Roridin E is a glucose-6-phosphatase (G6Pase) inhibitor and antibiotic, and is a metabolic byproduct of Roridin A . Roridin E induces significant oxidative stress, characterized by depletion of glutathione in vivo, induction of hepatic lipid peroxidation, and inhibition of renal superoxide dismutase activity. Roridin E reduces blood glucose levels in rats, but exhibits acute toxicity (which is enhanced when co-administered with linoleic acid) and causes hepatotoxicity in male albino mice. Roridin E induces a decrease in total blood protein and increases in the levels of total lipids, γ-glutamyltransferase, alkaline phosphatase, and 5'-nucleotidase. Roridin E can be isolated from molds, and possesses cytostatic and antifungal activities similar to those of Verrucarin A and Roridin A. Roridin E exhibits in vivo activity in rodents and is commonly used in hepatotoxicity-related studies.