BiDil vs. its authorized generic and generics

How to pay the least

Ask for the cash price

Generic hydralazine and isosorbide dinitrate

Only Amazon Pharmacy posts a price for hydralazine and isosorbide dinitrate 37.5 mg / 20 mg, 30 tablets, and it’s for members. Pharmacies pay about $20 for 30 tablets; cash prices are higher. Ask two or three.

Ask your pharmacy: “What’s your cash price for generic hydralazine and isosorbide dinitrate 37.5 mg / 20 mg, 30 tablets?”Find pharmacies near you
Ask one or two other pharmacies too. Cash prices for the same generic can differ a lot from store to store.

With a membership $22.07 for 30 tablets from Amazon Pharmacy, by mail ($139 a year).

Open Amazon Pharmacy

A regular generic has the same active ingredient as BiDil, and the FDA requires it to work the same way.

Compare every option

Brand nameBiDil

Authorized generichydralazine and isosorbide dinitrate

Regular generichydralazine and isosorbide dinitrate

What you’d pay

At least$130for 30 tablets; pharmacies pay this

Cash priceAsk the pharmacyUsually among the lowest

Cash priceMembers only$22.07 for 30 tablets at Amazon Pharmacy

Same as BiDil?

The original

Same medicine

Same active ingredientFillers and dyes can differ

Brand nameNo maker’s card

We didn’t find a savings card or cash price from BiDil’s maker. Ask the pharmacy for BiDil’s cash price. With insurance, ask what your plan charges.

Authorized genericThe NDC to ask for

The same medicine as BiDil, without the brand name. Give the pharmacy its NDC to get it.

hydralazine and isosorbide dinitrate

Sold by

Wilshire PharmaceuticalsMade by Lannett, which also makes BiDil

NDC to ask for

37.5 mg / 20 mgtablet
- 52536-006-0911-digit: 52536-0006-0990 tablets per bottle

Source: FDA, updated October 30, 2026

What to say at the pharmacy

“Before you fill my BiDil, can you tell me what I’d pay for the brand, for the authorized generic from Wilshire Pharmaceuticals (NDC 52536-006-09), and for a regular generic?”

Paying cash? Ask for each one’s cash price. With insurance, ask what your plan charges for each.

Brand and authorized generic labels

Official labels and ingredient lists from DailyMed (U.S. National Library of Medicine).

Same active ingredient. Only the coloring is listed differently, so it may look different.

Authorized generic package label from Wilshire Pharmaceuticals — Authorized genericWilshire Pharmaceuticals

See the ingredients

Active: hydralazine hydrochloride 37.5 mg · isosorbide dinitrate 20 mg

Inactive, on both labels:

Anhydrous lactose
FD&C Yellow No. 6
Hypromellose
Magnesium stearate
Microcrystalline cellulose
Polyethylene glycol
Polysorbate 80
Silicon dioxide
Sodium starch glycolate type A potato
Titanium dioxide

Only on BiDil’s label: Aluminum oxide

Regular genericWhere to buy it

Pharmacies’ own cash prices for generic hydralazine and isosorbide dinitrate, lowest first.

Delivered

Delivered: Amazon Pharmacy $22.07for 30 tablets37.5 mg / 20 mgPrime members only · $139 a year · Free delivery · Prime price: limits on some medicines if you're over 65 or have Medicare, Medicaid or TRICARE

From each pharmacy’s own site, read November 2, 2026. Confirm the price before you fill.

About these prices

Prices change, can differ by store and state, and may depend on the strength and how many you take. With insurance, ask what your plan charges; it can be less.

Regular genericWho makes it

2 companies sell a generic of BiDil that the FDA rates a substitute. A pharmacy fills whichever one it stocks. To get a certain maker, ask for it by name; most pharmacies can order it in a day or two.

i3 Pharmaceuticals37.5 mg / 20 mg

Has lactose · Has a dye: FD&C Yellow No. 6 · Made by Pharmazone

How it looks, what’s in it, NDCs

20 mg / 37.5 mg Orange, round, 8 mm, marked “I3 / 1 / 2”

Package NDC
Bottle of 90 72319-012-03
Bottle of 180 72319-012-18

Inactive ingredients: titanium dioxide, polysorbate 80, magnesium stearate, anhydrous lactose, microcrystalline cellulose, sodium starch glycolate type a potato, FD&C Yellow No. 6, polyethylene glycol, hypromellose, silicon dioxide
FDA label
Ingenus Pharmaceuticals37.5 mg / 20 mg

Has lactose · Has dyes: FD&C Blue No. 1 aluminum lake, FD&C Red No. 40, FD&C Yellow No. 6

How it looks, what’s in it, NDCs

37.5 mg / 20 mg Colored, oval, 9 mm, marked “I / 4”

Package NDC
Bottle of 90 50742-246-90
Bottle of 180 50742-246-18

Inactive ingredients: anhydrous lactose, microcrystalline cellulose, sodium starch glycolate type a potato, silicon dioxide, magnesium stearate, hypromellose, FD&C Yellow No. 6, polyethylene glycol, mannitol, stearic acid, triacetin, FD&C Red No. 40, FD&C Blue No. 1 aluminum lake
FDA label

Package	NDC
Bottle of 90	72319-012-03
Bottle of 180	72319-012-18

Package	NDC
Bottle of 90	50742-246-90
Bottle of 180	50742-246-18

Who sells it: FDA and Medicaid records, updated weekly. Each maker’s page, card and program is from its own site.

What it’s used for

Heart failure in self-identified Black patients

What the FDA label says

BiDil is a combination of isosorbide dinitrate, a nitrate vasodilator, and hydralazine hydrochloride, an arteriolar vasodilator, indicated for:

the treatment of heart failure as an adjunct therapy to standard therapy in self-identified black patients to improve survival, prolong time to hospitalization for heart failure and to improve patient-reported functional status

Limitations of use:

There is little experience in patients with NYHA class IV heart failure

Source: the FDA label for BiDil (Azurity Pharmaceuticals, Inc.), November 30, 2025. Full label on DailyMed

Good to know

It may look different from BiDil (color, shape, or markings). That’s normal for an authorized generic.
If your prescription says “dispense as written,” the pharmacy needs your prescriber’s OK to give you the authorized generic.
Cash prices can differ a lot from one pharmacy to the next, so it can pay to ask two. With insurance, what you pay depends on your plan.
If your pharmacy doesn’t stock it, they can often order it within a day or two.
Don’t stop or change a medicine without talking to your pharmacist or prescriber.

Prices checked November 2, 2026. Prices change: confirm with the pharmacy before you fill. drugalt.com/drug/bidil/