TELWIN TRIO TAB. combination work to lower blood pressure but in different ways. Together they help to relax blood vessels and make it easier for your heart to pump blood around your body. This lowers blood pressure. If your blood pressure is controlled you are less at risk of having a heart attack, stroke, or kidney problems. The medicine must be taken regularly as prescribed to be effective. You do not usually feel any direct benefit from taking this medicine, but it works in the long term to keep you well.