Abstract
Context
Diclofenac is commonly used as pain relief. Hypoglycemia has rarely been reported due to aspirin and indomethacin use but not of any other nonsteroidal anti-inflammatory drugs.
Case report
A 69-years old endocrinologist participated as a control in a glucagon-like peptide-1 (GLP-1) study. He decreased his plasma glucose to 1.8 mmol/L and developed full-blown hypoglycemic symptoms during an oral glucose tolerance test (OGTT). He had taken a 50 mg diclofenac tablet at 10 pm the evening before for a harmless muscle stretch in the lower back. Apart from well-controlled hypothyroidism he was healthy. During medical school he often had reactive hypoglycemia which came after intake of a carbohydrate rich but otherwise poor breakfast followed by bicycling. However, he had never experienced problems later in life after more decent meals containing slower absorbable carbohydrates. A 3-day continuous glucose monitoring (CGM) was performed three weeks after the OGTT test. A glucose value of 3.1 mmol/L was registered on the third CGM day in the afternoon after intake of 500 mg aspirin in the early morning the same day. Otherwise, all values were normal. A second OGGT where no medications apart from levothyroxine had been taken during at least a 2-week period adjacent was normal. Detailed analyses of the OGTTs showed that the GLP-1 levels before the test were higher after diclofenac exposure while the insulin levels increased after the glucose challenge which suggesting uncoupling.
Conclusion
With this case report we would like to draw attention to that diclofenac may cause hypoglycemia.
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Falhammar, H., Törring, O., Larsson, M. et al. Hypoglycemia after exposure of diclofenac medication. Endocrine 79, 455–458 (2023). https://doi.org/10.1007/s12020-022-03252-z
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DOI: https://doi.org/10.1007/s12020-022-03252-z