Lacrisert
Active Ingredient(s): Hydroxypropyl CelluloseFDA Approved: * June 1, 1981
Pharm Company: * MERCK
Category: Vision / Eye Health
Hydroxypropyl cellulose (HPC) is a derivative of cellulose with both water solubility and organic solubility. It is used as an excipient, and topical ophthalmic protectant and lubricant. Contents 1 Chemistry 2 Uses 3 See also 4 Notes and references Chemistry HPC is an ether of cellulose in which some of the hydroxyl groups in the repeating glucose units have been hydroxypropylated forming -OCH2CH(OH)CH3 groups using propylene oxide. The average number of substituted hydroxyl groups p... [wikipedia]
* May have multiple approval dates, manufacturers, or labelers.