What is the difference between glident and lubricant?

Lubricants are added to tablet formulations primarily to reduce friction between the die wall and granules as the tablet is formed and ejected (Sprowl, 1974; Lachman et al., 1970). The other main activities attributed to a lubricant are: (a) prevention of sticking of granules to the tooling-anti-adherent; and (b) improvement of granule flow properties-glidant (Lachman et al., 1970). A given lubricant may provide one or more of these actions to varying degrees but no one material is highly efficient in all categories (Sperandeo and De Machi, 1976; Strickland, 1959; Sprowl, 1974).