The heart of the system is the DrugPak Main Module. This module performs random selections, stores test results, prints reports (result letters, statistical reports, MIS DOT forms, and many more), plus provides for all the necessary tools for random and consortium management. The Main Module Full version is oriented towards those in the drug testing business with no limits to the number of companies entered. The Main Module Lite version is more appropriate for employers who are managing testing internally or for a small consortium.

Six other modules are available to automate and streamline all aspects of managing drug testing. Drug tests can be imported electronically, reviewed, and stored using the MRO Management Module from laboratories, MROs, and other sources. The Document Manager Module offers an imaging system to reduce paperwork handling. Drug and alcohol test results can be distributed via fax and e-mail with the DP Informer Module, or viewed via the web using the DP Live Module, or through an automated voice attendant using the Facts-on-Demand Module. Invoicing is provided with the DP Billing Module, which also integrates with Peachtree and QuickBooks.