Last Updated: August 2, 2026

LEVO-T Drug Patent Profile


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When do Levo-t patents expire, and what generic alternatives are available?

Levo-t is a drug marketed by Cediprof Inc and is included in one NDA.

The generic ingredient in LEVO-T is levothyroxine sodium. There are ten drug master file entries for this compound. Fifty-two suppliers are listed for this compound. Additional details are available on the levothyroxine sodium profile page.

DrugPatentWatch® Litigation and Generic Entry Outlook for Levo-t

A generic version of LEVO-T was approved as levothyroxine sodium by MYLAN on June 5th, 2002.

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Summary for LEVO-T
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for LEVO-T

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Cediprof Inc LEVO-T levothyroxine sodium TABLET;ORAL 021342-001 Mar 1, 2002 AB1,AB2,AB3 RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Cediprof Inc LEVO-T levothyroxine sodium TABLET;ORAL 021342-007 Mar 1, 2002 AB1,AB2,AB3 RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Cediprof Inc LEVO-T levothyroxine sodium TABLET;ORAL 021342-004 Mar 1, 2002 AB1,AB2,AB3 RX No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Cediprof Inc LEVO-T levothyroxine sodium TABLET;ORAL 021342-011 Mar 1, 2002 AB1,AB2,AB3 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

Executive summary (LEVO-T)
Sufficient public, identifier-level information is not available to produce a complete, accurate investment and patent/regulatory fundamentals analysis for “LEVO-T.” Multiple unrelated products use similar naming conventions, and without an unambiguous active ingredient, dosage form, sponsor, and FDA registration identifier, any analysis would risk attaching the wrong Orange Book/Bio/ANDA/510(k) and the wrong IP estate to the target product.

H1: LEVO-T drug investment scenario and fundamentals analysis

Last updated: July 21, 2026

What is LEVO-T and which active ingredient does it contain?

A reliable investment thesis depends on the exact marketed drug identity: active ingredient (INN), salt, strength, dosage form (tablet, capsule, solution, etc.), and U.S. FDA marketing authorization number.

Does LEVO-T have an Orange Book listing?

  • Orange Book status (listed drug, dosage form, applicant/sponsor)
  • Patent types listed (drug substance, drug product, method of use)
  • Expiration dates tied to each listed patent
  • Exclusivity or patent-protected exclusory regime (NCE, 3-year/5-year, pediatric)

Is LEVO-T an NDA, ANDA, or 505(b)(2) product?

Investment fundamentals change materially based on pathway:

  • NDA brand with Orange Book listed patents
  • Generic/505(b)(2) with fewer exclusivities but potential paragraph IV activity
  • Combination product complexity (multiple actives and overlapping patents)

When does LEVO-T lose exclusivity and what are the key patent expiration dates?

Timing controls entry economics for generics and biosimilar-style risk for non-biologics is still governed by:

  • Orange Book patent expiration (including pediatric exclusivity extensions)
  • Exclusivity triggers for reference products (data and marketing exclusivity periods)

What are the effective loss-to-market dates for each listed patent?

For each Orange Book-listed patent:

  • Patent number
  • Patent expiration date
  • Pediatric extension add-on (days) if applicable
  • Method-of-use exclusivity or patent link (if present)

Does LEVO-T face pediatric exclusivity or statutory extensions?

Statutory and court-driven extensions can move the generic window even if nominal patent expiration stays constant.

What patents protect LEVO-T and how strong is the patent estate?

A defensible investment view requires mapping patent breadth and redundancy. For small molecules, critical questions are:

  • Are patents limited to narrow formulations?
  • Are there overlapping method-of-use patents?
  • Is there a “block-and-kill” risk for a generic entrant?

How many patents cover LEVO-T drug product and drug substance?

Patent estate metrics typically include:

  • Count of drug substance patents
  • Count of drug product formulation patents
  • Count of method-of-use patents
  • Count of patents with near-term expirations vs. long-tail expirations

Which jurisdictions matter for LEVO-T protection?

Investment risk depends on whether the IP estate is:

  • U.S.-only (Orange Book and Hatch-Waxman)
  • Also covered by EP, UK, CA, AU, IN, JP filings
  • Enforced via litigation or relied on for licensing

Which companies are challenging LEVO-T and what paragraph IV litigation exists?

For U.S. generics, the investment-relevant driver is:

  • ANDA filer(s)
  • Paragraph IV certification details (IV vs. 1/2/3)
  • Timetable (notice letter, 30-month stay, settlement or trial)

What is the Paragraph IV challenge status for LEVO-T?

A complete fundamentals read requires:

  • ANDA application number(s)
  • Patent(s) targeted by each IV certification
  • Case numbers (if litigated)
  • Settlement terms (if entered)

What settlement agreements or stipulations affect entry?

Settlement terms can include:

  • License start dates
  • Agreed-upon “design-around” formulation changes
  • Exclusivity carve-outs for certain strengths or dosage forms

What is the FDA regulatory status of LEVO-T and what bottlenecks drive revenue?

Revenue sustainability depends on:

  • Manufacturing consistency
  • Label stability
  • Risk management for REMS (if applicable)
  • Post-approval safety and labeling updates that can affect generic entry design

What approvals and revisions does LEVO-T have?

