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Two medicines, side by side

Hydrochlorothiazide/triamterene vs propranolol

Hydrochlorothiazide/triamterene and propranolol are both labeled for high blood pressure. Drugs@FDA records approvals of hydrochlorothiazide/triamterene since 1965 and of propranolol since 1967. Pharmacies paid $0.0969 per triamterene-hydrochlorothiazide 37.5-25 mg tablet and $0.0493 per propranolol 20 mg tablet (NADAC, October 7, 2026); the strengths differ, so the two prices are not like for like. In FDA's classes, hydrochlorothiazide/triamterene is a potassium-sparing diuretic and propranolol a beta-adrenergic blocker.

Check it at the source: the hydrochlorothiazide/triamterene FDA label on DailyMed (effective February 17, 2026); the propranolol FDA label on DailyMed (effective January 15, 2026).

Highlights of the hydrochlorothiazide and triamterene record

Hydrochlorothiazide and triamterene (Dyazide) · label of February 17, 2026

Used for

From the label: indications

This fixed combination drug is not indicated for the initial therapy of edema or hypertension except in individuals in whom the development of hypokalemia cannot be risked. Triamterene and hydrochlorothiazide tablets are indicated for the treatment of hypertension or edema in patients who develop hypokalemia on hydrochlorothiazide alone. […]

On the market

Earliest approval on file
December 2, 1965
Generic labelers
24 labelers
Pharmacy cost
$0.0969 per tablet

Supply and safety

Shortage
No current entry
Recalls
5

Highlights of the propranolol record

Propranolol (Inderal) · label of January 15, 2026

Used for

From the label: indications

Hypertension Propranolol hydrochloride tablets are indicated in the management of hypertension. It may be used alone or used in combination with other antihypertensive agents, particularly a thiazide diuretic. Propranolol hydrochloride tablets are not indicated in the management of hypertensive emergencies. […]

On the market

Earliest approval on file
November 13, 1967
Generic labelers
42 labelers
Pharmacy cost
$0.0493 per tablet

Supply and safety

Shortage
In shortage
Recalls
4

Source: FDA drug labels via openFDA (Hydrochlorothiazide/triamterene label of February 17, 2026, Propranolol label of January 15, 2026); NDC Directory, Drugs@FDA, NADAC, FDA shortages and recalls (October 8, 2026)

How do hydrochlorothiazide/triamterene and propranolol differ on the record?

In FDA's classes, hydrochlorothiazide/triamterene is a potassium-sparing diuretic and propranolol a beta-adrenergic blocker.

Generics: hydrochlorothiazide/triamterene since 1987; propranolol since 1985 (Drugs@FDA).

Hydrochlorothiazide/triamterenePropranolol
Labeled forHigh blood pressure, Edema (fluid retention)High blood pressure, Angina, Atrial fibrillation, Migraine
Pharmacologic classPotassium-sparing Diuretic, Thiazide Diureticbeta-Adrenergic Blocker
How it works (label)n/aMechanism of Action The mechanism of the antihypertensive effect of propranolol has not been established.
Half-life (label)n/aThe plasma half-life of propranolol is from 3 to 6 hours.
Earliest approval on file (Drugs@FDA)December 2, 1965November 13, 1967
First generic approvedDecember 8, 1987July 30, 1985
Generic labelers (NDC)24 labelers42 labelers
Pharmacy cost (NADAC, each one's most listed form; strengths differ)$0.0969 per tablet (Triamterene-hydrochlorothiazide 37.5-25 mg tablet)$0.0493 per tablet (Propranolol 20 mg tablet)
12-month price change+6%-17%
Boxed warningNoNo
Shortage nowNo current entryIn shortage
Recalls recorded54
FAERS reports (a report is not proof of cause; counts follow how widely a medicine is used)6,10971,660
DEA schedulenonenone

Source: Drugs@FDA, FDA NDC Directory, CMS NADAC of October 7, 2026, FDA shortages and recalls, FAERS via openFDA (FDA files October 8, 2026)

What next?

Alternatives to hydrochlorothiazide/triamterene
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