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Objective: Essential oils are complex mixtures of chemical compounds, extracted from a wide range of plants. The volatile fraction of essential oils is responsible for their characteristic aroma and presents diverse biological properties that have been studied over the years. In Traditional Chinese Medicine, Piper nigrum is considered to be pungent and hot. Although its chemical constituents and respective pharmacological properties have been described by several authors, the volatile fraction is still underestimated as a therapeutic agent. The aim of this study was to evaluate the analgesic properties of the volatile fraction of Piper nigrum essential oil, in patients presenting different types of pain.
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Costa et al. (2016) studied this question.
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