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Triamterene is used alone or in combination with other medicines to treat high blood pressure (hypertension). High blood pressure adds to the workload of the heart and arteries. If it continues for a long time, the heart and arteries may not function properly.
What is the most important information I should know about triamterene (Dyrenium)? Do not use this medication if you have kidney disease, urination problems, severe liver disease, or high levels of potassium in your blood. Do not use potassium supplements or other diuretics while you are taking triamterene. Before using this medication, tell your doctor if you have heart or liver disease, diabetes, gout, or a history of kidney stones. Tell your doctor if you are using another diuretic.