Brand-name prescription

Premarin

Rx Authorized generic Available

Premarin

estrogens, conjugated

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

Sold under the same FDA approval as Premarin.

Your strength

NDC to ask for

0.3 mgfilm-coated tablet
- 66993-295-0211-digit: 66993-0295-02100 tablets per bottle
0.45 mgfilm-coated tablet
- 66993-296-0211-digit: 66993-0296-02100 tablets per bottle
0.625 mgfilm-coated tablet
- 66993-297-0211-digit: 66993-0297-02100 tablets per bottle
0.9 mgfilm-coated tablet
- 66993-298-0211-digit: 66993-0298-02100 tablets per bottle
1.25 mgfilm-coated tablet
- 66993-299-0211-digit: 66993-0299-02100 tablets per bottle

Source: FDA · updated September 23, 2026

What to say at the pharmacy

“Can you fill my Premarin 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 Premarin (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.

Brand savings program

Pfizer Co-Pay Card for Premarin: commercially insured patients may save up to $120 per fill.

Official Premarin savings page

Run by the manufacturer. Brand coupons usually work only for the brand, not the authorized generic, and can’t be used with Medicare or Medicaid. Compare both prices.