The Department of Health and Social Care has issued a medicines supply notification (MSN/2025/036) for Levemir® (insulin detemir) FlexPen® 100units/ml solution for injection 3ml pre-filled pens and Levemir® Penfill 100units/ml solution for injection 3ml cartridges, which are being discontinued.

Stock is anticipated to be exhausted by the end of 2026. Advice on the discontinuation of all Levemir® presentations is being produced and will follow in the coming months.

Actions for prescribers 

• To not initiate new patients on any Levemir® product.
• To not make switches to alternative insulins currently for existing Levemir® patients.
• Be prepared to implement insulin switches for all existing Levemir® patients when clinical guidance is issued in the coming months.

For detailed information on the shortage, clinicians should refer to the Specialist Pharmacy Service medicines shortage tool (login required) for actions required.

ScriptSwitch® messages have been enabled to provide information on this shortage to support primary care.