A computer network system and method for printing accompanying information and prescription labels in pharmacies, comprises: a central CS; a PMS; a data transmission network through which said PMS and said central CS can communicate; wherein said PMS includes an I/O terminal, a scanner, and a first printer; wherein said PMS includes a PMS SO and a Catalina SO; said PMS SO is configured to receive and store prescription information for a prescription, and to associate a prescription identification with said prescription; said Catalina SO is configure to select accompanying information for said prescription, to format and save said accompanying information in an accompanying information print file; and said PMS is configured to print a prescription label for said prescription and said accompanying information print file.