Before taking propranolol, tell your doctor or pharmacist if you are allergic to it; or if you have had a serious reaction to other beta blockers (e.g., metoprolol); or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems. Talk to your pharmacist for more details.
Before using this medication, tell your doctor or pharmacist your medical history, especially of: breathing problems (e.g., asthma, bronchitis, emphysema), heart failure, certain types of heart rhythm problems (sinus bradycardia, Wolff-Parkinson-White syndrome, second- or third-degree atrioventricular block), overactive thyroid (hyperthyroidism), kidney disease, liver disease, blood circulation problems (e.g., Raynaud's disease), a certain type of tumor (pheochromocytoma), mental/mood disorders (e.g., depression), certain muscle/nerve disease (myasthenia gravis), severe allergic reactions.
Before having surgery, tell your doctor or dentist that you are taking this medication.
If you have diabetes, this product may prevent the fast/pounding heartbeat you would usually feel when your blood sugar level falls too low (hypoglycemia). Other symptoms of a low blood sugar level, such as dizziness and sweating, are unaffected by this drug. This product also may make it harder to control your blood sugar levels. Check your blood sugar levels regularly as directed by your doctor. Tell your doctor immediately if you have symptoms of high blood sugar such as increased thirst, hunger, and urination. Your anti-diabetic medication or diet may need to be adjusted.
This drug may make you dizzy. Do not drive, use machinery, or do any activity that requires alertness until you are sure you can perform such activities safely. Limit alcoholic beverages.
To reduce the risk of dizziness and lightheadedness, get up slowly when rising from a sitting or lying position.
Liquid forms of this medication may contain alcohol. Caution is advised if you have alcohol dependence or liver disease. Ask your doctor or pharmacist about using this product safely.
During pregnancy, this medication should be used only when clearly needed. Infants exposed to this medication during pregnancy may have low birth weight, low blood sugar, or slow breathing/heartbeat. Discuss the risks and benefits with your doctor.
This drug passes into breast milk. Consult your doctor before breast-feeding.