Carstensen and Rhodes (1982) have suggested that when, in stability programs, assays cannot be performed immediately after the protocol-designated storage time, then freezing them until such a time when assays can be performed would be a reasonable manner to retain the protocol schedule.They caution, however, that such a procedure may not be valid for dissolution data.The article to follow deals with real-time data showing that such a process is feasible for nalidixic acid tablets (and presumably for other tablets as well), and that, furthermore, the dissolution pattern would seem to be "frozen" as well.