Medication and dehydration

Taking certain medicines when you are dehydrated can result in you developing a more serious illness. Any illness that causes vomiting, diarrhoea and fever (e.g. food poisoning) can cause dehydration.

The following medications should be temporarily stopped during such an illness, until 24-48 hours after you are back to eating and drinking normally:

  • ACE inhibitors

    A type of medication for blood pressure and heart conditions.

    Examples: names ending in “pril” e.g. ramipril, enalapril, lisinopril.

    Dehydration while on these can stop your kidneys working properly.

  • Angiotensin-receptor Blocks

    A type of medication for blood pressure and heart conditions.

    Examples: names ending in “sartan” e.g. losartan, candesartan, valsartan.

    Dehydration while on these can stop your kidneys working properly.

  • Diuretics

    Also called “water tablets” for excess fluid and high blood pressure.

    Examples: Furosemide, Bendroflumethiazide, spironolactone.

    Dehydration while on these can stop your kidneys working properly.

  • Metformin

    A medicine for diabetes. Dehydration while on metformin can put you at risk of developing a condition called lactic acidosis.

  • Non-steroidal anti-inflammatory drugs

    Examples: Ibuprofen, naproxen, diclofenac.

    Dehydration while on these can stop your kidneys working properly.

If you have any questions about your medication, please make an appointment with one of our medical staff.