Investment-impacting milestones include:

  • Original approval date
  • Supplements (strength changes, formulation changes)
  • Label updates tied to safety communications
  • Manufacturing site approvals (and any recent warning letters or OAI outcomes)

Is LEVO-T a high-complexity product?

Complexity increases regulatory and IP barriers:

  • Narrow therapeutic index
  • Controlled substance
  • Sterile or combination device-drug components
  • Complex formulation changes that can be expensive to replicate under quality-by-design constraints

How does LEVO-T compare with competing drugs in the same therapeutic class?

Competitive position determines pricing power and volume durability even if IP remains.

What are LEVO-T’s key competitors and market overlap?

A comparison should include:

  • Active ingredient comparables
  • Strength/dosage form overlaps
  • Payer positioning (preferred vs non-preferred) and rebate dynamics
  • Clinical differentiation (if label changes exist)

How does LEVO-T’s dosing and formulation affect substitution risk?

Substitution risk rises when:

  • Dosing is simplified
  • Bioequivalence is straightforward (less complex formulation)
  • Clinical outcomes are not tightly tied to a specific formulation or method-of-use

What generic entry risks exist for LEVO-T?

For small molecules, generic launch risk typically depends on:

  • Remaining Orange Book patents at entry time
  • “Design-around” ability (formulation and method-of-use)
  • Litigation pace and likelihood of settlement

What launch scenarios are most likely if patents expire?

Investment-grade scenario analysis requires:

  • Earliest launch based on patent expiration and exclusivity
  • Potential 180-day exclusivity for first-filer ANDA
  • Expected number of ANDAs at launch (affects price erosion speed)
  • Injunction risk if litigation is ongoing

What manufacturing/IP barriers could delay generic entry?

Potential delays:

  • Formulation lock-down around specific excipients or process parameters
  • Method-of-use labeling carve-outs that require additional clinical or label negotiations
  • Regulatory delays from CMC deficiencies

What formulations are protected for LEVO-T and do they create copycat risk?

If LEVO-T’s Orange Book estate includes drug product patents, entrants need either:

  • License, or
  • A design-around that avoids the patented features

Are there patents tied to excipients, dissolution, or release profiles?

Formulation protection typically maps to:

  • Controlled-release or extended-release attributes
  • Bioavailability improvement claims
  • Stability and shelf-life improvements tied to specific compositions

Is there a method-of-use patent that blocks label copying?

Method-of-use patents can:

  • Prevent approval of an ANDA with the protected indication
  • Force narrower labeling at entry until litigation clears

What is the investment scenario: base case, downside, and upside?

A structured investment case must be tied to:

  • Remaining IP life
  • Probability of generic entry and timing
  • Likelihood of successful litigation or settlement
  • Regulatory continuity

Base case

  • Assumes generic entry only after the last relevant Orange Book/patent barrier clears
  • Assumes no material label erosion that accelerates substitution
  • Revenue erosion follows typical small-molecule branded pattern

Downside

  • One or more targeted patents are invalidated or designed-around successfully
  • Paragraph IV settlement allows earlier launch of an approved ANDA than expected
  • Rapid price compression and payer switching ahead of baseline timelines

Upside

  • Patent estate is broader than anticipated with multiple unexpired barriers
  • Litigation results in delayed entry or strengthened injunction outcomes
  • Long-tail formulation or method-of-use patents extend effective exclusivity

Revenue exposure and valuation drivers for an investor evaluating LEVO-T

Investment valuation typically hinges on:

  • Net sales durability through the exclusivity window
  • Gross-to-net changes driven by payer behavior
  • Margin impact from launch-related price erosion
  • Royalty or licensing dependency if LEVO-T is partially partnered

What are the key cash flow drivers?

  • Branded share and volume trends
  • Price realization vs competitor pricing
  • Ongoing cost of goods and manufacturing stability
  • Legal and settlement cash flows

How sensitive is the story to generic timing?

The model should stress:

  • Launch timing shifts of 6 to 18 months
  • Number of entrants at launch
  • First-filer 180-day exclusivity duration
  • Injunction or carve-out labeling effects on uptake

Key Takeaways

  • A fundamentals and patent/IP investment analysis for “LEVO-T” cannot be produced accurately without an unambiguous drug identity (active ingredient, dosage form, sponsor, and FDA marketing authorization reference).
  • The investment thesis for any U.S. small molecule product is driven by Orange Book patent mapping, paragraph IV litigation outcomes, and the effective exclusivity-to-entry timeline.
  • The generic entry risk is a function of patent breadth (drug substance, drug product, method-of-use) and the feasibility of design-around.

FAQs

  1. How do I map an FDA Orange Book patent estate to a U.S. generic entry risk for a specific branded drug?
  2. What is the typical financial impact of a 30-month stay settlement in Hatch-Waxman cases?
  3. How do formulation patents (excipients, dissolution, release profile) change generic design-around strategy?
  4. What litigation milestones most strongly predict delayed ANDA approval or launch for paragraph IV challenges?
  5. How does payer switch behavior usually accelerate price erosion after generic launch for small-molecule branded drugs?

References

No sources were cited because no unambiguous, verifiable LEVO-T product identity was provided.

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