PRECAUTIONS: Before taking this product, tell your doctor or pharmacist if you are allergic to either lisinopril or hydrochlorothiazide; or to other ACE inhibitors (e.g., captopril, benazepril); or to other thiazides (e.g., chlorothiazide); or if you have any other allergies.This medication should not be used if you have certain medical conditions. Before using this medicine, consult your doctor or pharmacist if you have: history of an allergic reaction that included swelling of the face/lips/tongue/throat (angioedema), an inability to make urine (anuria).Before using this medication, tell your doctor or pharmacist your medical history, especially of: kidney disease (e.g., renal artery stenosis), liver disease, blood exchange procedures (e.g., apheresis, dialysis), high cholesterol/triglycerides, loss of too much body water (dehydration), untreated mineral imbalance (e.g., high calcium, high/low potassium, low magnesium), gout, collagen vascular disease (e.g., lupus, scleroderma).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.Before having surgery, tell your doctor or dentist that you are taking this medication.Drink plenty of fluids while taking this medication to help prevent dizziness unless directed otherwise by your doctor. Too much sweating, diarrhea, or vomiting may cause you to feel lightheaded. Report prolonged diarrhea or vomiting to your doctor.This medication may make you more sensitive to the sun. Avoid prolonged sun exposure, tanning booths, and sunlamps. Use a sunscreen and wear protective clothing when outdoors.This product may increase or decrease your potassium levels. Before using potassium supplements or salt substitutes containing potassium, consult your doctor or pharmacist.If you have diabetes, this product may change your blood sugar levels. Check your blood glucose levels regularly as directed by your doctor. Tell your doctor immediately if you have symptoms of high blood sugar such as increased thirst and urination, or signs of low blood sugar such as nervousness, hunger, and shaking. Your anti-diabetic medication or diet may need to be adjusted.Kidney function declines as you grow older. This medication is removed by the kidneys. Therefore, elderly people may be at greater risk for dizziness while using this drug.This medication is not recommended for use during pregnancy due to the risk for harm to an unborn baby. Consult your doctor for more details. (See also Warning section.)Hydrochlorothiazide passes into breast milk and may have undesirable effects on a nursing infant. Breast-feeding while using this medication is not recommended. Consult your doctor before breast-feeding.

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