CSOS

Medical abbreviation · Pharmacy

CSOS stands for Controlled Substance Ordering System, a pharmacy abbreviation.

DEA system that lets registrants order Schedule I and II controlled substances electronically using digital certificates, replacing the paper DEA Form 222.

Example: Submit the oxycodone order through CSOS; the paper 222 forms are for backup only.

Usage notes

Each user must obtain a personal CSOS digital certificate from the DEA, and orders are signed electronically. Electronic ordering reduces errors and speeds delivery compared with paper triplicate forms, which the DEA replaced with a single-sheet Form 222 in 2019.

Related abbreviations

More pharmacy abbreviations

• CDTM – Collaborative drug therapy management
• cGMP – Current good manufacturing practice
• conc – Concentrate
• CPA – Collaborative practice agreement
• CPhT – Certified Pharmacy Technician
• CR – Controlled release
• CSP – Compounded sterile preparation
• CSTD – Closed-system drug-transfer device
• D – Decongestant
• D10W – Dextrose 10% in water
• D5 1/2NS – Dextrose 5% in half-normal saline
• D50 – Dextrose 50%

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Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.

This entry is for general education and is not medical advice. Abbreviation use varies between institutions; always confirm in context.