What do systematic reviews say?

Corticosteroids vs placebo

Corticosteroids probably leads to lower nausea ‐ postoperative compared with placebo (moderate certainty).

• Interventions for preventing nausea and vomiting in women undergoing regional anaesthesia for caesarean section 2021 · Cochrane Headline outcomes only
  RR 0.59 [0.49, 0.73]
  6 studies · 733 participants
  Moderate

Anticholinergic medication vs placebo

• Interventions for preventing nausea and vomiting in women undergoing regional anaesthesia for caesarean section 2021 · Cochrane Headline outcomes only
  no estimate extracted
  0 studies · 0 participants
  GRADE not reported

Sedation vs placebo

It is very uncertain whether sedatives changes nausea ‐ postoperative compared with placebo (very low certainty).

• Interventions for preventing nausea and vomiting in women undergoing regional anaesthesia for caesarean section 2021 · Cochrane Headline outcomes only
  RR 0.25 [0.09, 0.71]
  2 studies · 145 participants
  Very low

5‐HT3 antagonists vs placebo

5‐HT3 antagonists probably leads to lower nausea ‐ postoperative compared with placebo (moderate certainty).

• Interventions for preventing nausea and vomiting in women undergoing regional anaesthesia for caesarean section 2021 · Cochrane Headline outcomes only
  RR 0.4 [0.3, 0.54]
  10 studies · 1340 participants
  Moderate

Acupuncture or acupressure vs placebo

It is very uncertain whether acupressure/acupuncture changes nausea ‐ postoperative compared with placebo (very low certainty).

• Interventions for preventing nausea and vomiting in women undergoing regional anaesthesia for caesarean section 2021 · Cochrane Headline outcomes only
  RR 0.46 [0.27, 0.75]
  7 studies · 1069 participants
  Very low

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

Antihistamines vs placebo

Antihistamines 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 0.44 [0.3, 0.64]
  4 studies · 514 participants
  Low

Opioid antagonists vs placebo

Opioid antagonists showed no clear difference in 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 0.75 [0.39, 1.45]
  1 study · 120 participants
  Low

Ginger vs placebo

It is very uncertain whether ginger changes nausea ‐ postoperative compared with placebo (very low certainty).

• Interventions for preventing nausea and vomiting in women undergoing regional anaesthesia for caesarean section 2021 · Cochrane Headline outcomes only
  RR 0.63 [0.22, 1.77]
  1 study · 92 participants
  Very low