Comparative Effectiveness of Pharmacological and Non-Pharmacological Interventions for Nausea and Vomiting in Pregnancy: A Systematic Review and Network Meta-Analysis.

Morning sickness — the nausea and vomiting that affects up to 80% of pregnant women — can range from mildly uncomfortable to severely debilitating. For women looking for safe, effective relief, a new study published in the journal Nutrients offers some encouraging news, particularly for those interested in natural and non-drug approaches.

Researchers conducted a large systematic review and network meta-analysis, meaning they pooled and compared data from 24 carefully selected clinical trials involving over 3,000 pregnant women. They evaluated 16 different treatments — both medications and natural therapies — to see which worked best at reducing nausea and vomiting symptoms.

The results were striking for fans of integrative medicine. Among the top-ranked treatments were acupressure applied to the P6 point (a point on the inner wrist long used in traditional Chinese medicine), acupuncture combined with a standard anti-nausea medication, and herbal options like quince and a blend of vitamin B6 with pomegranate and mint. These non-pharmacological approaches ranked alongside — and in some cases above — common medications like dimenhydrinate (the active ingredient in Dramamine).

What does this mean for pregnant women? It suggests that acupressure and acupuncture are not just feel-good remedies — they may be genuinely effective tools for managing one of pregnancy's most common complaints. Importantly, these therapies carry fewer side effect concerns than many medications, which is a major consideration during pregnancy.

The researchers did caution that the overall quality of evidence was low to moderate, and that more high-quality studies are still needed. But for women who prefer to minimize medication use during pregnancy, acupuncture and acupressure represent well-supported, credible options worth discussing with a healthcare provider.

If you are considering acupuncture or acupressure during pregnancy, seek out a licensed acupuncturist with experience treating prenatal patients.

This systematic review and network meta-analysis (Nutrients, 2024) pooled data from 24 RCTs (n=3,017) across 16 intervention categories to comparatively rank pharmacological and non-pharmacological treatments for nausea and vomiting in pregnancy (NVP). Using frequentist pairwise and network meta-analyses, with risk of bias assessed via RoB2 and evidence certainty via CINeMA, the analysis identified acupressure at P6 and acupuncture combined with doxylamine-pyridoxine among the highest-ranked interventions for symptom reduction — alongside quince, vitamin B6 with pomegranate and mint, and dimenhydrinate. Ginger also demonstrated benefit over placebo. Evidence quality was rated low to moderate, with considerable heterogeneity and limited adverse event reporting. Clinically, these findings support integrating P6 acupressure and acupuncture as evidence-informed, low-risk adjuncts or alternatives to pharmacotherapy for NVP, particularly for patients seeking to minimize drug exposure during the first trimester. Further high-powered RCTs with standardized outcome measures are warranted.