NEL adoption of the Single National Formulary

Single National Formulary (SNF) categories now live on NEL netFormulary

North East London has adopted the SNF categorisation system, which went live on the NEL netFormulary on 23 October 2026.

The new SNF categories replace the previous Red, Amber and Green terminology with nationally aligned descriptive categories.

What does this mean for prescribers?

For most medicines, this is a change to the category name and presentation. Existing formulary decisions, prescribing pathways and governance arrangements remain unchanged unless a separate change has been agreed and communicated.

Prescribers should continue to refer to the NEL netFormulary for current formulary categorisation and prescribing information.

Please refer to the below resources for further information

• NEL netFormulary
• SNF category definitions
• SNF information and background, including previous communications

Any queries/feedback around SNF implementation can be directed to the NEL Medicines and Pharmacy Team through the usual routes.