What do systematic reviews say?

Dexamethasone vs betamethasone – maternal outcomes

Dexamethasone showed no clear difference in maternal adverse effects of therapy compared with betamethasone – maternal outcomes (moderate certainty).

• Different corticosteroids and regimens for accelerating fetal lung maturation for babies at risk of preterm birth 2022 · Cochrane Headline outcomes only
  RR 0.63 [0.35, 1.13]
  2 studies · 1705 participants
  Moderate