It is very important that your doctor check your progress at regular visits to make sure this medicine is working properly and to check for unwanted effects .
Check with your doctor right away if you start having itchy skin, dark urine, loss of appetite, yellow eyes or skin, flu-like symptoms, or stomach pain or tenderness. These could be symptoms of a liver injury .
Labetalol may cause heart failure in some patients. Check with your doctor right away if you are having chest pain or discomfort; dilated neck veins; extreme fatigue; irregular breathing; an irregular heartbeat; shortness of breath; swelling of the face, fingers, feet, or lower legs; weight gain; or wheezing .
This medicine may cause changes in your blood sugar levels. Also, this medicine may cover up signs of low blood sugar, such as a rapid pulse rate. Check with your doctor if you have these problems or if you notice a change in the results of your blood or urine sugar tests .
Make sure any doctor or dentist who treats you knows that you are using this medicine. You may need to stop using this medicine several days before having surgery or medical tests .