Esmocard 100mg Injection belongs to a group of medicines called beta-blockers. It is used to treat emergency high blood pressure (hypertension), angina (heart-related chest pain), irregular heart rhythms (arrhythmia). Esmocard 100mg Injection is administered under the supervision of a doctor or nurse. You should not self-administer this medicine at home. The dose and frequency depend on what you are taking it for and the severity of your condition. It is generally given along with continuous monitoring of blood pressure and heart rate. The main side effects of this medicine are fatigue, headache, slow heart rate, feeling dizzy, and nausea. These are usually mild and short-lived. It may also cause shortness of breath or low blood pressure in some people. To reduce the risk of side effects your doctor will probably start the medicine at a low dose and gradually increase it. Consult your doctor if the side effects bother you or do not go away. Before taking it, let your doctor know if you have any liver problems. It may also not be suitable for people who have a slow heart rate, severe circulation problems, severe heart failure, or low blood pressure. Pregnant or breastfeeding mothers should also consult their doctor before taking it. You must talk to your doctor to find out whether this medicine is suitable for you to use. Avoid drinking alcohol as it may increase certain side effects.