Brand-name prescription

BiDil

Rx Authorized generic Available

BiDil

hydralazine and isosorbide dinitrate

Same medicine as BiDil, sold without the brand name by Wilshire Pharmaceuticals.

Made by Lannett, which also makes BiDil.

NDC to ask for

37.5 mg / 20 mgfilm-coated tablet
- 52536-006-0911-digit: 52536-0006-0990 tablets per bottle

Source: FDA · updated September 23, 2026

What to say at the pharmacy

“Can you fill my BiDil prescription with the authorized generic from Wilshire Pharmaceuticals? The NDC is 52536-006-09. Could you check the price and whether my plan covers it?”

Good to know

It may look different from BiDil (color, shape, or markings). That’s normal for an authorized generic.
Price and coverage depend on your pharmacy and plan. Ask them to price both the brand and this NDC.
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.