Last Updated: August 9, 2026

REMIFENTANIL HYDROCHLORIDE Drug Patent Profile


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Which patents cover Remifentanil Hydrochloride, and when can generic versions of Remifentanil Hydrochloride launch?

Remifentanil Hydrochloride is a drug marketed by Fresenius Kabi Usa, Hikma, and Nivagen Pharms Inc. and is included in three NDAs.

The generic ingredient in REMIFENTANIL HYDROCHLORIDE is remifentanil hydrochloride. There are four drug master file entries for this compound. Three suppliers are listed for this compound. Additional details are available on the remifentanil hydrochloride profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Remifentanil Hydrochloride

A generic version of REMIFENTANIL HYDROCHLORIDE was approved as remifentanil hydrochloride by FRESENIUS KABI USA on January 16th, 2018.

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  • What is the 5 year forecast for REMIFENTANIL HYDROCHLORIDE?
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Recent Clinical Trials for REMIFENTANIL HYDROCHLORIDE

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

SponsorPhase
rebro University, SwedenPHASE4
Region rebro CountyPHASE4
Region SkanePHASE4

See all REMIFENTANIL HYDROCHLORIDE clinical trials

Pharmacology for REMIFENTANIL HYDROCHLORIDE
Drug ClassOpioid Agonist
Mechanism of ActionFull Opioid Agonists
Anatomical Therapeutic Chemical (ATC) Classes for REMIFENTANIL HYDROCHLORIDE
Paragraph IV (Patent) Challenges for REMIFENTANIL HYDROCHLORIDE
Tradename Dosage Ingredient Strength NDA ANDAs Submitted Submissiondate
ULTIVA for Injection remifentanil hydrochloride 1 mg/vial, 2 mg/vial and 5 mg/vial 020630 1 2013-12-27

US Patents and Regulatory Information for REMIFENTANIL HYDROCHLORIDE

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Fresenius Kabi Usa REMIFENTANIL HYDROCHLORIDE remifentanil hydrochloride INJECTABLE;INJECTION 206223-001 Jan 16, 2018 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Nivagen Pharms Inc REMIFENTANIL HYDROCHLORIDE remifentanil hydrochloride INJECTABLE;INJECTION 215635-001 Jun 28, 2024 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Hikma REMIFENTANIL HYDROCHLORIDE remifentanil hydrochloride INJECTABLE;INJECTION 210594-001 Oct 13, 2020 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Nivagen Pharms Inc REMIFENTANIL HYDROCHLORIDE remifentanil hydrochloride INJECTABLE;INJECTION 215635-002 Jun 28, 2024 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Fresenius Kabi Usa REMIFENTANIL HYDROCHLORIDE remifentanil hydrochloride INJECTABLE;INJECTION 206223-002 Jan 16, 2018 AP RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Fresenius Kabi Usa REMIFENTANIL HYDROCHLORIDE remifentanil hydrochloride INJECTABLE;INJECTION 206223-003 Jan 16, 2018 AP RX 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
Last updated: July 30, 2026

Remifentanil Hydrochloride Market Dynamics and Financial Trajectory (2026 Outlook)

Remifentanil hydrochloride is a short-acting, ultra–fast-onset opioid used primarily for perioperative anesthesia and procedural sedation in monitored settings. Commercial dynamics are driven by (1) operating-room case volume, (2) anesthesia practice patterns and formulary access, (3) competitive pressure from generic remifentanil brands, and (4) reimbursement and tender cycles for hospital procurement. Financial trajectory is typically characterized by mature, commoditized pricing, lower unit margins than branded entrants, and periodic demand spikes around supply and availability events rather than sustained innovation-led growth.

How big is the remifentanil hydrochloride market and what drives demand?

Featured snippet answer: Demand tracks surgical and anesthesia throughput, with hospital purchasing and supply continuity as the main near-term determinants.

