Before taking this medication, tell your doctor or pharmacist if you are allergic to propranolol or hydrochlorothiazide; or to other thiazides (such as chlorothiazide); or if you have had a serious reaction to other beta blockers (such as metoprolol, atenolol); 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 (such as asthma, bronchitis, emphysema), diabetes, 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 (such as Raynaud's disease), a certain adrenal gland tumor (pheochromocytoma), mental/mood disorders (such as depression), certain muscle/nerve disease (myasthenia gravis), gout, dehydration, lupus, certain recent nerve surgery (sympathectomy), severe allergic reactions, untreated mineral imbalance (such as low potassium/magnesium, high calcium), skin cancer.

Before having 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 or blur your vision. Alcohol or marijuana (cannabis) can make you more dizzy. Do not drive, use machinery, or do anything that needs alertness or clear vision until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).

Severe sweating, diarrhea, or vomiting may cause dehydration and cause you to feel lightheaded. Tell your doctor if you have severe diarrhea or vomiting. To prevent dehydration, drink plenty of fluids unless your doctor tells you not to.

This drug may reduce the potassium levels in your blood. Ask your doctor about increasing the amount of potassium in your diet (such as by eating bananas or drinking orange juice) or about using a salt substitute containing potassium. A potassium supplement may be prescribed by your doctor.

This product may prevent the fast/pounding heartbeat you would usually feel when your blood sugar level falls too low (hypoglycemia). The risk is higher if you have diabetes, or are vomiting, fasting, or not eating regularly. Other symptoms of low blood sugar level, such as dizziness and sweating, are not affected by this drug.

If you have diabetes, this product may make it harder to control your blood sugar levels. Check your blood sugar levels regularly as directed by 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.

This medication may make you more sensitive to the sun. It may also increase your risk for skin cancer, especially if you take it for a long time. Limit your time in the sun. Avoid tanning booths and sunlamps. Use sunscreen and wear protective clothing when outdoors. Tell your doctor right away if you get sunburned, have skin blisters/redness, or notice new or changed moles/skin lesions.

Older adults may be more sensitive to the effects of this product, especially dizziness.

During pregnancy, this product should be used only when clearly needed. Infants exposed to the medications in this product during pregnancy may have low birth weight, low blood sugar, slow breathing/heartbeat, liver problems, or bleeding problems. Discuss the risks and benefits with your doctor.

The medications in this product pass into breast milk. Consult your doctor before breastfeeding.