Acute myocardial infarction in the puerperium in patients receiving bromocriptine.

Although described in the literature as a powerful vasodilator, bromocriptine has been noted to cause vasospasm and hypertension. Two cases are presented where administration of bromocriptine in the puerperium was associated with massive myocardial infarction. These incidents suggest the possibility that bromocriptine occasionally displays the vasoconstrictor effects of other (nonhydrogenated) ergot alkaloids.