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What is Dyazide (Triamterene/Hydrochlorothiazide) prescribed for?

This medication is used to treat High Blood Pressure. And by lowering high blood pressure, it can help prevent strokes, heart attacks, and kidney problems. This medication is a combination of two water pills: Triamterene and Hydrochlorothiazide. For people that have low potassium, this medication causes you to make more urine, which helps the body get rid of extra salt and water.  Taking this medication also reduces any extra fluid caused by conditions such as heart failure, liver disease, and kidney disease. Symptoms such as swelling of ankles or feet usually lessen as well.

This medication comes in the singular strength of 50mg/25mg. Remember your dose is based on your medical background and your overall response to the treatment. If your doctor or pharmacist has given you some information in the form of a pamphlet, take the time to read up on this drug, and if you have any questions or concerns regarding this medication, please consult your doctor.

This medication is to be taken by mouth, usually once daily in the morning and it can be taken with our without food.  Avoid taking this mediation within the 4 hours before your bedtime.

If you are taking other medications, for cholesterol, it is best to take this medication at least 4 hours before, or 4 to 6 hours after you have taken the other medicines.

Remember the dosage is based on your medical condition and your response to the treatment.


Before taking this medication, tell your doctor if you are allergic to Triamterene or Hydrochlorothiazide or if you have any other allergies. This product may contain inactive ingredients, which can cause allergic reactions or other problems

Before using this medication, tell your doctor or pharmacist your medical history. Especially if you have had any of the following; diabetes, gout, high level of potassium in the blood, kidney disease (including kidney stones), liver disease, lupus, skin cancer.

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.

Side Effects

Common side effects of this medication do include the following; Dizziness, lightheadedness, headache, or upset stomach.  It is best to speak with your doctor promptly if you are experiencing any of these side effects.

This product may cause your body to lose too much water and salt (dehydration). Tell your doctor right away if you notice any symptoms of dehydration, such as unusual dry mouth/thirst, fast heartbeat, or dizziness/lightheadedness.

However unlikely, these serious side effects should to brought to you doctor’s attention right way; fainting, muscle cramps/weakness, slow/fast/irregular heartbeat, decrease in vision, eye pain, signs of kidney problems (such as change in the amount of urine).


What happens if I suddenly stop taking this medication?

There may be a relapse in symptoms as well as side effects. You should speak your doctor before stop taking this medication.


What is the best dosage to take?

The diagnosis with your doctor will be able to determine the best dosage for your treatment. Work with your doctor closely for dosage and dosing schedules.


What happens if I miss a dose?

You should take the missed dose as soon you realize you have forgotten. If the forgotten dose is closer to your next scheduled dose, take the next schedule dose to avoid overlapping in dose.


What is the best way to store this medication?

This medication is stored at room temperature, and should be kept away from children and pets. Do not throw away this medication in the wastebasket. If you are uncertain how to dispose of this medication speak with your pharmacist for help in safely disposing of this medication.

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