehyde solution.