Brand-name prescription

Fosrenol

Rx Authorized generic Available

Fosrenol

lanthanum carbonate

Same medicine as Fosrenol, sold without the brand name by Prasco Laboratories.

Made by Patheon Manufacturing Services, which also makes Fosrenol.

Your strength

NDC to ask for

500 mgchewable tablet
- 66993-422-8511-digit: 66993-0422-8545 tablets per bottle
750 mgchewable tablet
- 66993-423-8511-digit: 66993-0423-8515 tablets per bottle
1000 mgchewable tablet
- 66993-424-8511-digit: 66993-0424-8510 tablets per bottle

Source: FDA · updated September 23, 2026

What to say at the pharmacy

“Can you fill my Fosrenol prescription with the authorized generic from Prasco Laboratories? The NDC is [your strength’s NDC]. Could you check the price and whether my plan covers it?”

Pick your strength above and your NDC will appear here.

Good to know

It may look different from Fosrenol (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.