St Richard's Hospital and Worthing have selected the Ultimate labelling system from Episys to improve the security and audit trail on the labelling of drugs.
The hospitals are part of the Western Sussex Hospitals NHS Trust.
Southlands Hospital - a third hospital under the trust - recommended Episys after using the company's Ultimate labelling system.
The hospitals are in the setup phase and will go live once training is complete.
Bernice Smart, technician team manager - aseptic services at Western Sussex Hospitals NHS Trust, said: 'Our aseptic units get regularly audited and during a recent audit we were not graded as highly on our drug labelling as we would have liked.
'We are always seeking to improve the ways we safeguard patient safety and confidentiality and so decided we needed a new system in place that could address these issues.
'We were already using the Episys labelling system at Southlands, and so after the merger of all three hospitals two years ago, it made sense for use to use the same system across all sites.
'This means that if a member of staff is transferred to a different hospital, they are able to use the same system as they are familiar with it - therefore, no time is wasted training them up and no errors are made.'
