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Home > Drug Category > Blood Pressure Medication > Dyazide and Equivalent

Dyazide Information

Dyazide (Triamterine/HCTZ) is used in adults to treat fluid retention (edema) due to steroid use, heart, liver or kidney problems or other unknown causes. Dyazide is also used to treat high blood pressure (also called hypertension). Dyazide contains a combination of 2 drugs, triamterene and hydrochlorothiazide. Triamterene helps the body lose excess salt but keep a normal amount of potassium (an electrolyte) in the blood. Hydrochlorothiazide is a diuretic or “water pill” that increases urination. This lowers blood pressure. This medicine does not cure high blood pressure. It helps to control it. Therefore, it is important to continue taking Dyazide regularly even if you feel fine.

Dyazide Side Effects

The most common side effects of Dyazide may include muscle cramps, spasms, and pain, weakness, restlessness; dizziness, pins and needles in your fingers, headache; constipation, diarrhea, nausea, vomiting, decreased appetite, upset stomach, enlargement of the glands in your mouth, dry mouth; reduced libido; bleeding under the skin, rash, red patches on the skin. Call your doctor right away if you have any of the serious side effects such as:
• Decreased levels of potassium in the blood (irregular heartbeats, muscle weakness and generally feeling unwell);
• High potassium level (nausea, weakness, tingly feeling, feeling weak or tired, slow heartbeats, loss of movement);
• Increased blood sugar;
• Kidney problems (little or no urination, swelling in your feet or ankles, feeling tired or short of breath);
• Lupus-like symptoms (muscle or joint pain, flu symptoms, chest pain, and a rash or patchy skin color that worsens in sunlight);
• Low Blood Pressure (dizziness, fainting, light-headedness). May occur when you go from lying or sitting to standing up;
• Other signs of an electrolyte imbalance (thirst, dry mouth, stomach pain, drowsiness, weakness, fast heart rate, muscle pain or weakness, feeling restless or light-headed);
• Signs of liver or pancreas problems such as loss of appetite, upper stomach pain, nausea or vomiting, fast heart rate, dark urine, jaundice.

Dyazide Precautions

Do not use Dyazide if you are allergic to triamterene and hydrochlorothiazide or to any other ingredients in this medication or if you are allergic to any sulfonamide-derived drugs (sulfa drugs); have difficulty urinating or produce no urine; have severe or worsening kidney or liver problems; are breastfeeding; have high potassium levels; have one of the rare hereditary diseases such as Galactose intolerance; Lapp lactase deficiency; Glucose-galactose malabsorption because lactose is a non-medicinal ingredient in Dyazide. Before you start taking this medication, tell your doctor about your medical history, including if you are allergic to penicillin; have diabetes, liver or kidney disease; have a history of kidney stones; have lupus or gout; are dehydrated or suffer from excessive vomiting, diarrhea, or sweating; are using any form of potassium supplementation; are taking any other potassium-conserving medications or “water pills”; are pregnant or thinking of becoming pregnant; are less than 18 or over 65 years old of age. Hydrochlorothiazide in Dyazide can cause Sudden Eye Disorders such as Myopia (sudden nearsightedness or blurred vision); Glaucoma (an increased pressure in your eyes, eye pain). Untreated, it may lead to permanent vision loss. You may become sensitive to the sun while taking Dyazide. Exposure to sunlight should be minimized until you know how you respond. Before you perform tasks which may require special attention, wait until you know how you respond to Dyazide. Dizziness, light-headedness, or fainting can especially occur after the first dose and when the dose is increased. Tell your doctor about all the medications you take including prescription, OTC, herbal supplements and vitamins. There may be a drug interaction between Dyazide and other medications.

Do I need a prescription to order Dyazide?

Yes, a prescription is required from your physician to order Dyazide.