This drug is used to treat high blood pressure (hypertension). Lowering high blood pressure helps prevent strokes heart attacks and kidney problems. This product contains two medications: irbesartan and hydrochlorothiazide. Irbesartan is an angiotensin receptor blocker (ARB) and works by relaxing blood vessels so that blood can flow more easily. Hydrochlorothiazide is a "water pill" (diuretic) that causes you to make more urine which helps your body get rid of extra salt and water.
Dizziness lightheadedness or upset stomach may occur as your body adjusts to the medication. If any of these effects persist or worsen tell your doctor or pharmacist promptly.
To reduce the risk of dizziness and lightheadedness get up slowly when rising from a sitting or lying position.
Remember that your doctor has prescribed this medication because he or she has judged that the benefit to you is greater than the risk of side effects. Many people using this medication do not have serious side effects.
This product may cause a loss of too much body water (dehydration) and salt/minerals. Tell your doctor right away if you have any symptoms of dehydration or mineral loss including: extreme thirst very dry mouth muscle cramps/weakness fast/slow/irregular heartbeat confusion.
Tell your doctor right away if any of these unlikely but serious side effects occur: fainting decrease in vision eye pain symptoms of a high potassium blood level (such as muscle weakness slow/irregular heartbeat) signs of kidney problems (such as change in the amount of urine).
A very serious allergic reaction to this drug is rare. However get medical help right away if you notice any symptoms of a serious allergic reaction including: rash itching/swelling (especially of the face/tongue/throat) severe dizziness trouble breathing.
This is not a complete list of possible side effects. If you notice other effects not listed above contact your doctor or pharmacist.
Before taking this medication tell your doctor or pharmacist if you are allergic to irbesartan or hydrochlorothiazide; 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: gout kidney disease liver disease lupus severe loss of body water and minerals (dehydration) skin cancer.
This drug may make you dizzy. Alcohol or marijuana (cannabis) can make you more dizzy. Do not drive use machinery or do anything that needs alertness until you can do it safely. Limit alcoholic beverages. Talk to your doctor if you are using marijuana (cannabis).
Severe sweating diarrhea or vomiting can increase the risk for lightheadedness or a serious loss of body water (dehydration). Report prolonged diarrhea or vomiting to your doctor. To prevent dehydration drink plenty of fluids unless your doctor directs you otherwise.
If you have diabetes this product may affect your blood sugar. Check your blood sugar regularly as directed and share the results with your doctor. 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.
This product may affect your potassium levels. Before using potassium supplements or salt substitutes that contain potassium consult your doctor or pharmacist.
Before having surgery tell your doctor or dentist about all the products you use (including prescription drugs nonprescription drugs and herbal products).
Older adults may be more sensitive to the side effects of this drug especially dizziness and change in the amount of urine (kidney problems).
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.)
It is unknown if irbesartan passes into breast milk. Hydrochlorothiazide passes into breast milk but is unlikely to harm a nursing infant. Consult your doctor before breast-feeding.