uterotonic

例句：

1. 1.The medication is designed to stimulate uterine contractions.
   这种药物旨在刺激子宫收缩。
2. 2.Uterotonics are commonly used during labor to help with the process of childbirth.
   在分娩过程中，宫缩素常被使用以帮助进行分娩过程。
3. 3.The woman was given a uterotonic injection to speed up the labor process.
   这名妇女接受了一种宫缩素注射，以加快分娩进程。