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Brand-name prescription medicine

Tenormin

Generic name: Atenolol

FDA application holder: Twi Pharms

Official data, not advice

Everything here comes from the U.S. Food and Drug Administration (FDA): the NDC Directory, Drugs@FDA, the official labels and recall reports; pharmacy costs come from the Centers for Medicare & Medicaid Services (CMS). Each fact shows its source and date.

This page is not medical advice. Talk to your doctor or pharmacist before you start, stop or switch any medicine, including a switch between a brand and a generic.

In an emergency, call 911. If someone may have taken too much of a medicine, call Poison Help: 1‑800‑222‑1222.

Quick answers

What is Tenormin?
Tenormin is a brand name of Atenolol, a prescription medicine. The FDA NDC Directory lists 3 Tenormin products in 3 strengths and forms.
Who makes Tenormin?
Twi Pharms holds the FDA application for Tenormin (NDA018240, approved August 19, 1981).
Is there a generic or store brand of Tenormin?
Yes. The FDA NDC Directory lists 125 other products with the same active ingredients, strength and form as a Tenormin product, 125 of them generic. Ask your pharmacist whether one is right for you.
What do pharmacies pay for Tenormin?
CMS lists a National Average Drug Acquisition Cost (NADAC) for 1 Tenormin strength and form (see the table below). That is what pharmacies pay to buy it, not what you pay: your price depends on your insurance and your pharmacy.
Has Tenormin been recalled?
No recall linked to Tenormin products (by their NDC code or label) appears in the FDA enforcement reports we use.

What Tenormin is

Each Tenormin product as listed in the FDA NDC Directory, by active ingredient, strength and form, with its official label. “Same medicine, other names” counts the other products with exactly the same active ingredients, strength and form (generic versions, store brands and other brands); inactive ingredients can differ.

Atenolol · prescription medicine

Strength and formProduct namesSame medicine, other namesLabel
atenolol 100 mg
tablet (oral)
Tenormin 33 products, 22 companies DailyMed
atenolol 25 mg
tablet (oral)
Tenormin 44 products, 28 companies DailyMed
atenolol 50 mg
tablet (oral)
Tenormin 48 products, 28 companies DailyMed

Its page lists every product and company, the FDA label’s uses and boxed warning, approvals, shortages and recalls: Atenolol →

FDA approval

  • NDA: New Drug Application: how a new (usually brand-name) medicine is approved.
FDA applications of Tenormin products (Drugs@FDA)
ApplicationHolderFirst approvedProducts
NDA018240Twi PharmsAugust 19, 19813

What pharmacies pay (NADAC)

The National Average Drug Acquisition Cost (NADAC) is the average price U.S. retail pharmacies paid to buy one unit of a medicine (one tablet, one mL or one gram), from a monthly survey of pharmacy invoices by the Centers for Medicare & Medicaid Services (CMS). State Medicaid programs use it to pay pharmacies.

This is not the price you pay. What you pay depends on your insurance (copay or coinsurance), your pharmacy and any discounts, and pharmacies also charge for filling a prescription. Ask your pharmacist or your health plan what your price will be.

NADAC per unit for Tenormin, by strength and form
Strength and formGeneric or brandPharmacies pay
atenolol 50 mg
tablet
Brand: Tenormin $12.78 per tablet
Generic of the same strength and form: $0.0232 per tablet

NADAC list of November 4, 2026; these prices took effect on October 21, 2026. Shown only where a package’s NDC code matches the NADAC list exactly, and only for that exact strength and form: nothing is averaged across strengths. Strengths and forms not listed here have no NADAC price.

Source: NADAC (National Average Drug Acquisition Cost) 2026, data.medicaid.gov (CMS) →

Companies that list Tenormin

The company named on the package (holder, repackager or distributor), as listed in the FDA NDC Directory, with its number of Tenormin products.

Recalls

No recall linked to Tenormin products (by their NDC code or label) appears in the FDA enforcement reports.

Sources

  1. NDC Directory (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  2. Drugs@FDA (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  3. Drug labeling (SPL, openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 30, 2026, retrieved October 31, 2026
  4. Drug recall enforcement reports (openFDA) — U.S. Food and Drug Administration (FDA), FDA data exported October 27, 2026, retrieved October 31, 2026
  5. NADAC (National Average Drug Acquisition Cost) 2026 — Centers for Medicare & Medicaid Services (CMS), data.medicaid.gov, list of November 4, 2026, retrieved November 7, 2026

Which names get a brand page: a name the NDC Directory lists for a medicine, held by one company (the FDA application holder, or the company named on most of its products), that is not just a description, and that is not the only product of its medicine.

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