Trimethoprim-sulfamethoxazole-induced refractory hypoglycaemia successfully treated with octreotide.
2021
Trimethoprim-sulfamethoxazole (TMP-SMX) is a commonly prescribed antimicrobial agent for a wide variety of infections. It is generally well tolerated in a majority of patients; however, serious adverse effects have been described with its usage. Hypoglycaemia is an exceedingly rare but potentially life-threatening side effect of this antimicrobial agent due to its sulfonylurea-like effect. We describe a case of symptomatic, refractory hypoglycaemia secondary to TMP-SMX in a patient being treated for Stenotrophomonas maltophilia bacteraemia, which required treatment with 10 hours of intravenous dextrose (including several 50% dextrose boluses), as well as intramuscular glucagon and octreotide. We reviewed previous case reports described in the literature of TMP-SMX-induced hypoglycaemia, in which renal insufficiency was noted to be a common predisposing risk factor in an overwhelming majority of cases. In refractory cases of TMP-SMX-induced hypoglycaemia, intravenous octeotride may be considered for treatment.
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