eng Oriental Scientific Publishing Company Biomedical and Pharmacology Journal 0974-6242 2018-06-25 11 2 959 963 10.13005/bpj/1454 20992 article Jayanthi M. K. 1 Siddamma Amoghimath 2 Department of Pharmacology, JSS Medical College, Mysuru, Karnataka, India. Department of Pharmacology, Gadag Institute of Medical Sciences, Karnataka, India. To study the diuretic activity in ethanolic extract of leaves of delonix regia in wistar albino rats. After obtaining the permission from the Institutional Ethical Committee (IAEC) Wistar albino rats were randomly selected and divided into 4 groups. The animals were fasted and deprived of food and water 20hrs prior to the experiment. On the day of experimentation, Group 1 negative control received Normal saline (25ml/kg), Group 2 positive control received Furosemide 20mg/kg body weight, and Group 3 received ethanonic extract of delonix regia 100mg/kg and Group 4 received ethanonic extract of delonix regia 200 mg/kg. Delonix regia increase the excretion of sodium and water at the dose of 100mg/kg and 200mg/kg of body weight. The diuretic index is 5.93 and 6.45 at 100mg/kg and 200mg/kg of delonix regia respectively. The diuretic activity if delonix regia 100mg/kg is 0.61 and 0.67 at dose 200mg/kg, which is more than that of negative control but less when compared to positive control. Ethanonic extract of Delonix regia showed significant diuretic activity at both 100mg/kg and 200mg/kg doses. https://biomedpharmajournal.org/vol11no2/to-evaluate-the-diuretic-activity-in-ethanolic-extract-of-leaves-of-delonix-regia-in-wistar-albino-rats/ Delonix Regia Diuretic Ethanolic Furosemide