The effect of ginger on pregnancy vomiting: A double blind randomized clinical trial

 Background and Objective:
Pregnancy-induced vomiting reduces women's quality of life. Ginger as herbal
medicine has been used to treat pregnancy vomiting. The aim of this study was
to determine the effect of ginger on reducing pregnancy vomiting.    Materials and Methods: This survey was a double blind randomized placebo trial
with control group. For this purpose, 135 pregnant women till 20 weeks of gestation suffering from
vomiting were participated. They were randomly and equally divided into placebo
(starch), control, and ginger (365 mg capsules, 3 times/day for 4 days) groups.
The episods of vomiting were recorded before and after the study (follow up
period) and statistical analysis was done.    Results: There was not a significant difference between the 3
groups about matching items. Meanwhile, in ginger group, there was a
significant difference before and after ginger administration regarding number
of vomiting episodes (p < 0.001). In placebo group, number of vomiting episodes
had also a significant difference before and after intervention at days 1-4
(p < 0.005). Comparison of the three
groups showed that there was a significant difference between number of
vomiting episodes after intervention at days 1-4 (p < 0.005). In addition,
comparison of ginnger and placebo groups showed that a significant difference
exists at second, third, and fourth days (p < 0.05).    Conclusion:
Ginger is effective in reduction of pregnancy vomiting