Hydrochlorothiazide (hye-droe-klor-oh-THYE-a-zide), Valsartan (val-SAR-tan)
Treats high blood pressure. A lower blood pressure can reduce the risk of stroke and heart attack. This medicine is a combination of an angiotensin receptor blocker (ARB) and a thiazide diuretic (water pill).
Diovan HCTThere may be other brand names for this medicine.
When This Medicine Should Not Be Used
Do not use this medicine if you have had an allergic reaction to valsartan, hydrochlorothiazide, or a sulfonamide (sulfa drug), or if you are pregnant. Do not use this medicine if you are not able to urinate. Do not use this medicine together with aliskiren (Tekturna®) if you have diabetes.
How to Use This Medicine
- Take your medicine as directed. Your dose may need to be changed several times to find what works best for you.
- Carefully follow your doctor's instructions about any special diet.Drink plenty of fluids if you exercise, sweat more than usual, or have diarrhea or vomiting.
- Read and follow the patient instructions that come with this medicine. Talk to your doctor or pharmacist if you have any questions.
If a dose is missed:
- If you miss a dose or forget to use your medicine, use it as soon as you can. If it is almost time for your next dose, wait until then to use the medicine and skip the missed dose. Do not use extra medicine to make up for a missed dose.
How to Store and Dispose of This Medicine
- Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
- Ask your pharmacist, doctor, or health caregiver about the best way to dispose of any outdated medicine or medicine no longer needed.
- Keep all medicine out of the reach of children. Never share your medicine with anyone.
Drugs and Foods to Avoid
Ask your doctor or pharmacist before using any other medicine, including over-the-counter medicines, vitamins, and herbal products.
- Make sure your doctor knows if you also use other medicine for high blood pressure (such as aliskiren, atenolol, metoprolol, Lotrel®, Tekturna®, Vasotec®, Zestril®) or a diuretic (water pill, such as amiloride, spironolactone, triamterene, Aldactone®).
- Make sure your doctor knows if you also use atropine, biperiden (Akineton®), carbamazepine (Tegretol®), cyclosporine (Gengraf®, Neoral®, Sandimmune®), digoxin (Lanoxin®), lithium (Eskalith®, Lithobid®), rifampin (Rifadin®, Rimactane®), or ritonavir (Norvir®). Tell your doctor if you use an NSAID pain or arthritis medicine (such as aspirin, diclofenac, ibuprofen, naproxen, Advil®, Aleve®, Celebrex®, Voltaren®), insulin or an oral diabetes medicine (such as glimepiride, glyburide, metformin, Actos®, Janumet®, Januvia®), medicine to lower cholesterol (such as cholestyramine, colesevelam, colestipol, Colestid®, Questran®), a muscle relaxer (such as carisoprodol, cyclobenzaprine, Flexeril®, Soma®), or a cancer medicine (such as cyclophosphamide, methotrexate, Cytoxan®, Rheumatrex®, Trexall®).
- Ask your doctor before you use any medicine, supplement, or salt substitute that contains potassium.
- Alcohol, narcotic pain relievers, or sleeping pills may cause you to feel more lightheaded, dizzy, or faint when used with this medicine. Tell your doctor if you drink alcohol or use pain relievers or sleeping pills.
Warnings While Using This Medicine
- It is not safe to take this medicine during pregnancy. It could harm an unborn baby. Tell your doctor right away if you become pregnant.
- Make sure your doctor knows if you are breastfeeding, or if you have kidney problems, liver disease, congestive heart failure, diabetes, gallstones, glaucoma, gout, lupus, or high cholesterol. Tell your doctor if you have a mineral imbalance (such as high or low calcium, magnesium, potassium, or sodium in the blood) or have a history of asthma or allergies. Tell your doctor if you have had angioedema that was caused by a blood pressure medicine.
- Check with your doctor immediately if you have blurred vision, trouble seeing, eye pain, or any other change in vision. These could be symptoms of glaucoma, which could cause permanent damage to your vision.
- This medicine could lower your blood pressure too much and cause you to feel dizzy or lightheaded. Stand or sit up slowly if you are dizzy. This is more likely to happen when you begin to use the medicine or if you become dehydrated.
- Do not stop using this medicine without asking your doctor, even if you feel well. This medicine will not cure your high blood pressure, but it will help keep it in normal range. You may have to take blood pressure medicine for the rest of your life.
- Your doctor will do lab tests at regular visits to check on the effects of this medicine. Keep all appointments.
Possible Side Effects While Using This Medicine
Call your doctor right away if you notice any of these side effects:
- Allergic reaction: Itching or hives, swelling in your face or hands, swelling or tingling in your mouth or throat, chest tightness, trouble breathing
- Blistering, peeling, red skin rash
- Change in how much or how often you urinate
- Confusion, weakness, uneven heartbeat, trouble breathing, numbness or tingling in your hands, feet, or legs
- Dry mouth, increased thirst, muscle cramps, nausea or vomiting, uneven heartbeat
- Fever, muscle pain, skin rash
- Joint pain
- Lightheadedness, dizziness, fainting
- Rapid weight gain, swelling in your hands, ankles, or feet
- Trouble seeing, eye pain
If you notice these less serious side effects, talk with your doctor:
If you notice other side effects that you think are caused by this medicine, tell your doctor
Call your doctor for medical advice about side effects. You may report side effects to FDA at 1-800-FDA-1088