Lab 5mg/1ml Injection is a medicine used in the urgent treatment of hypertensive emergency (severely increased blood pressure). It also helps to treat severe hypertension in pregnancy, when rapid control of blood pressure is essential. Lab 5mg/1ml Injection brings about an immediate reduction in blood pressure and the workload of the heart. It is administered by a doctor and requires continuous blood pressure monitoring. Common side effects of this medicine include dizziness, fatigue, nausea, vomiting, indigestion, paresthesia, nasal congestions, ejaculation disorders, impotence, and edema. Let your doctor know if they persist or get worse. They may be able to suggest ways to prevent or reduce the side effects. Before taking it, let your doctor know if you are suffering from any kidney or liver disease. If you are pregnant or breastfeeding then you should always inform the doctor. Lab 5mg/1ml Injection brings about an immediate reduction in blood pressure and the workload of the heart. It is administered by a doctor and requires continuous blood pressure monitoring.