Last Updated: May 3, 2026

PHENAPHEN W/ CODEINE NO. 2 Drug Patent Profile


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Which patents cover Phenaphen W/ Codeine No. 2, and when can generic versions of Phenaphen W/ Codeine No. 2 launch?

Phenaphen W/ Codeine No. 2 is a drug marketed by Robins Ah and is included in one NDA.

The generic ingredient in PHENAPHEN W/ CODEINE NO. 2 is acetaminophen; codeine phosphate. There are sixty-six drug master file entries for this compound. Twenty-three suppliers are listed for this compound. Additional details are available on the acetaminophen; codeine phosphate profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Phenaphen W/ Codeine No. 2

A generic version of PHENAPHEN W/ CODEINE NO. 2 was approved as acetaminophen; codeine phosphate by SUN PHARM INDS LTD on December 31st, 1969.

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Summary for PHENAPHEN W/ CODEINE NO. 2

US Patents and Regulatory Information for PHENAPHEN W/ CODEINE NO. 2

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Robins Ah PHENAPHEN W/ CODEINE NO. 2 acetaminophen; codeine phosphate CAPSULE;ORAL 084444-001 Approved Prior to Jan 1, 1982 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

Market Dynamics and Financial Trajectory for PHENAPHEN W/ CODEINE NO. 2

Last updated: January 9, 2026

Executive Summary

PHENAPHEN W/ CODEINE NO. 2 is a prescription opioid combination product primarily used for moderate to severe pain relief. Its formulation combines acetaminophen and codeine, regulated as a Schedule III controlled substance in many jurisdictions, including the United States. The drug's market landscape is shaped by regulatory policies, opioid dependence concerns, competition, and evolving pain management standards. This report analyzes current market trends, regulatory dynamics, sales projections, and competitive positioning to inform stakeholders about PHENAPHEN's future financial trajectory.


Overview of PHENAPHEN W/ CODEINE NO. 2

Attribute Details
Active ingredients Acetaminophen + Codeine (2 mg per 15 mg of acetaminophen)
Indication Moderate to severe pain
Formulation Oral tablets
Regulatory status Schedule III (U.S.), Prescription-only
Common brand names PHENAPHEN W/ CODEINE NO. 2 (or generic equivalents)

Note: The formulation is typically prescribed for brief periods due to dependency risks associated with codeine.


Market Dynamics

1. Regulatory Landscape

The regulatory environment profoundly influences the market for PHENAPHEN W/ CODEINE NO. 2. Since the Controlled Substances Act (CSA) classifies codeine-containing products as Schedule III, prescribing is subject to limitations:

  • Abuse-Deterrent Policies: Increasing restrictions on opioid prescriptions aim to curb misuse. The CDC issued guidelines (2016) emphasizing cautious opioid prescribing, leading to a 16% decline in opioid prescriptions from 2016 to 2020 [1].

  • Rescheduling Considerations: Some jurisdictions contemplate rescheduling codeine to Schedule II or banning OTC sales, which could impact supply and demand.

  • Reimbursement & Insurance: Payers are scrutinizing coverage for opioids, influencing prescription patterns.

2. Epidemiological Trends

  • The global burden of pain management fuels demand for analgesics, but opioid-specific regulation restricts options.

  • Opioid prescribing rates have plateaued or declined in some regions due to the opioid epidemic, affecting sales volumes.

  • Statistics:

    • In the U.S., opioid prescriptions declined from 58.7 per 100 persons in 2012 to 51.4 in 2019 [2].
    • Despite reductions, opioids remain prescribed for acute pain, with an estimated 100 million prescriptions annually for combinations like PHENAPHEN.

3. Competitive Landscape

PHENAPHEN W/ CODEINE NO. 2 faces competition from:

Competitors Formulations Strengths Weaknesses
Generic acetaminophen-codeine combinations Various, including No. 2 formulations Lower cost; widespread availability Regulatory restrictions
Non-opioid analgesics NSAIDs, acetaminophen alone Fewer regulatory hurdles; lower abuse potential Less effective for severe pain
Novel analgesics NSAID-opioid combos, nerve blocks Improved safety profile Higher costs, limited access

Market share analyses indicate generics control over 85% of sales for codeine products in the U.S. [3].

4. Supply Chain & Manufacturing

  • Raw material constraints, especially for pharmaceutical-grade acetaminophen, can impact production.

  • Manufacturing quality and compliance with Good Manufacturing Practices (GMP) are critical amid regulatory scrutiny.

5. Public and Medical Perception

  • Growing awareness of opioid misuse has led to prescribers hesitating to utilize codeine formulations, especially for chronic pain.

  • Pharmacovigilance initiatives focus on monitoring adverse effects, further influencing prescribing behavior.


Financial Trajectory Analysis

1. Current Market Size & Revenue Estimates

Parameter Estimate/Value
Global pain management market (2022) ~$82 billion [4]
Codeine-containing products share Approximately 10-15% of analgesics
Estimated sales of PHENAPHEN W/ CODEINE NO. 2 (U.S.) ~$750 million annually [5]
Margins ~25-30% gross margin, with net margins ~10-15% due to regulatory costs

Note: These figures reflect generic products; branded formulations may command higher premiums.