Core demand drivers

  • Elective and inpatient surgery volumes: Remifentanil is used across general anesthesia induction/maintenance and in procedures requiring rapid titration and fast recovery.
  • Anesthesia workflow fit: The pharmacokinetics (rapid onset and offset) make it attractive where clinicians need tight control over depth of anesthesia and quick emergence.
  • Hospital formulary and purchasing behavior: In most geographies, remifentanil is widely available via multiple manufacturers, so buying is often driven by price, reliability, and tender outcomes rather than differentiation.
  • Supply reliability: Remifentanil products are sensitive to manufacturing disruptions due to high demand concentration in perioperative use and the need for predictable availability in hospitals.

Key demand constraints

  • Commoditization: In many markets the product is largely generic, compressing price.
  • Utilization ceilings: Use is tied to anesthesia protocols; substitution away from remifentanil can occur when protocols favor alternatives (other opioids, inhalational titration, or adjuncts), but switching costs exist at the hospital level.
  • Regulatory and controlled-substance management: Inventory controls and pharmacy-to-OR workflows can limit stocking flexibility.

Why do remifentanil prices typically compress and what creates short-term price spikes?

Featured snippet answer: Prices compress as generics expand and tenders reset. Spikes occur when supply constraints hit OR demand that cannot pause.

Price formation mechanics in hospital markets

  • Tender-based procurement: Competitive bidding drives recurring resets to lower net prices once supply broadens.
  • Contracting concentration: Large hospital systems consolidate contracts, increasing the impact of manufacturer availability and distribution coverage.
  • Shelf competition: Once multiple versions are approved and stocked, differentiation is limited to packaging, labeling, and supply continuity.

Sources of volatility

  • Manufacturing outages: A temporary loss of supply can shift purchases to remaining suppliers at higher net prices.
  • Regulatory or distribution disruptions: Short outages can cause contract renegotiations or short-term substitution.

How does the financial trajectory of remifentanil hydrochloride evolve after generic entry?

Featured snippet answer: Revenue growth is usually modest after widespread generic availability, with revenue scaling more closely to case volume than to pricing power. Profitability tracks supplier share and supply stability.

Typical post-entry pattern (commercial behavior)

  • Branded-to-generic transition: Branded revenue declines as generic competition expands.
  • Share migration: Market shares move to the lowest-cost reliable suppliers and those with uninterrupted supply.
  • Margin normalization: Unit margins fall as the market becomes price-competitive. Gross margins depend heavily on manufacturing economics and freight/working capital dynamics.

What that implies for annual financial performance

  • Top-line: Correlated with procedure volume and hospital purchasing cycles.
  • Gross margin: Correlated with price competition intensity and supply costs.
  • Net revenue stability: Often improves after supply settles, even if pricing continues to trend down.

Who are the major market participants for remifentanil hydrochloride and how do they compete?

Featured snippet answer: Competition is largely between generic manufacturers and authorized brand holders, with tenders and supply reliability as primary differentiators.

Competitive dimensions that matter financially

  • Availability and allocation risk: Customers pay a premium for reliable supply when competitors face constraints.
  • Distribution footprint: Broad coverage reduces stock-outs and improves contract win probability.
  • Hospital contract relationships: Long-term agreements favor suppliers with consistent tender performance and predictable lead times.
  • Product presentation: Vials, concentration, and reconstitution convenience can affect adoption within pharmacy protocols, though clinical interchangeability typically supports substitution.

What is the Orange Book status for remifentanil hydrochloride in the U.S.?

Featured snippet answer: In the U.S., remifentanil hydrochloride products are represented through approved generic listings and branded/authorized entries; the operative exclusivity and patent landscape depends on each specific NDA and dosage form strength.

Regulatory status dimensions to track

  • NDA-level listings and patents: Orange Book entries are NDA-specific and should be reviewed for each remifentanil hydrochloride presentation.
  • Exclusivity expiration: Where orphan, 505(b)(2), or other exclusivity exists, timing affects entry risk and launch timing.
  • Paragraph IV landscape: For U.S. generics, Paragraph IV certifications can drive litigation outcomes and delayed launches.

No Orange Book dataset was provided in the prompt, and the response is constrained to avoid incomplete or unverifiable patent/regulatory claims.

What patents protect remifentanil hydrochloride, and when do they expire?

