Brand-name prescription

Dyrenium

Rx Authorized generic Available

Dyrenium

triamterene

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

Sold under the same FDA approval as Dyrenium.

Your strength

NDC to ask for

50 mgcapsule
- 66993-831-0211-digit: 66993-0831-02100 capsules per bottle
100 mgcapsule
- 66993-832-0211-digit: 66993-0832-02100 capsules per bottle

Source: FDA · updated September 23, 2026

What to say at the pharmacy

“Can you fill my Dyrenium 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 Dyrenium (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.