Before taking carvedilol, tell your doctor or pharmacist if you are allergic to it; 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: certain types of heartbeat/heart rhythm problems (such as slow/irregular heartbeat, sick sinus syndrome, second- or third-degree atrioventricular block), breathing problems (such as asthma, chronic bronchitis, emphysema), severe heart failure requiring hospitalization, liver disease, kidney disease, blood circulation problems (such as Raynaud's disease, peripheral vascular disease), serious allergic reactions including those needing treatment with epinephrine, overactive thyroid disease (hyperthyroidism), a certain type of tumor (pheochromocytoma), other heart problems (such as Prinzmetal's variant angina), a certain muscle disease (myasthenia gravis).
Before having surgery (including cataract eye surgery), tell your doctor or dentist about all the products you use (including prescription drugs, nonprescription drugs, and herbal products).
This drug may make you dizzy, drowsy, or cause you to faint. This is most likely to occur within 1 hour after taking your dose, especially when you start carvedilol treatment or any time your doctor increases your dose. During these periods, avoid driving and doing hazardous tasks. 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.
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 low blood sugar, 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 doctor may need to adjust your diabetes medication or diet.
People who wear contact lenses may have dry eyes while taking this medication.
Older adults may be more sensitive to the side effects of this drug, especially dizziness and lightheadedness.
This medication is not recommended for use during pregnancy. It may harm an unborn baby. Consult your doctor for more details.
It is unknown if carvedilol passes into breast milk. However, it is unlikely to pass into breast milk in large amounts. There is a low risk that it may have undesirable effects on a nursing infant. Consult your doctor before breast-feeding.