The combination of triamterene and hydrochlorothiazide is used to treat high blood pressure and edema (fluid retention; excess fluid held in body tissues) in patients who have lower amounts of potassium in their bodies or for whom low potassium levels in the body could be dangerous. The combination of triamterene and hydrochlorothiazide is in a class of medications called diuretics ('water pills'). It causes the kidneys to get rid of unneeded water and sodium from the body into the urine, but reduces the loss of potassium.
The combination of triamterene and hydrochlorothiazide comes as a capsule and tablet to take by mouth. It usually is taken once a day. It is best to take this medication earlier in the day so that frequent trips to the bathroom do not interfere with nighttime sleep. Take triamterene and hydrochlorothiazide at around the same time every day. Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take triamterene and hydrochlorothiazide exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.
This medication controls high blood pressure but does not cure it. Continue to take triamterene and hydrochlorothiazide even if you feel well. Do not stop taking triamterene and hydrochlorothiazide without talking to your doctor.
This medicine may be prescribed for other uses; ask your doctor or pharmacist for more information.
Follow your doctor's directions for your meals, including advice for a reduced salt (sodium) diet . Avoid potassium-containing salt substitutes while you are taking this medication. Talk with your doctor about the amount of potassium-rich foods (e.g., bananas, prunes, raisins, and orange juice) that you may have in your diet.
Take the missed dose as soon as you remember it. However, if it is almost time for the next dose, skip the missed dose and continue your regular dosing schedule. Do not take a double dose to make up for a missed one.
rash or hives
difficulty breathing or swallowing
pain in the upper stomach area
swelling or tenderness of stomach area
unusual bruising or bleeding
loss of appetite
yellowing of skin or eyes
muscle weakness or cramps
feelings of numbness, tingling, pricking, burning, or creeping on the skin
inability to move arms and legs
slow or irregular heartbeat
severe dry mouth
muscle pain or fatigue
If you experience a serious side effect, you or your doctor may send a report to the Food and Drug Administration's (FDA) MedWatch Adverse Event Reporting program online [at http://www.fda.gov/Safety/MedWatch] or by phone [1-800-332-1088].
Keep this medicine in the container it came in, tightly closed, and out of reach of children. Store it at room temperature and away from excess heat and moisture (not in the bathroom). Throw away any medicine that is outdated or no longer needed. Talk to your pharmacist about the proper disposal of your medicine.
In case of overdose, call your local poison control center at 1-800-222-1222. If the victim has collapsed or is not breathing, call local emergency services at 911.
weakness or tiredness
Keep all appointments with your doctor and the laboratory. Your doctor will order certain lab tests to check your body's response to triamterene.
Before having any laboratory test, tell your doctor and the laboratory personnel that you are taking triamterene and hydrochlorothiazide.
Do not let anyone else take your medicine. Ask your pharmacist any questions you have about refilling your prescription.
It is important for you to keep a written list of all of the prescription and nonprescription (over-the-counter) medicines you are taking, as well as any products such as vitamins, minerals, or other dietary supplements. You should bring this list with you each time you visit a doctor or if you are admitted to a hospital. It is also important information to carry with you in case of emergencies.
Last Revised - 07/01/2010
AHFS® Consumer Medication Information. © Copyright, 2014. The American Society of Health-System Pharmacists, Inc., 7272 Wisconsin Avenue, Bethesda, Maryland. All Rights Reserved. Duplication for commercial use must be authorized by ASHP.