Which of the following drugs used for management of preterm labor for also has Neuro- protective role in fetus:-

Preterm labour is labour staing before 37 weeks MANAGEMENT FOR PRETERM LABOUR :- 1) For lung maturity - steroids 2) Tocolytics E.g. - Nifedipine - First line & safest drug MgSo4 - Neuroprotective Very low bih wt. neonates whose mothers were treated with MgSo4 for preterm labor or preeclampsia were found to have a reduced incidence of cerebral palsy at 3 years. Rate of both neonatal death & cerebral palsy were lower in the Mg treated group.