• You should not take labetalol if you:
- are allergic to it
- have asthma or chronic obstructive pulmonary disease (COPD)
- have a serious heart condition such as second or third degree heart block, severe heart failure, or very slow heartbeats
- have a condition that causes very low blood pressure
• Tell your doctor if you have:
- pheochromocytoma (tumor of the adrenal gland)
- congestive heart failure
- diabetes
- allergies
