Labetox Injection is a medication used for treating hypertensive emergencies and severe hypertension in pregnancy. It reduces blood pressure and heart workload and requires continuous monitoring. Common side effects include dizziness, fatigue, nausea, vomiting, paresthesia, impotence, edema, and cold fingers. Patients with kidney or liver disease, pregnant or breastfeeding, and those taking Labebet should inform their doctor.