The purpose of tocolysis in the event of threatened preterm labor is to delay the progress of labor and prolong pregnancy sufficiently to allow time for corticosteroids to be administered to speed up fetal lung maturity and for the expecting mother to be transferred to a tertiary care center equipped to manage preterm delivery with appropriate neonatal and maternal care. Tocolytic medications can temporarily stop uterine contractions until therapy is given to mature the fetus's lungs and improving pregnancy outcomes for both mother and the baby. The goal of tocolysis is to allow for an opportunity to administer appropriate treatment and reduce the risk for perinatal morbidity and mortality.