3179 Green Valley Road • Birmingham, AL 35243-3723 • Office: (205) 968-3570 • Fax: (888) 235-8257


The Controlled Substance Ordering System (CSOS) allows for secure electronic transmission of Schedule II Controlled Substance orders without the supporting paper DEA Order Form 222. CSOS is a DEA approved program. VistaPharm has partnered with Legisym, LLC, a Drummond Group Certified vendor, to bring our customers the most user friendly CSOS system available while ensuring DEA compliance.

VistaPharm’s CSOS system is available through an AS2 connection or as a web-based program that may be accessed from any PC computer with Internet Explorer. CSOS will decrease your costs; ensure order accuracy; decrease paper work; and create faster transactions by eliminating the time, money and energy involved with mailing paper DEA Form 222.

All VistaPharm customers are welcome and encouraged to utilize CSOS. To participate in the program you must hold a DEA CSOS signing certificate. For more information on registering with the DEA see Once you register please contact VistaPharm and we will establish your online account for free.

For additional information or if you have any questions please contact VistaPharm at
877-437-8567 or email



For customers that are registered you may connect the VistaPharm web-based system here.

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