What is the brand name for Hydrochlorothiazide / Triamterene?
The most common brand name for Hydrochlorothiazide / Triamterene is Dyazide / Maxzide.
PTCE Top 200 · #115
Hydrochlorothiazide / Triamterene
Dyazide / Maxzide
Hydrochlorothiazide / Triamterene is the generic name for the brand-name drug Dyazide. It is a thiazide + k-sparing diuretic used to treat hypertension, edema. On the PTCE Top 200 drug list, Hydrochlorothiazide / Triamterene ranks #115 and is one of the most frequently tested cardiovascular medications — commonly quizzed on its brand–generic pair, drug class, and key side effects.
| Generic name | Hydrochlorothiazide / Triamterene |
|---|---|
| Brand name(s) | Dyazide / Maxzide |
| Drug class | Thiazide + K-sparing diuretic |
| Class group | Cardiovascular |
| Common use | hypertension, edema |
| DEA schedule | Unscheduled |
| Availability | Prescription only (Rx) |
What is Hydrochlorothiazide / Triamterene used for?
Combination diuretic used for hypertension and edema (thiazide + potassium‑sparing) to lower BP and reduce fluid while limiting potassium loss.
What drug class is Hydrochlorothiazide / Triamterene?
Hydrochlorothiazide / Triamterene is a Thiazide + K-sparing diuretic in the Cardiovascular group. Knowing the class is the fastest way to predict its uses, side effects, and the brand↔generic pairs the PTCE tests.
Common side effects of Hydrochlorothiazide / Triamterene
- arrow_rightDizziness
- arrow_rightFrequent urination
- arrow_rightElectrolyte changes
- arrow_rightHigh potassium (hyperkalemia)
- arrow_rightHigh uric acid/gout
- arrow_rightPhotosensitivity
Major interactions
- arrow_rightACE inhibitors/ARBs or potassium supplements/salt substitutes ↑ hyperkalemia risk (due to triamterene)
- arrow_rightNSAIDs may ↓ diuretic/antihypertensive effect and worsen renal function
- arrow_rightLithium levels may increase → toxicity
- arrow_rightOther drugs affecting electrolytes (digoxin, antiarrhythmics): monitor K+/Mg2+
Is Hydrochlorothiazide / Triamterene a controlled substance?
No. Hydrochlorothiazide / Triamterene is not a federally controlled substance (it is unscheduled by the DEA).
How to remember Hydrochlorothiazide / Triamterene (PTCE mnemonic)
DY-azide pairs DIuretics — HCTZ (wastes K+) + triamterene (spares K+) = net K+ neutral. Still monitor K+ + renal; sulfa allergy from HCTZ.
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PTCE exam tip
Dyazide pairs potassium-WASTING HCTZ with potassium-SPARING triamterene — identifying both components and the potassium logic is the exam point.
Hydrochlorothiazide / Triamterene FAQ
What is Hydrochlorothiazide / Triamterene used for?
Hydrochlorothiazide / Triamterene is used to treat hypertension, edema. Combination diuretic used for hypertension and edema (thiazide + potassium‑sparing) to lower BP and reduce fluid while limiting potassium loss.
What drug class is Hydrochlorothiazide / Triamterene?
Hydrochlorothiazide / Triamterene is a Thiazide + K-sparing diuretic (Cardiovascular group).
Is Hydrochlorothiazide / Triamterene a controlled substance?
No. Hydrochlorothiazide / Triamterene is not a federally controlled substance (it is unscheduled by the DEA).
Related drugs in the Cardiovascular group
Drill Hydrochlorothiazide / Triamterene the way the PTCE asks it
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Last reviewed June 25, 2026. Educational use only — not medical advice. Verify clinical specifics with your pharmacist or a current label source such as DailyMed. RxReflex is not affiliated with or endorsed by the Pharmacy Technician Certification Board (PTCB).