PRN (When Required) Medication in Care Homes 18 Feb, 2021 Herts Valley CCG – ‘When Required’ Medication (PRN) Good Practice Guidance for Care Homes v1.0 – February 2020 Herts Valley CCG – When Required PRN/Variable Dose Template (Appendix 1) East and North Herts CCG – ‘When required’ PRN Medication Tweet