Published: 2 March, 2021 TGA Ref: RC-2021-RN-00191-1 AMSL Diabetes and Dexcom recently became aware that a specific medication, hydroxyurea, falsely increases glucose readings on Dexcom CGM systems. This may result in failure to treat hypoglycaemia from missed low sensor glucose readings or by causing other errors in diabetes management decisions. AMSL Diabetes has provided additional information about this Defect Correction notice here.