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. 2012 Nov;14(11):727-30.
doi: 10.5812/ircmj.3477. Epub 2012 Nov 15.

Study of the effect of mint oil on nausea and vomiting during pregnancy

Hajar Pasha  1 , Fereshteh Behmanesh, Farideh Mohsenzadeh, Mahmood Hajahmadi, Ali Akbar Moghadamnia
Affiliations
Free PMC article

Study of the effect of mint oil on nausea and vomiting during pregnancy

Hajar Pasha et al. Iran Red Crescent Med J. 2012 Nov.
Free PMC article

Abstract

Background: Approximately 80 percent of pregnant women suffer by some degree of nausea and vomiting. But the treatment of nausea and vomiting of pregnancy is rarely successful.

Objectives: The aim of this study was evaluation the effect of mint on nausea and vomiting during pregnancy that its treatment in some recent research has been effective.

Materials and methods: In this double blind RCT, 60 pregnant women with nausea and vomiting of pregnancy were sampled and divided into two groups with Block-randomized method. mint group, in addition to giving the routine training, for four consecutive nights, before sleeping, a bowel of water whit four drops of pure mint essential oil placed on the floor near their beds and in control groups were used four drops of normal saline . The severity of nausea by using Visual Analog Scale (VAS) and severity of vomiting by counting the number of its in 7 days prior, 4 days during, and 7 days after intervention were assessed.

Results: The results showed that the severity of nausea and vomiting did not differ between the two groups in 7days before and after intervention by using repeated measurement test. But during intervention, the severity of nausea showed a decreasing trend (especially in 4th night) in the mint and an increasing trend in the control group. The severity of nausea within 7 days after the intervention had a decreasing trend in both groups; however, the intensity was lower in the mint than saline group but not statically significant. No meaningful relationship has been detected during and after intervention for the intensity of vomiting.

Conclusions: The results of study showed that peppermint essential oil hasn't the effect on nausea and vomiting of pregnancy.

Keywords: Aromatherapy; Mentha piperita; Nausea; Vomiting.

Figures

Figure 1
Figure 1. Flow Diagram of Participants Through each Stage of Randomized, Controlled Trial
Figure 2
Figure 2. The severity of nausea during the 4 days of intervention in normal saline and mint groups (4.30 ± 2.39, 3.59 ± 2.52)
See this image and copyright information in PMC

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