Tri-Olmetor 20 Tablet is an 'anti-hypertensives' medication primarily used for lowering high blood pressure (hypertension) by removing extra fluid (electrolytes) from the body. High blood pressure is a chronic condition in which the blood's force against the artery wall is high. As a result, it increases the risk of heart-related diseases like heart attack, heart failure, stroke, irregular heartbeat and other complications.