Featured snippet answer: Patent protection for remifentanil is generally not a sustained growth driver because the drug is mature and widely available as generics; remaining patent value depends on formulation, manufacturing process, and specific product presentation.

How patent risk translates into market dynamics

  • Late-life litigation is rare for mature, commoditized drugs unless there are still live patents on specific presentations or manufacturing methods.
  • If live patents exist on a particular strength or formulation, they can delay a subset of competitors and briefly improve pricing for the dominant suppliers.

No patent numbers, assignee names, or jurisdictional expiration dates were provided, and this response cannot generate them without source-backed inputs.

What generic entry risks exist for remifentanil hydrochloride?

Featured snippet answer: The main generic entry risk is commercial rather than legal, because supply capacity, regulatory approvals, and contract access determine whether entrants can capture share.

Practical barriers that shape financial outcomes

  • Manufacturing scale and yield: High-precision aseptic/controlled manufacturing and cost structure affect unit economics.
  • Regulatory maintenance: Validation, stability, and ongoing quality compliance influence continuity of supply.
  • Hospital procurement locks: Even if a product is approved, entry into contracted formularies can lag.

How does remifentanil compare with other perioperative opioids on market competitiveness?

Featured snippet answer: Remifentanil’s competitive position is tied to its PK profile, but commoditization and tender-based pricing limit long-term monetization.

Competitive set (clinical substitution zones)

  • Short-acting opioids used in anesthesia: Substitution can occur based on protocol and titration preferences.
  • Adjunct analgesic strategies: Multimodal regimens can reduce opioid reliance in some workflows, impacting demand mix.

Where does revenue concentration sit: hospital use vs ambulatory or procedural settings?

Featured snippet answer: Revenue is predominantly hospital driven because remifentanil is most tied to perioperative anesthesia where IV titration and monitored recovery pathways are standard.

Commercial implications

  • Inpatient/outpatient mix affects growth rates: Higher elective surgery volumes increase demand; shifts to ambulatory settings can alter channel mix but not eliminate core demand.
  • Protocol-driven utilization: Anesthesia group practice guidelines influence dose frequency and duration, shaping unit consumption.

What financial metrics best predict remifentanil hydrochloride performance?

Featured snippet answer: Net price at contracted hospital accounts, volume growth in surgeries, and supply availability are the key metrics.

Actionable KPIs for business planning

  • Net selling price (NSP) by region: Captures tender-driven declines and recovery during supply constraints.
  • Volume by account type: Differentiates large system contracts from smaller facilities.
  • Fill-rate and backorder incidence: Correlates with ability to win/retain contracts.
  • Gross margin after freight and manufacturing yield: Sensitive to supply chain disruptions and batch performance.
  • Inventory days at customers: Affects immediate reorders during supply instability.

Key takeaways

  • Remifentanil hydrochloride is a perioperative anesthesia IV opioid with demand tied to surgical case volumes and anesthesia workflow adoption.
  • Market dynamics are procurement- and supply-driven: tender resets compress price, while availability disruptions can temporarily boost net pricing.
  • The financial trajectory is typically mature and commoditized: revenue growth tracks procedure volumes with limited sustained pricing power unless supply constraints concentrate share.
  • Generic entry risk is more commercial (manufacturing capacity, allocation risk, and formulary access) than purely legal for a mature product.
  • Patent and Orange Book timelines are presentation- and NDA-specific and require NDA-level listing review to quantify exclusivity and litigation impacts.

FAQs

  1. How do hospital tenders affect the remifentanil hydrochloride net price trajectory?
  2. What KPIs indicate remifentanil supply strain before it shows up in purchase order data?
  3. How does ambulatory surgery growth change remifentanil unit demand versus inpatient anesthesia use?
  4. What manufacturing and quality controls most influence remifentanil product supply continuity?
  5. How do protocol-driven substitution choices among perioperative opioids impact remifentanil consumption?

References

  1. No external sources were provided in the prompt to cite for Orange Book status, patent estates, litigation, or financial market sizing for remifentanil hydrochloride.

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