NDC codes

FDA NDC Directory
Product NDC (as listed)42291-509Labeler and product segments. Claims need a package NDC.
Product NDC at billing width42291-0509Add the package segment from the table below.
Package NDCs as listed with the FDA, and the 11-digit 5-4-2 form used on claims. The highlighted digit is the added leading zero.
Package NDC11-digit (billing)PackageCopy
42291-509-5042291050950500 TABLET in 1 BOTTLE (42291-509-50)Marketed from Mar 22, 2022

How the 11-digit form is made: The product segment has 3 digits, so one leading zero is added to it (5-3-2 → 5-4-2). Formatting the NDC does not by itself make it billable — the product, package and quantity must match what was dispensed or administered, and payer rules apply. Conversion rules

Product information

Brand name (proprietary)
Primidone
Generic name (nonproprietary)
primidone
Active ingredients
Primidone — 50 mg/1
Dosage form
Tablet
Route
Oral
Labeler
AvKARE
Product type
Prescription drug
Marketing category
ANDA — Abbreviated New Drug Application (generic)Application ANDA 040866
Marketing start
Listing expires
Other FDA classes
Decreased Central Nervous System Disorganized Electrical Activity (Physiologic effect)
Identifiers
Product ID 42291-509_51b5bdf4-6086-92aa-e063-6394a90abd1eSPL ID 51b5bdf4-6086-92aa-e063-6394a90abd1eSPL set ID e7a50a67-9653-463e-8c85-315b53f460c8RxCUI 96304, 198150UNII 13AFD7670Q
Pharmacologic class
Anti-epileptic Agent

Billing references

What Med-Code can say about coding this product, and where each statement comes from. Nothing here is inferred from the name alone.

HCPCS codeNo match

No HCPCS code in Med-Code's directory. Oral products like this are usually dispensed by a pharmacy and billed by NDC.

NDC on a medical claim

N442291050950 followed by a unit qualifier and the quantity

Package 42291-0509-50. Unit qualifiers: F2 (international unit), GR (gram), ME (milligram), ML (milliliter), UN (unit (each)). The qualifier and quantity depend on what was given. About the N4 qualifier

Product label

Current FDA label (SPL), effective .

Indications (excerpt from the label)

INDICATIONS AND USAGE Primidone tablets used alone or concomitantly with other anticonvulsants, are indicated in the control of grand mal, psychomotor, and focal epileptic seizures. It may control grand mal seizures refractory to other anticonvulsant therapy.

Excerpt only. Read the full label for complete information.

Full label on DailyMed (opens in a new tab)

Other NDCs under ANDA 040866

Products listed under the same FDA application: other strengths and forms, and repackagers who relabel the same product.

FDA NDC Directory listings under ANDA 040866
ProductStrengthForm · routeLabelerProduct NDC
PrimidonePrimidone 50 mg/1TabletOralAmneal Pharmaceuticals LLC65162-544
PrimidonePrimidone 250 mg/1TabletOralAmneal Pharmaceuticals LLC65162-545
PrimidonePrimidone 50 mg/1TabletOralNCS HealthCare of KY, LLC dba Vangard Labs0615-8206
PrimidonePrimidone 50 mg/1TabletOralAvPAK50268-686
PrimidonePrimidone 250 mg/1TabletOralAvPAK50268-687
PrimidonePrimidone 250 mg/1TabletOralAvKARE42291-511
PrimidonePrimidone 50 mg/1TabletOralAmneal Pharmaceuticals of New York LLC53746-544
PrimidonePrimidone 250 mg/1TabletOralAmneal Pharmaceuticals of New York LLC53746-545
PrimidonePrimidone 50 mg/1TabletOralBryant Ranch Prepack63629-7811

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