OXYCONTIN Drug Patent Profile

When do Oxycontin patents expire, and what generic alternatives are available?

Oxycontin is a drug marketed by Knoa Pharma and is included in one NDA. There are fifteen patents protecting this drug and five Paragraph IV challenges.

This drug has two hundred and twenty-one patent family members in forty countries.

The generic ingredient in OXYCONTIN is oxycodone hydrochloride. There are nineteen drug master file entries for this compound. Thirty-seven suppliers are listed for this compound. Additional details are available on the oxycodone hydrochloride profile page.

DrugPatentWatch^® Litigation and Generic Entry Outlook for Oxycontin

A generic version of OXYCONTIN was approved as oxycodone hydrochloride by SPECGX LLC on June 30^th, 2004.

Summary for OXYCONTIN

International Patents:	221
US Patents:	15
Applicants:	1
NDAs:	1
Finished Product Suppliers / Packagers:	2
Raw Ingredient (Bulk) Api Vendors:	17
Clinical Trials:	61
Patent Applications:	2,175
Drug Prices:	Drug price information for OXYCONTIN
Drug Sales Revenues:	Drug sales revenues for OXYCONTIN
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for OXYCONTIN
What excipients (inactive ingredients) are in OXYCONTIN?	OXYCONTIN excipients list
DailyMed Link:	OXYCONTIN at DailyMed

See drug prices for OXYCONTIN

See drug sales revenues for OXYCONTIN

Recent Clinical Trials for OXYCONTIN

Identify potential brand extensions & 505(b)(2) entrants

Sponsor	Phase
University of Miami	Phase 2
3D Medicines	Phase 2
Medical College of Wisconsin	Phase 2

See all OXYCONTIN clinical trials

Pharmacology for OXYCONTIN

Drug Class	Opioid Agonist
Mechanism of Action	Full Opioid Agonists

Paragraph IV (Patent) Challenges for OXYCONTIN

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
OXYCONTIN	Extended-release Tablets	oxycodone hydrochloride	20 mg	022272	2	2010-10-29
OXYCONTIN	Extended-release Tablets	oxycodone hydrochloride	15 mg	022272	1	2010-10-28
OXYCONTIN	Extended-release Tablets	oxycodone hydrochloride	10 mg	022272	1	2010-10-25
OXYCONTIN	Extended-release Tablets	oxycodone hydrochloride	30 mg, 60 mg and 80 mg	022272	1	2010-10-18
OXYCONTIN	Extended-release Tablets	oxycodone hydrochloride	40 mg	022272	1	2010-10-04

US Patents and Regulatory Information for OXYCONTIN

OXYCONTIN is protected by fifteen US patents.

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Knoa Pharma	OXYCONTIN	oxycodone hydrochloride	TABLET, EXTENDED RELEASE;ORAL	022272-005	Apr 5, 2010		RX	Yes	Yes			Y
Knoa Pharma	OXYCONTIN	oxycodone hydrochloride	TABLET, EXTENDED RELEASE;ORAL	022272-007	Apr 5, 2010		RX	Yes	No			Y
Knoa Pharma	OXYCONTIN	oxycodone hydrochloride	TABLET, EXTENDED RELEASE;ORAL	022272-003	Apr 5, 2010		RX	Yes	No			Y

Expired US Patents for OXYCONTIN

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	Patent No.	Patent Expiration
Knoa Pharma	OXYCONTIN	oxycodone hydrochloride	TABLET, EXTENDED RELEASE;ORAL	022272-002	Apr 5, 2010
Knoa Pharma	OXYCONTIN	oxycodone hydrochloride	TABLET, EXTENDED RELEASE;ORAL	022272-001	Apr 5, 2010
Knoa Pharma	OXYCONTIN	oxycodone hydrochloride	TABLET, EXTENDED RELEASE;ORAL	022272-001	Apr 5, 2010

International Patents for OXYCONTIN

See the table below for patents covering OXYCONTIN around the world.

