Telkonol Trio 40mg/10mg/12.5mg Tablet is a combination of medications used to treat hypertension (high blood pressure) when a single tablet does not work well. Telkonol Trio 40mg/10mg/12.5mg Tablet relaxes blood vessels, allowing blood to flow more readily throughout your body. It also removes extra water from the body and boosts urine production. This decreases your blood pressure and lowers your chances of experiencing a stroke, heart attack, or kidney problems in the future. You normally don't notice any direct benefits from taking this prescription, but it works in the long run to keep you healthy. Even if you feel better, you should take it on a frequent basis to ensure that it is as effective as possible.