Snapshot A 24-year-old G1P0 presents to a local emergency room with contractions. She is currently 30 weeks pregnant. She reports her membranes have not ruptured. She is given a tocolytic to suppress the contractions. She is also given betamethasone to promote fetal lung maturity. She is transferred to a larger tertiary care center. Introduction Drugs login to view 4 more bullets Mechanism of action login to view 6 more bullets Clinical use login to view 2 more bullets Adverse effects login to view 9 more bullets