A Review on Anti-Diabetic Activity of Herbal Drugs with Special Reference to Eucalyptus

Diabetes mellitus is a long-lasting metabolic condition marked by elevated blood sugar levels, caused either by insufficient insulin production or the body's inability to effectively use insulin. Although various synthetic drugs are available, many have adverse side effects or limited efficacy. Herbal medicines are increasingly used as complementary approaches due to their effectiveness, safety, and affordability. This review highlights the anti-diabetic potential of various herbal drugs with a specific focus on Eucalyptus species. Eucalyptus globulus, among others, is widely studied for its bioactive compounds, such as flavonoids, tannins, and essential oils, which exhibit hypoglycemic and antioxidant properties. Mechanisms of action include stimulation of insulin secretion, enhancement of glucose uptake, and inhibition of α-glucosidase. This review aims to provide a comprehensive understanding of Eucalyptus as a promising natural remedy for diabetes management.