Before you begin using a medication, be sure to inform your doctor of any medical conditions or allergies you may have, any medications you are taking, whether you are pregnant or breast-feeding, and any other significant facts about your health. These factors may affect how you should use this medication.
Breathing conditions: People with asthma and certain other breathing problems should not take labetalol.
Diabetes: The signs of low blood sugar may not be as noticeable when taking labetalol. People with diabetes who take insulin or other medications that work by reducing the blood sugar should be cautious and monitor blood sugar carefully while taking labetalol.
Dizziness: Move slowly when moving from a lying down or sitting position to a standing position as dizziness may occur, especially when this medication is first being started.
Dry eyes: Dry eyes have been reported with the use of this medication.
Hyperthyroidism (high level of thyroid hormones): People with hyperthyroidism should be cautious while taking labetalol as it may reduce the symptoms of this condition and give a false impression of improvement. Stopping the medication suddenly could worsen this condition.
Liver disease: Lower doses of labetalol may be required for people with liver disease. Rarely, liver injury has been reported with the use of this medication. Liver tests should be performed at regular intervals during therapy with labetalol.
Skin conditions: Various skin rashes have been reported with the use of this medication.
Stopping the medication: This medication should not be stopped suddenly by people with angina. There have been reports of severe worsening of angina, heart attack, or abnormal heart rhythms occurring in people with angina pectoris who have abruptly stopped taking their medication.
Pregnancy: Labetalol should be used during pregnancy only if the potential benefit justifies the potential risk to the mother and unborn baby.
Breast-feeding: Labetalol passes into breast milk and should not be used by breast-feeding mothers. If the medication is considered essential for the health of a woman who is breast-feeding, she will need to stop breast-feeding.
Children:The safety and effectiveness of using this medication have not been established for children.
Seniors: Seniors may be more sensitive to the side effects of labetalol and may require lower doses.