This prescription-only dry-mouth spray utilizes a lipid-based oxygenated glycerol triester (OGT) technology to provide convenient, effective relief of xerostomia symptoms for up to 4 hours. It's designed to help moisten and lubricate the mucosa of the mouth, tongue, and throat. It's available in a convenient and discreet spray vial with no mixing or rinsing required. Suggested Application: 3M Xerostomia Relief Spray is intended to provide relief from chronic and temporary xerostomia (dry mouth).