TRIAMTERENE-HYDROCHLOROTHIAZIDE 37.5-25 MG TB

What it is

TRIAMTERENE-HYDROCHLOROTHIAZIDE 37.5-25 MG TB is how the CMS NADAC file names this product. The FDA NDC Directory lists it as triamterene and hydrochlorothiazide.

FDA gives its dosage form as tablet and its route as oral.

FDA lists 6 labelers (the companies named on the label) for its NDCs, among them Actavis Pharma, Inc., Apotex Corp. and BluePoint Laboratories.

FDA lists it under 2 Established Pharmacologic Classes: Potassium-sparing Diuretic and Thiazide Diuretic.

The NADAC file of 2026-10-14 prices it under 12 NDCs (National Drug Codes); the FDA directory lists 11 of them.

NADAC classes it as a generic drug (rate-setting class G), and does not mark it as sold over the counter.

What pharmacies pay

Pharmacies pay $2.91 for 30 tablets (30 × $0.09694 per EA, rounded to the cent), by the CMS NADAC file of 2026-10-14; that price took effect on 2026-09-23. That is what pharmacies pay their suppliers, not what they charge you.

NADAC’s explanation code for it: 1, calculated from the most recently completed pharmacy survey.

What NADAC measures · Why 30 tablets · NADAC explanation codes

The 6 labelers

Other strengths, forms and brands

2 other products in the NADAC file share the FDA nonproprietary name triamterene and hydrochlorothiazide with TRIAMTERENE-HYDROCHLOROTHIAZIDE 37.5-25 MG TB.

CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17

Compared with its class

The middle of its 12 NDCs’ NADAC prices is $0.09694 per EA filed.

Of the 6 other products in FDA’s Potassium-sparing Diuretic class priced per EA, 6 have a higher middle NADAC price and 0 a lower one. The one in the middle is AMILORIDE HCL 5 MG TABLET, at $0.1901 per EA filed (eff. 2026-09-23).

Of the 68 other products in FDA’s Thiazide Diuretic class priced per EA, 58 have a higher middle NADAC price and 10 a lower one. The one in the middle is AMILORIDE HCL-HYDROCHLOROTHIAZIDE 5-50 MG TAB, at $0.44985 per EA filed (eff. 2026-09-23).

Prices are compared per unit, whatever the strength or dose, and a class is not a list of substitutes.

CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17

How the class comparison works

What Medicare paid

We don’t know yet; the card above says why.

Which Medicare figure OpenBill compares · How Part D is matched · How Part B is matched

What to ask at the counter

None of these figures is your price: what you pay depends on your pharmacy, your insurance, coupons and discounts.

• What is your cash price for 30 tablets? Is it lower than what I would pay through my insurance?
• These are questions about price, not medical advice. Do not change or stop a medicine without talking to your prescriber or pharmacist.