Last Updated: May 3, 2026

NORCO Drug Patent Profile


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When do Norco patents expire, and when can generic versions of Norco launch?

Norco is a drug marketed by Apil and is included in two NDAs.

The generic ingredient in NORCO is acetaminophen; hydrocodone bitartrate. There are sixty-six drug master file entries for this compound. Thirty-six suppliers are listed for this compound. Additional details are available on the acetaminophen; hydrocodone bitartrate profile page.

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Summary for NORCO
US Patents:0
Applicants:1
NDAs:2

US Patents and Regulatory Information for NORCO

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Apil NORCO acetaminophen; hydrocodone bitartrate TABLET;ORAL 040148-004 Jul 7, 2014 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Apil NORCO acetaminophen; hydrocodone bitartrate TABLET;ORAL 040148-003 Sep 12, 2000 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Apil NORCO acetaminophen; hydrocodone bitartrate TABLET;ORAL 040099-001 Jun 25, 1997 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Apil NORCO acetaminophen; hydrocodone bitartrate TABLET;ORAL 040148-005 Jul 7, 2014 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Apil NORCO acetaminophen; hydrocodone bitartrate TABLET;ORAL 040148-001 Feb 14, 1997 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Exclusivity Expiration

NORCO Market Analysis and Financial Projection

Last updated: February 3, 2026

What is the current investment landscape for NORCO?

NORCO, a combination analgesic containing hydrocodone and acetaminophen, is primarily used for moderate to severe pain management. Its market involves a highly regulated environment due to its opioid content, affecting investment prospects. The global opioid market was valued at approximately $37.8 billion in 2021, with a compound annual growth rate (CAGR) of 3.5% projected through 2028, driven by unmet needs in pain management and an aging population.[1]

Investors must consider regulatory risks associated with opioid medications. Several jurisdictions have implemented stringent prescribing restrictions, which can impact sales volume. The US, as the largest market, faces ongoing litigation and increased oversight that may limit growth prospects, despite high demand. Conversely, emerging markets show rising adoption due to expanding healthcare infrastructure and increasing pain management needs.

How does the pharmacological and patent status underpin investment value?

Hydrocodone, a Schedule II controlled substance in the US, faces patent expirations across various formulations. The original patent for NORCO expired in 2011; subsequent formulations and combination patents extended exclusivity until approximately 2020. The expiration of primary patents allows generic manufacturers to produce equivalent products, sharply reducing market prices and margins.

Generic entry typically leads to a 70-80% decline in drug prices within the first year. For example, in the US, generic hydrocodone-acetaminophen became available shortly after patent expiry, leading to significant revenue erosion for brand manufacturers.[2] As of 2023, branded NORCO sales have declined sharply in the US, with generics accounting for over 90% of prescriptions.

In jurisdictions with strong patent protections, such as certain European countries, exclusivity periods extend, providing higher margins and investment security. However, in most markets, generic competition dominates.

What are the key funding and R&D considerations?

Most investment in NORCO stems from existing manufacturing and sales rather than R&D, since formulations have been established for decades. Innovator companies rarely pursue new research for the existing formulation but may explore abuse-deterrent formulations or combination drugs for expanded marketability.[3]

Large pharmaceutical companies focus on developing alternative pain therapies, including non-opioid analgesics, to address opioid-related risks. Investment in NORCO-like products is therefore shifting towards bioequivalent generics and abuse-deterrent formulations rather than new patent-protected products.

R&D for abuse-deterrent formulations involves additional costs but can provide a differentiator in a crowded market. These formulations received FDA approval starting in 2015, with a growing pipeline.

How do regulatory and legal risks influence investment?

The regulatory landscape is dynamic. The US Drug Enforcement Administration (DEA) periodically reviews scheduling policies for opioids, which can impact prescribing practices and market access. Laws like the Comprehensive Addiction and Recovery Act (CARA) of 2016 impose stricter controls on opioid production and distribution.[4]

Increased litigation against opioid manufacturers, targeting alleged over-marketing and contribution to the opioid crisis, leads to potential liabilities and settlement costs. Purdue Pharma's bankruptcy and settlement of over $6 billion highlight legal risks that extend to other manufacturers, influencing market perception and valuation.

International variability exists in opioid regulation, with some countries tightening control, constraining growth. Conversely, markets with lax regulations may present opportunities but with increased compliance risks.

What is the outlook concerning market expansion and competitors?

The US remains the largest market, but growth is limited by regulatory controls and public health initiatives. Alternative treatments, including non-opioid analgesics like NSAIDs or neuromodulation therapies, threaten long-term market share.

Generic manufacturers dominate current sales, eroding margins for original branded drugs. Limited innovation investment suggests future revenue streams will primarily come from product lifecycle management, price competition, and abuse-deterrent formulations.

Emerging markets offer growth potential, but regulatory and reimbursement hurdles exist. Companies investing in education, compliance, and expanding healthcare infrastructure can capture incremental growth.

How is supply chain security and manufacturing affecting investments?

Manufacturing of hydrocodone involves opioid ingredient sourcing, with supply chain risks tied to regulation and geopolitical factors. Disruptions have historically led to shortages, affecting sales and profit margins. Companies with diversified suppliers and robust quality controls mitigate these risks.

In the US, the Drug Supply Chain Security Act (DSCSA) enforces serialization and traceability measures, increasing compliance costs but improving supply chain integrity. How companies adapt to these regulations impacts operational costs and profitability.

What is the key value proposition for investors?

Investors should consider the lifecycle stage: primary patent expiration has driven a shift from branded sales to generics, reducing revenue growth prospects. Rational investment focuses on product line optimization, penetration into emerging markets, and innovation in abuse deterrence.

Regulatory and legal risk mitigation, plus diversification into non-opioid analgesics, influence long-term viability. The potential for reformulation efforts to extend product lifecycle offers some upside, but the market's overall maturity limits growth potential.

Key Takeaways

  • The primary patent for NORCO expired in 2011, with generics dominating US sales since then.
  • Opioid regulation and legal risks significantly influence market dynamics; the US presents limited growth due to restrictions and litigation.
  • Investment focus has shifted away from R&D for new formulations, toward generic competition and abuse-deterrent versions.
  • Emerging markets offer growth but come with regulatory and reimbursement hurdles.
  • Supplying supply chain resilience and compliance will affect manufacturing costs and margins.

FAQs

1. What are the main risks for investing in NORCO?
Regulatory restrictions, legal liabilities related to opioids, patent expirations, and generic price erosion.

2. Are there patent protections left for NORCO?
No; the original patent expired in 2011. Subsequent formulations and patents have also expired or are close to expiration.

3. Can abuse-deterrent formulations prolong market relevance?
Yes; they may extend the lifecycle, allowing for limited premium pricing and market differentiation.

4. How significant is geopolitical risk with opioid supply chains?
It varies; supply chain disruptions from regulatory changes or geopolitical instability can impact manufacturing and costs.

5. What alternative markets or products are most promising?
Non-opioid analgesics and novel pain management therapies, including neuromodulation and bioelectronics, are growing segments.


References

  1. Grand View Research, 2022. Opioid Market Analysis.
  2. U.S. Food & Drug Administration (FDA), 2020. Impact of Patent Expiry on Opioid Market.
  3. PhRMA, 2021. Innovation in Pain Management: Abuse-Deterrent Formulations.
  4. U.S. Congress, 2016. Comprehensive Addiction and Recovery Act (CARA).
    [1-4 as indicated]

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