Context:Medicinal plants have reportedly fewer side effects, compared to antifungal agents.Aims:This study was designed to compare the anti-Candida activity of two medicinal plants with two routine antifungal agents, used in the clinics, on Candida species isolated from the oral cavity of the liver transplant patients.Subjects and Methods:Anti-Candida activities of ethanol extracts of Lawsonia inermis leaf and Ziziphus spina christi unripe and ripe fruit (collected from south of Iran) versus nystatin and fluconazole were evaluated using CLSI M27-A3 standard method.Results:The minimum inhibitory concentration (MIC) 90 values for L. inermis, Ziziphus spina christi ripe, and unripe fruits in Candida albicans were 0.1 μg/mL, 25 μg/mL, and 0.1 μg/mL, and in Candida glabrata were 0.05 μg/mL, 25 μg/mL, and 0.05 μg/mL, respectively. The MIC90 value for nystatin in both species was 0.035 μg/mL, but MIC90 value for fluconazole in C. albicans was 0.5 μg/mL and in C. glabrata was 2 μg/mL.Conclusion:Unripe fruits of Ziziphus spina christi and L. inermis were found more effective than fluconazole on Candida species. Ziziphus spina christi unripe fruit and L. inermis leaf have potential anti-Candida activity and can be considered as a new mouthwash agent to prevent and treat Candida infections. Further studies regarding pharmacokinetics and toxicities of these extracts are needed for their use in humans.
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