What do systematic reviews say?

Corticosteroids vs placebo

Corticosteroids may leads to lower vomiting ‐ postoperative compared with placebo (low certainty).

• Interventions for preventing nausea and vomiting in women undergoing regional anaesthesia for caesarean section 2021 · Cochrane Headline outcomes only
  RR 0.68 [0.49, 0.95]
  7 studies · 793 participants
  Low