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Impact of drugs on hypoglycaemia in hospitalised patients
  1. Frederik Vandenberghe1,
  2. Corinne Challet1,
  3. Mathias Maitrejean2,
  4. Laurent Christin3,
  5. Nicolas Schaad1,4,5
  1. 1 Pharmacie Interhospitalière de la Cote, Morges, Switzerland
  2. 2 Medical Analysis Laboratory, Groupement Hospitalier de l’Ouest Lémanique, Nyon, Switzerland, Nyon, Switzerland
  3. 3 Department of Internal Medicine, Groupement Hospitalier de l’Ouest Lémanique, Nyon, Switzerland., Nyon, Switzerland
  4. 4 Department of Basic Neurosciences, Geneva University Hospital, Geneva, Switzerland
  5. 5 Department of Anaesthetics, Pharmacology and Intensive Care, Geneva University Hospital, Geneva, Switzerland
  1. Correspondence to Dr Frederik Vandenberghe, Pharmacie Interhospitaliere de la Cote, Morges 1110, Switzerland; fmvandenberghe{at}


Objectives Hospital admission rates for hypoglycaemia now exceed those for hyperglycaemias among older adults. A growing number of reports associating hypoglycaemia with non-antidiabetic drugs have been published. Clinical pharmacists are often faced with hypoglycaemia in patients taking multiple medications. This study assessed the potential relationship between prescribed drugs and episodes of hypoglycaemia during hospitalisation.

Methods Point-of-care blood glucose values and prescribed drugs were analysed in patients admitted to a regional hospital. Hypoglycaemia cases were defined as patients with at least one hypoglycaemic event (random glucose value ≤3.9 mmol/L), and normoglycaemic cases as those with random glucose concentrations within the range of 4.5–5.8 mmol/L. Analyses were carried out using multivariate logistic regressions and Cox proportional hazard models.

Results 373 patients (53% males; median age=74 years) were included in the analysis and of these, 64 (17%) had at least one hypoglycaemic event. Patients who experienced a hypoglycaemic event had a longer length of stay (median=10 vs 7 days, p<0.01) and a higher rate of antidiabetic drugs prescription (83% vs 37%, p<0.01). The number of non-antidiabetic drugs was associated with an increased risk of hypoglycaemia during hospitalisation (HR 2.3, 95% CI 1.4 to 4, p<0.01). After adjusting by confounders, heparin and pantoprazole were found to be associated with hypoglycaemia.

Conclusions The relationship between hypoglycaemia and polypharmacy reinforces the advice to limit polymedication as much as possible, especially in elderly patients. This result underlines the potential involvement of clinical pharmacists with the aim to reduce the risk of hypoglycaemia during hospitalisation.

  • clinical pharmacology
  • diabetes & endocrinology
  • internal medicine
  • side effects of drugs
  • geriatric medicine
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