DTM 30mg Tablet is prescribed to treat angina (heart-related chest discomfort), excessive blood pressure, and certain forms of abnormal heartbeats (arrhythmia). It is referred to as a calcium channel blocker. DTM 30mg Tablet works by relaxing blood arteries, allowing blood to flow more readily throughout your body. This lowers your blood pressure and decreases your chances of having a stroke, heart attack, or kidney issues in the future. To be effective, it must be taken on a regular basis, as prescribed. 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 fine, do not discontinue taking this medication without first consulting your doctor.