Schisandrin B exhibits antioxidant activity which may be responsible for its hepatic protecting activity. It was shown to increase glutathione level and Dt-diaphorase enzyme activityA compound shown to up-regulate cellular antioxidant response. Schisandrin B exhibits antioxidant activity which may be responsible for its hepatic protecting activity. It was shown to increase glutathione level and Dt-diaphorase enzyme activity A compound shown to up-regulate cellular antioxidant response.