Type 2 Diabetes – sick day rules

Medications to stop temporarily during a dehydrating illness. Vomiting, diarrhoea and excessive sweating are dehydrating illnesses:

  • Metformin: can cause a serious side effect called lactic acidosis which is more likely if you are dehydrated.
  • GLP-1 analogues: can cause serious side effects if you are dehydrated. Medicine names ending with ‘tide’ such as: exenatide, dulaglutide, liraglutide, lixisenatide and semaglutide
  • SGLT2 inhibitors: can cause a serious side effect called ketoacidosis if you are dehydrated. Medicine names ending with ‘flozin’ such as: canagliflozin, dapagliflozin, empagliflozin and ertugliflozin

Other non-diabetic medication to stop temporarily during illness as they can stop your kidneys working properly and make dehydration worse: 

  • ACE inhibitors: medicine names ending in ‘pril’ such as: lisinopril, perindopril, ramipril
  • ARBs: medicine names ending in ‘sartan’ such as: losartan, candesartan, valsartan
  • NSAIDs: anti-inflammatory pain killers such as ibuprofen, diclofenac, naproxen
  • Diuretics: sometimes called ‘water pills’ such as: furosemide, spironolactone, bendroflumethiazide, indapamide.

See here for more information on sick day rules in Type 2 diabetes – especially if you are using insulin to manage your condition.

Date published: 23rd March, 2024
Date last updated: 23rd March, 2024