Dyazide (Triamterene/ Hctz) Shopper Approved

Prescription Prescription Required FormationFormulation: Tablet


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Prescription Prescription Required FormationFormulation: Tablet

Triamterene/ Hctz

(Generic Alternative)

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Dyazide is a prescription medicine used to treat high blood pressure and to reduce fluid retention (edema) caused by various health conditions, such as heart failure, liver disease, or kidney disease.

Dyazide contains a combination of two diuretics: hydrochlorothiazide and triamterene. Hydrochlorothiazide is a thiazide diuretic that helps to remove excess salt and water from the body, while triamterene is a potassium-sparing diuretic that helps to prevent the loss of potassium through urine.

Uses and Dosage

Dyazide is available in the form of capsules for oral use and should be taken as directed by a healthcare provider. To use Dyazide, take the medication by mouth as directed by your healthcare provider, usually once daily in the morning with or without food. Swallow the capsule whole and drink a glass of water thereafter. Note that you must avoid taking this drug 4 hours prior to bedtime to prevent having to get up to pee.

Avoid taking Dyazide in larger or smaller amounts or for longer than recommended by your healthcare provider. Also, follow any other instructions provided by your healthcare provider regarding your treatment with Dyazide. Talk to your healthcare provider about any questions or concerns regarding the use of Dyazide.

Take it at the same time each day to help maintain a consistent level of medication in your body. The typical dose of Dyazide is 1 or 2 capsules taken by mouth once a day.

Side effect

Common Side Effects of Dyazide (Hydrochlorothiazide and Triamterene):

  • Headache
  • Dizziness
  • Lightheadedness
  • Stomach upset

Serious Side Effects of Dyazide (Hydrochlorothiazide and Triamterene):

  • Symptoms of dehydration (dry mouth, increased thirst, palpitations, lightheadedness)
  • Fainting
  • Muscle cramps
  • Irregular heartbeat
  • Eye pain
  • Decrease in vision
  • Signs of kidney problems (changes in urine output)

Form and Strength

Dyazide (Hydrochlorothiazide and Triamterene) is available in the following forms and strength:

Hydrochlorothiazide and Triamterene: Tablet

  • 37.5/25mg
  • 50/25mg


  • Dyazide can cause a loss of too much body water (dehydration) and an imbalance of electrolytes (such as sodium and potassium) in the body. Signs of such an imbalance may include confusion, muscle cramps or weakness, irregular heartbeat, and seizures.
  • Dyazide may cause a worsening of kidney function, particularly in people with underlying kidney disease.
  • Dyazide may cause liver problems, especially in people with pre-existing liver disease.
  • Dyazide can increase uric acid levels in the blood, which may worsen gout or cause new attacks of gout.
  • Some people may develop an allergic reaction to Dyazide, which may cause symptoms such as rash, hives, swelling of the face, lips, or tongue, and difficulty breathing.
  • Dyazide may affect blood sugar levels, which may be of concern to people with diabetes who are taking insulin or other blood sugar-lowering medications.
  • Dyazide should be used with caution during pregnancy and breastfeeding. Discuss the potential risks and benefits of using Dyazide with a healthcare provider if you are pregnant or breastfeeding.
  • Dyazide may interact with other medications, such as lithium, digoxin, and certain blood pressure medications, which may increase the risk of side effects or reduce the effectiveness of the medication.

Frequently Asked Questions (FAQ)

What should I do if I miss a dose of Dyazide?

If you miss a dose of Dyazide, take it as soon as you remember. If it is almost time for your next dose, skip the missed dose and take the next one at the scheduled time. Do not take extra medicine to make up for the missed dose.

Can Dyazide be used during pregnancy or breastfeeding?

Dyazide should be used with caution during pregnancy and breastfeeding. Discuss the potential risks and benefits of using Dyazide with your healthcare provider.

What should I avoid while taking Dyazide?

Avoid taking other medications that may cause drowsiness, including alcohol, while taking Dyazide. Additionally, you should not use salt substitutes or potassium supplements without first speaking with your healthcare provider.


Additional information

Generic name:

Triamterene/ Hctz, Triamterene/Hctz




37.5/25mg, 50/25mg

Quantities Available:



Additional Information Book

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Online Pharmacies Canada has provided information from third parties intended to increase awareness and does not contain all the information about Dyazide (Triamterene/ Hctz). Talk to your doctor or other qualified medical practitioners for medical attention or advice, or if you have any concerns about Dyazide (Triamterene/ Hctz).