Article Text

Download PDFPDF
Acute severe hyponatraemia secondary to polydipsia and associated herbal remedy use
  1. Oliver T R Toovey1,
  2. Ian R Edmond2,
  3. Nikolaos Makris2
  1. 1Milton Keynes Hospital NHS Foundation Trust, Milton Keynes, UK
  2. 2Department of Critical Care, Milton Keynes Hospital NHS Foundation Trust, Milton Keynes, UK
  1. Correspondence to Dr Oliver T R Toovey, oliver.toovey{at}


A 47-year-old woman presented with seizures secondary to euvolaemic hyponatraemia. A collateral history revealed recent increased oral fluid intake and increased use of herbal remedies including valerian root over the New Year period. There was no history of psychiatric disease to support psychogenic polydipsia. She responded to careful sodium replacement in the intensive care unit and was discharged with no neurological sequelae.

Statistics from

Request Permissions

If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.