Which of the following is the main mechanism of action of methylergonovine in treating postpartum hemorrhage?

[Joyce]

#july2020usmle2ck

Which of the following is the main mechanism of action of methylergonovine in treating postpartum hemorrhage?

A- Blocking sympathetic stimulation
B- Forceful contraction of myometrium
C- Instant blood coagulation
D- Strong vasoconstriction

 

[Tiffany Wong]

D- Strong vasoconstriction