What do systematic reviews say?

Dopamine antagonists vs placebo

Dopamine antagonists may leads to lower vomiting ‐ intraoperative 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 0.41 [0.28, 0.6]
  12 studies · 942 participants
  Low