* A Dietary Supplement Querciplex, provided by Douglas Laboratories, is a unique formulation of quercetin, magnesium and bromelain. Quercetin is a bioflavonoid that has excellent antioxidant activity. Magnesium synergistically supports the quercetin activity. Bromelain is a proteolytic enzyme purified from pineapple, which is active and stable at the acidic levels found in the stomach.