Efnocar-CT 40/12.5 Tablet is a combination of two medicines used to treat hypertension (high blood pressure). It works by helping the kidneys get rid of unwanted salt and water in the body. It also relaxes the blood vessels. Keeping blood pressure in control helps reduce the risk of stroke and heart attack. Take Efnocar-CT 40/12.5 Tablet in the exact dose and duration prescribed by your doctor. Keep taking it for as long as advised by your doctor. Even if you feel well, do not stop this medicine on your own because high blood pressure often has no symptoms. If you stop taking it, your condition may get worse. Keeping active with regular exercise, reducing your weight and eating a healthy diet will also help control your blood pressure. Follow your doctor’s advice while taking this medicine.Some common side effects of this medicine include nausea, vomiting, diarrhea or constipation, and headache. Consult your doctor if any of these bother you, or get worse, or do not go away.  You may also experience dizziness due to low blood pressure, hence rise slowly from sitting position or avoid driving.Before taking it, let your doctor know if you have any liver or kidney problems. Pregnant or breastfeeding women should also consult their doctor for advice before taking this medicine. You also need to tell your doctor what other medicines you are taking, especially those used to treat high blood pressure or heart conditions. You should have your blood pressure, kidney function, level of electrolytes, and blood sugar level checked regularly to make sure that this medicine is working properly.