Final answer:
Tocolytic drugs are administered during pre-term labor to suppress premature uterine contractions and prevent early delivery.
Step-by-step explanation:
A tocolytic drug is usually administered during pre-term labor to delay the birth process. Tocolytics are medications used to suppress premature uterine contractions. The hormone primarily responsible for contractions during labor is oxytocin, and a synthetic form of this hormone, known as Pitocin, may be used to help restart or maintain labor if it stalls. A tocolytic drug, however, has the opposite effect, working to inhibit contractions and prevent premature delivery.