ISOSORBIDE-HYDRALAZINE 20-37.5 MG TABLET

What it is

ISOSORBIDE-HYDRALAZINE 20-37.5 MG TABLET is how the CMS NADAC file names this product. The FDA NDC Directory lists it as “isosorbide dinitrate and hydralazine hydrochloride” and “hydralazine hydrochloride and isosorbide dinitrate”, as its NDCs’ listings variously write the nonproprietary name.

FDA gives its dosage form as “tablet” and “tablet, film coated” and its route as oral.

Its labelers, the companies named on the label, are Ingenus Pharmaceuticals, LLC, Wilshire Pharmaceuticals and i3 Pharmaceuticals, LLC.

FDA lists it under 2 Established Pharmacologic Classes: Arteriolar Vasodilator and Nitrate Vasodilator.

The NADAC file of 2026-10-14 prices it under 3 NDCs (National Drug Codes).

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 $21.41 for 30 tablets (30 × $0.7138 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 codes for it: 1, calculated from the most recently completed pharmacy survey; 6, the CMS Covered Outpatient Drug Product File S/I/N drug category was not applied when grouping drugs for the calculation.

What NADAC measures · Why 30 tablets · NADAC explanation codes

All 3 NDCs

• 50742-0246-90 · Ingenus Pharmaceuticals, LLC · $0.7138 per EA · eff. 2026-09-23 filed
• 52536-0006-09 · Wilshire Pharmaceuticals · $0.7138 per EA · eff. 2026-09-23 filed
• 72319-0012-03 · i3 Pharmaceuticals, LLC · $0.7138 per EA · eff. 2026-09-23 filed

Other strengths, forms and brands

1 other product in the NADAC file shares an FDA nonproprietary name with ISOSORBIDE-HYDRALAZINE 20-37.5 MG TABLET.

Part D is one average per brand and generic name, over every strength and form.

CMS NADAC · nadac-national-average-drug-acquisition-cost-20261014.csv · eff. 2026-02-18, 2026-09-23 · as of 2026-10-14 · retrieved 2026-10-17

Medicare Part D · DSD_PTD_RY26_P04_V10_DY24_BGM.csv · eff. 2024-01-01 to 2024-12-31 · as of 2026-06-25 · retrieved 2026-10-18

Compared with its class

The middle of its 3 NDCs’ NADAC prices is $0.7138 per EA filed.

Of the 7 other products in FDA’s Arteriolar Vasodilator class priced per EA, 1 has a higher middle NADAC price and 6 a lower one. The one in the middle is HYDRALAZINE 100 MG TABLET, at $0.0717 per EA filed (eff. 2026-09-23).

Of the 19 other products in FDA’s Nitrate Vasodilator class priced per EA, 7 have a higher middle NADAC price and 12 a lower one. The one in the middle is ISOSORBIDE DINITRATE 30 MG TAB, at $0.2808 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.