Precautions

Tell your doctor or pharmacist if you are allergic to hydrochlorothiazide or if you have any other allergies. This product may contain inactive ingredients (such as sulfites, which can cause allergic reactions or other problems in some brands). For more information, consult your pharmacist.

Tell your doctor or pharmacist about your medical history, especially if you have diabetes, gout, kidney disease, liver disease, lupus, or skin cancer.

This medication may cause dizziness. You may become dizzy if you consume alcohol or marijuana (cannabis). Do not drive, operate machinery, or do anything else that requires alertness until you are sure you can do it safely. Limit your intake of alcoholic beverages. If you are using marijuana, consult with your doctor (cannabis).

Dehydration is more likely to occur in cases of excessive sweating, diarrhea, or vomiting. Tell your doctor if you experience frequent vomiting or diarrhea. Drink plenty of fluids to avoid dehydration unless your doctor instructs you otherwise.

Hydrochlorothiazide may have an impact on your blood sugar if you have diabetes. Follow your doctor's instructions and check your blood sugar frequently. Your diabetes medication, exercise routine, or diet may need to be changed by your doctor.

Your potassium levels may drop if you take this medication. Consult your doctor before consuming foods high in potassium, such as bananas and orange juice, or before using a potassium-containing salt substitute. Your doctor might advise taking a potassium supplement.

You might become more sun-sensitive as a result of this medication. If you take it for a prolonged period of time, it may also raise your risk of developing skin cancer. Keep sun exposure to a minimum. Avoid using sunlamps and tanning booths. When outdoors, wear protective clothing and sunscreen. If you experience sunburn, blisters or redness on your skin, or if any moles or skin lesions appear new or have changed, call your doctor right away.

Inform your surgeon or dentist of all the products you use prior to surgery (including prescription drugs, nonprescription drugs, and herbal products).

Older people may be more sensitive to the effects of this medication, particularly dizziness.

This medication should be used only when clearly necessary during pregnancy. Consult your doctor about the risks and benefits.

Although this medication passes into breast milk, it is unlikely to harm a nursing infant. Before you start breast-feeding, talk to your doctor.