Abstract

Introduction: Nausea and vomiting are the most common complaints during pregnancy. Due to the limited effect and dangerous side effects of antiemetic use, herbal medicine has been welcomed by pregnant women as the most active and complementary extract of pomace. The contradictory results in this area led the researcher to conduct a systematic study of the effects of medicinal plants on nausea and vomiting during pregnancy. Method: In this structured review, all studies conducted at home and abroad during the period 2018–2008 were analyzed using keywords from internal and external databases and data were analyzed using meta-analysis [Random Effect Model]. Selected articles were collected according to the inclusion criteria and finally examined more closely. Findings: After searching the databases and extracting numerous articles with titles and abstracts, 360 articles were reviewed and finally, 15 articles were selected. The types of herbs used to prevent and treat pregnancy-related nausea were ginger, chamomile, mint, pomegranate, and cardamom, respectively. Conclusion: These interventions have been studied in a wide range of pregnant women, while maternal age, multiparous age, gestational age and time to onset of nausea have significant effects on response to treatment and severity of nausea, also concerning it is not easy to judge the efficacy of different types of herbs on pregnancy-related nausea and generalize the results easily. And it has side effects on the fetus‎.