Codeine has been added to the list of medications that will be monitored by Victoria's new SafeScript real-time prescription monitoring system, joining a list of prescription opiates, benzodiazepines and sedatives such as Stilnox.

Codeine, which was rescheduled as a prescription-only drug earlier this year, was originally going to be added at a later date but the government has accepted a recommendation that it be included when the system rolls out in October.