What do systematic reviews say?

Dopamine antagonists vs placebo

Dopamine antagonists may leads to lower nausea ‐ 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 0.61 [0.48, 0.79]
  7 studies · 601 participants
  Low