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Introduction: For a Long time, anxiety has been an important issue in psychology and different drugs have been applied to treat it. Various studies have demonstrated that the plant Hypericum perforatum has an antidepressant effect. With the industrialization of human societies, pollutants like phenol can be entered in the life cycle that have adverse effects on body organs. Therefore, this study aimed to investigate the antianxiety and antidepressant effects of Hypericum Perforarum extract in rats that were exposed to phenol. Methods: In this study, 54 Wistar rats were used in terms of a 3×3 factorial design with 3 levels of Hypericum perforatum extract (0, 250 and 500 mg/kg.bw) and 3 levels of phenol (0, 100 and 200 mg/kg.bw). Rats received the extract and phenol every other day via gavage method for periods of 15 and 30 days, respectively. Thirty min after each gavage, a behavior test was performed by using the open field and elevated plus-maze. Recuperative effects of Hypericum perforatum were assessed within short (first 15 days) and long (second 15 days) periods. Results: The statistic findings indicated that there were no significant differences between behavior tests with respect to the treatments (P> 0.05). Conclusion: The study results proposed that the used levels of Hypericum Perforarum extract did not show any significant effects on reduction of anxious and depressant behaviors in phenol exposed Wistar rats.

Keywords: Elevated plus-maze, Hypericum perforatum, Open field test, Phenol

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