Before taking this medication, inform your doctor if you are allergic to Carvedilol, or if you have any other allergies in general.
Before using this medication it is always best to go over your medical history with your doctor, especially if you have had the following; 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), certain eye problems (cataracts, glaucoma).
This medication may make you dizzy, drowsy, and can cause yu to faint. This is likely to occur within 1 hour after taking the medication. Mostly when you have just started the treatment, or when your doctor may increase your dose.
If you have diabetes, this product may mask the fast/pounding heartbeat you would usually feel when your blood sugar falls too low (hypoglycemia). Other symptoms of low blood sugar, such as dizziness and sweating, are unaffected by this drug. This product may also make it harder to control your blood sugar. Check your blood sugar regularly as directed and share the results with your doctor. Tell your doctor right away if you have symptoms of high blood sugar such as increased thirst/urination. Your doctor may need to adjust your diabetes medication, exercise program, or diet.
People who wear contact lenses may have dry eyes while taking this medication.