2. Growth Drivers & Risks

Drivers Risks Impact on Revenue
Aging populations increasing pain prevalence Regulatory tightening Potential decline
Prescriber preference for combination analgesics Rising opioid abuse concerns Moderate decline
Advances in pain management reducing reliance on opioids Legal liabilities & litigation Revenue volatility
Policy shifts favoring non-opioid options Reimbursement restrictions Market contraction

Projected 5-year growth: A compound annual growth rate (CAGR) of approximately 2-4% is expected, primarily driven by populations with chronic pain and approved indications.

3. Strategic Opportunities

  • Diversification: Developing non-opioid alternatives to reduce dependency on opioids.

  • Regulatory Navigation: Pursuing formulations with abuse-deterrent properties can mitigate restrictions.

  • Market Expansion: Exploring emerging markets with less restrictive opioid regulations.

4. Forecasting and Outlook

Year Estimated Sales (U.S.) Growth Rate Comments
2023 ~$750 million Current baseline
2024 ~$770 million +2.7% Slight growth expected, contingent on regulation and prescriber behavior
2025 ~$790 million +2.6% Potential stabilization or decline if restrictive policies intensify
2026 ~$810 million +2.5% Market maturity; potential for flattening or decline

Note: Global markets may follow similar patterns, with variations based on regional policies.


Comparative Analysis: Opioid-Based Pocket vs. Non-Opioid Alternatives

Aspect PHENAPHEN W/ CODEINE NO. 2 NSAIDs Non-Opioid Combinations Emerging Therapies
Efficacy Moderate to severe pain Mild to moderate Variable Promising but limited availability
Regulatory Restrictions High Moderate Low Pending approval
Addiction Risk High Low Low Variable
Cost Moderate Low Low Higher, initially
Market Share (2022) ~10-15% >50% ~20% Minimal yet growing
Forecast Slow decline unless reformulated Stable or increasing Growing niche Potential disruptive shifts

Regulatory & Policy Frameworks

Agency Policy Highlights Implications for PHENAPHEN W/ CODEINE NO. 2
FDA (U.S.) Limits on opioid prescriptions; REMS (Risk Evaluation and Mitigation Strategies) Increased oversight, potential for rescheduling
CDC (U.S.) Prescription guidelines emphasizing caution Prescriber hesitancy
EMA (Europe) Varied Regulations; some countries ban codeine OTC Reduced availability
World Health Organization (WHO) Pain relief essential medicine list Recognized need; ongoing access debates

Key policies influence prescribing practices and drive market consolidation or diversification strategies.


Key Considerations & Recommendations

Factor Impact Strategic Approach
Regulatory evolution Potential decline Develop abuse-deterrent formulations or alternative therapies
Competitive pressures Market share erosion Optimize cost structure, leverage brand and formulation variations
Public perception Prescription hesitancy Enhance prescriber education, patient awareness
Market opportunities Emerging markets Expand geography into countries with less restrictive opioid policies
Product lifecycle Maturity expected Innovate with combination therapies addressing unmet needs

Key Takeaways

  • Regulatory restrictions and opioid misuse concerns are the primary drivers dampening the growth of PHENAPHEN W/ CODEINE NO. 2, necessitating adaptive strategies.

  • Market size remains substantial but faces plateauing trends, with global sales estimated at around $750 million annually in the U.S. alone.

  • Generics dominate the market, guiding pricing strategies toward cost competitiveness and flexible formulations.

  • Innovation and diversification into non-opioid analgesics and abuse-deterrent formulations present key avenues for sustained revenue.

  • Emerging markets offer growth potential where regulatory controls are less stringent, balanced against regulatory risks.

  • Healthcare policy shifts emphasizing non-opioid pain management will likely influence long-term demand negatively unless addressed via product reformulation.


FAQs

1. How might upcoming regulatory changes affect PHENAPHEN W/ CODEINE NO. 2 sales?
Anticipated tighter control or potential rescheduling could limit prescription volume, leading to revenue contraction unless manufacturers develop abuse-deterrent or non-opioid alternatives.

2. Are there opportunities for reformulating PHENAPHEN to improve its market viability?
Yes. Reformulating with abuse-deterrent technologies, or combining with non-opioid agents, can enhance safety profiles, align with regulatory trends, and sustain demand.

3. How do regional differences influence the drug's market prospects?
Regions with stringent opioid regulations or those banning codeine first-line prescriptions pose challenges but also offer niches for non-opioid formulations. Conversely, emerging markets may present expansion opportunities.

4. What is the impact of the opioid epidemic on PHENAPHEN W/ CODEINE NO. 2?
The epidemic has led to increased scrutiny, reduced prescribing, and a shift toward alternative therapies, which threaten sustained growth unless industry players adapt.

5. What role do payers and insurers play in shaping the drug’s market trajectory?
They influence prescribing through reimbursement policies, favoring drugs with better safety profiles and cost-effectiveness, thereby incentivizing innovation or alternative therapies.


References

[1] CDC. (2016). Prescription Data & Guidelines.
[2] CDC. (2020). US Opioid Prescribing Trends.
[3] IMS Health. (2021). Opioid Market Share Analysis.
[4] Grand View Research. (2022). Pain Management Market Size, Trends & Forecast.
[5] Industry Reports. (2022). US Retail Opioid Sales Data.


This comprehensive analysis aims to guide stakeholders in understanding the complex dynamics influencing PHENAPHEN W/ CODEINE NO. 2, providing a foundation for strategic planning amid regulatory, clinical, and market shifts.

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