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.
Angina: If you are taking timolol to treat angina, do not stop the medication suddenly. There have been reports of severe worsening of angina, and of heart attack or abnormal heart rhythms occurring for people with angina who have done this. Talk to your doctor about how to safely stop the medication.
Breathing problems: People with asthma and certain other breathing problems should not take timolol.
Diabetes: The signs of low blood sugar may not be as noticeable when taking timolol. People who have diabetes who take insulin or other medications that work by reducing the levels of sugar in the blood should monitor their blood sugar carefully while taking this medication.
Pregnancy: This medication should not be used during pregnancy unless the benefits outweigh the risks. If you become pregnant while taking this medication, contact your doctor immediately.
Breast-feeding: This medication passes into breast milk. If you are a breast-feeding mother and are taking timolol, it may affect your baby. Women should not breast-feed while taking this medication.
Children: The safety and effectiveness of using this medication have not been established for children.