Which of the following can be used to delay preterm contractions of uterus with best neurological outcome for the fetus?
Mgso4
Nifidipine
Ritodrine
Isoxprine
Ans. A.MgSo4Antenatal magnesium sulfate for both tocolysis and fetal neuroprotection in premature rupture of the membranes before 32 weeks' gestation. Other tocolytic drugs:Ritodrine, salbutamol and magnesium sulphate are tocolytic drugs used to terminate preterm labour and delivery.Other tocolytic drugs are isoxsuprine, indomethacin, calcium channel blockers, glyceryl trinitrate, atosiban and glyceryl trinitrate.