The broad potential medical benefits of 4-methylumbelliferone as a hepatoprotectant, anti-inflammatory agent, chemotherapeutic agent, and antiviral substance have been described [ref 13,14]. More recent studies indicate that 4-methylumbelliferone (and other 7-hydroxycoumarin derivatives) may be effective against Helicobacter pylori [ref 15], several types of cancer [ref 15-19], and Alzheimer’s disease [ref 20].