Sick Day Rules


For those patient on oral medication only, not including sulphonylureas (glicazide) or SGLT2 inhibitors (flozins) and you are unwell with vomiting or diarrhoea

  • Continue with medication as normal*
  • Encourage adequate fluid and diet intake, considering dietary alternatives should the patient be unable to manage their normal diet i.e. lighter carbohydrate options
  • Consider providing an electrolyte replacement, e.g. Diorlyte®, Rehidrat®, Electrolade® depending on the severity of vomiting, age of patient etc. (also appropriate if person is experiencing significant diarrhoea)


  • If taking Metformin, please discontinue this medication if prolonged periods of vomiting/diarrhoea.

  • It is advisable to stop taking a SGLT2 inhibitor (eg, dapagliflozin, canagliflozin, empagliflozin) if unwell and unable to eat or drink. If this is the case, it is essential that you contact a GP/diabetes team for advice as soon as possible

For those patient taking sulphonylurea (Glicazide) medication:

  • You will have access to blood glucose monitoring equipment; frequency of self-monitoring of blood glucose (SMBG) should be increased to a minimum of daily - with a range of fasting and pre-meals (especially if dietary intake is affected)
  • It is important to continue trying to eat little and often and ensure that you have some carbohydrates.
  • Please contact the surgery if your blood glucose levels are persistently > 17

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