Bronchospasm and laryngeal stridor as an adverse effect of oxytocin treatment

Oxytocin is a synthetically prepared hormone that stimulates contractions of uterine smooth muscle and it is used for induction and augmentation of labor as well as in abortions. Adverse effects reported with oxytocin include reflex tachycardia, hypotension, electrocardiographic changes, increased cardiac output, myocardial infarction, alteration in fetal heart rate, seizures, headache, memory impairment, cerebrospinal bleeding, hyponatremia, syndrome of inappropriate antidiuretic hormone secretion, nausea and vomiting, uterine rupture, neonatal hyperbilirubinemia, and anaphylaxis [1]. To our knowledge, bronchospasm and laryngeal stridor occur very rarely in oxytocin anaphylaxis.