Country	Patent Number	Title	Estimated Expiration
Argentina	045352	FORMA DE DOSIFICACION A PRUEBA DE ABUSO
Argentina	045353	FORMA DE DOSIFICACION A PRUEBA DE ABUSO
Argentina	046994	PROCESO PARA LA PRODUCCION DE UNA FORMA DE DOSIFICACION A PRUEBA DE ABUSO

Supplementary Protection Certificates for OXYCONTIN

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
1685839	92292	Luxembourg		PRODUCT NAME: COMBINAISON D OXYCODONE EN TANT QUE COMPOSANT A ET DE NALOXONE EN TANT QUE COMPOSANT B SOUS TOUTES LES FORMES PROTEGES PAR LE BREVET DE BASE

OxyContin (oxycodone hydrochloride) Market Dynamics and Financial Trajectory: Revenue Drivers, Share Shifts, Patent/Exclusivity Fallout, and Competitive Risk

Last updated: July 21, 2026

OxyContin has remained the leading branded long-acting oxycodone despite sustained pressure from generic oxycodone ER, abuse-deterrent switching, payer controls, and ongoing opioid-litigation costs. The financial trajectory is dominated by (1) post-patent generic erosion of older ER strengths and dosage forms, (2) incremental growth from abuse-deterrent and formulary optimization, (3) settlement and remediation cash flows, and (4) margin compression driven by higher rebate and distribution economics as managed care tightened opioid formularies.

What has driven OxyContin market share and pricing power since generic entry?

OxyContin’s market dynamics track the balance between branded differentiation and the speed of generic substitution once exclusivities and patents expire for specific strengths and dosage forms.

How did generic erosion change the commercial mix?

OxyContin is an extended-release (ER) oxycodone product. Once relevant patents and exclusivities expired for particular strengths/formulations, generic ER oxycodone captured share through:

• Lower wholesale acquisition costs and broad payer substitution policies
• Pharmacy counter switching and mail-order preferred tiers
• Increased use of plan-level “step therapy” for opioid-naïve patients

The result is a shift from a product-by-product branded market to a strength- and formulation-specific branded premium story, where OxyContin retains pricing in pockets with higher barriers to substitution.

How have abuse-deterrent formulations affected demand?

A key commercial lever is reduced abuse deterrence. Abuse-deterrent technology does not eliminate diversion or illicit use, but it reduces extractability or changes physical properties, which can influence:

• Payer comfort and guideline adherence
• Channel messaging and health-system contracts
• Brand resilience in formularies compared with non-deterrent generic ER oxycodone

In practice, abuse-deterrent positioning improved OxyContin’s ability to hold share in certain high-volume channels while generic competitors expanded around it.

How did payer policies shift OxyContin’s volume?

Managed care and state policy changes tightened opioid prescribing and coverage practices, including:

• Prior authorizations and quantity limits for long-acting opioids
• Step therapy pathways favoring non-opioid therapies or immediate-release conversions before ER
• Increased scrutiny for chronic non-cancer pain prescribing

These measures tend to reduce addressable volume growth and increase commercial friction, making OxyContin more dependent on patient retention and existing prescriber relationships.

When does OxyContin lose exclusivity, and what does that mean for revenue?

OxyContin’s revenue outlook is governed by the timing of patent expiration and the ability of next-generation formulations to extend exclusivity effectively. For a drug with multiple strengths and formulations, exclusivity is not a single date; it occurs as different legal protections fall away.

What types of exclusivity matter for OxyContin ER?

Key legal and regulatory drivers typically include:

• Composition and method-of-use patents covering ER oxycodone and specific deterrent mechanisms
• Formulation and processing patents for controlled-release matrix and specific dosage characteristics
• Orange Book listing coverage by patent number and expiration by strength

What is the commercial effect of partial exclusivity expiration?

When legal protection drops for specific strengths, the market often shows:

• Rapid generic share shift in the affected strengths
• Slower share erosion in strengths still covered or where deterred formulations maintain differentiation
• Revenue decline with a lag, because contracts and substitution mechanics can take quarters to fully update across channels

For investors and licensors, the implication is that “brand durability” is strength- and contract-dependent, not uniform across the portfolio.

What is OxyContin’s financial trajectory: revenue trend, margin profile, and cost pressures?

OxyContin’s financial path has been shaped by two competing forces: branded price/mix resilience in specific niches versus volume drag from generic penetration and tougher prescribing economics.

How do litigation and settlements impact annual earnings?

OxyContin and other opioid products have been subject to large-scale litigation. Financial impact comes through:

• Cash settlement payments and accrued liabilities
• Legal costs and related insurance recoveries
• Ongoing remediation programs and compliance spending

These costs can depress operating margins even when sales remain stable for periods, because they do not scale directly with units sold.

How does channel economics compress profitability?

As generics expand, OxyContin faces:

• Increased rebate pressures to maintain formulary placement
• Wholesale and distributor margin adjustments
• Higher marketing spend to preserve prescriber loyalty as substitution risk rises

The net result is usually a margin squeeze after share erosion begins, even if revenue does not drop immediately.

What does the long-term trend typically look like?

In branded opioid ER products with eventual generic competition, the long-run pattern is:

• Higher plateau period while deterrent and remaining protections hold
• Step-down after major patent clusters expire
• Continued revenue decline as additional strengths lose protection and payer restrictions deepen

For OxyContin, that pattern is reinforced by the litigation-driven cost base and regulatory scrutiny of long-acting opioid prescribing.

Which business segments and geographies most affect OxyContin revenue?

OxyContin’s commercial performance is primarily US-led due to the scale of prescribing, reimbursement systems, and litigation dynamics. Any non-US strategy tends to be smaller and can have different regulatory requirements for abuse-deterrent claims.

How does the US payer mix influence revenue volatility?

US revenue volatility usually tracks:

• Medicaid and Medicare Part D plan formularies
• Large PBMs’ preferred opioid tiers
• Managed care controls on prior authorization and day supply

Because PBM contracts can change quickly, branded share can swing when OxyContin loses tier status in one large channel.

How do settlement agreements change OxyContin’s competitive landscape?

Settlements affect more than cost. They also influence commercial behavior, including:

• Prescriber education and compliance programs
• Claims practices and promotional constraints
• Supply chain and distribution adjustments to meet agreed standards

These operational shifts can reduce short-term flexibility in marketing and distribution, but they can also stabilize demand by aligning with payer and regulator expectations.

What patent estate strength does OxyContin have, and what gaps create generic entry risk?

A full patent estate analysis requires Orange Book and litigation docket mapping by strength and formulation. At a high level, OxyContin’s brand endurance has come from layered patent coverage on:

• ER oxycodone compositions and release mechanisms
• Abuse-deterrent formulation characteristics
• Method-of-use and/or clinical claims tied to deterrence or patient management

The generic entry risk emerges when these layers expire for specific strengths, or when challengers can design around deterrent features while maintaining therapeutic equivalence.

How does OxyContin compare with other oxycodone ER brands on market risk?

In the long-acting oxycodone ER category, risk differs by:

• Strength-by-strength protection coverage
• Whether the product is abuse-deterrent
• Payer adoption and PBM placement
• Litigation and compliance cost exposure

OxyContin typically faced the steepest generic substitution pressure because of its large installed base and scale, which makes it an obvious target once legal barriers fall.

What generic entry scenarios could be most damaging to OxyContin revenue?

The most damaging scenarios are those that combine rapid strength coverage with broad payer acceptance:

• Multiple strength expirations in a short window that expand generic availability materially
• Launch of generics that minimize deterred-formulation advantages
• Payer tier resets that favor generics at the same time as legal barriers fall

Because US reimbursement can move quickly after interchangeability and coverage policy updates, the revenue impact can front-load once generic substitution accelerates.

Key Takeaways

• OxyContin’s revenue and earnings trajectory is shaped by strength- and formulation-specific patent and exclusivity cliffs, not a single uniform end date.
• Abuse-deterrent formulation positioning has supported branded resilience in select payer and channel environments, slowing but not preventing generic substitution.
• The dominant financial headwinds are generic erosion, rebate and tier pressure as formularies tighten, and opioid litigation and remediation cash flows that reduce operating margin.
• The competitive threat is concentrated in windows where multiple strengths lose legal protection and payer policy quickly shifts toward generic ER oxycodone.

FAQs

1. How do prior authorization and quantity limits affect OxyContin ER sales compared with immediate-release oxycodone?
2. What role does PBM formulary tier placement play in OxyContin’s quarterly revenue volatility?
3. How do abuse-deterrent claims influence payer adoption of OxyContin versus generic ER oxycodone?
4. What litigation cost components most affect OxyContin’s earnings beyond legal fees?
5. What commercial signals historically precede strength-specific generic launches of oxycodone ER?

References

1. Bloomberg Law. (n.d.). Opioid litigation and related settlement reporting for branded ER oxycodone products.
2. FDA. (n.d.). Orange Book: Approved Drug Products with Therapeutic Equivalence Evaluations.
3. US Securities and Exchange Commission (SEC). (n.d.). Mallinckrodt/ Purdue and related issuer filings discussing OxyContin commercialization and legal costs (10-K/10-Q).

DrugChatter Q&A for OXYCONTIN

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