Last Updated: August 3, 2026

TRIPLE SULFAS Drug Patent Profile


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Which patents cover Triple Sulfas, and what generic alternatives are available?

Triple Sulfas is a drug marketed by Lederle and is included in one NDA.

The generic ingredient in TRIPLE SULFAS is trisulfapyrimidines (sulfadiazine;sulfamerazine;sulfamethazine). Additional details are available on the trisulfapyrimidines (sulfadiazine;sulfamerazine;sulfamethazine) profile page.

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  • What is the 5 year forecast for TRIPLE SULFAS?
  • What are the global sales for TRIPLE SULFAS?
  • What is Average Wholesale Price for TRIPLE SULFAS?
Summary for TRIPLE SULFAS
US Patents:0
Applicants:1
NDAs:1
Raw Ingredient (Bulk) Api Vendors: 1
DailyMed Link:TRIPLE SULFAS at DailyMed

US Patents and Regulatory Information for TRIPLE SULFAS

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Lederle TRIPLE SULFAS trisulfapyrimidines (sulfadiazine;sulfamerazine;sulfamethazine) SUSPENSION;ORAL 006920-003 Approved Prior to Jan 1, 1982 DISCN No No ⤷  Start Trial ⤷  Start Trial ⤷  Start Trial
Lederle TRIPLE SULFAS trisulfapyrimidines (sulfadiazine;sulfamerazine;sulfamethazine) TABLET;ORAL 006920-002 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
Last updated: July 13, 2026

TRIPLE SULFAS market dynamics and financial trajectory: pricing, demand drivers, competition, and exclusivity risk

Triple Sulfas (combination sulfonamides marketed as “Triple Sulfas”) is an old, off-patent small-molecule product with commodity-style pricing behavior. The financial trajectory is dominated by (1) steady substitution by generics/buyable competitors within the same dosage form, (2) procurement and wholesaler contracting cycles, and (3) intermittent demand spikes driven by institutional prescribing patterns and shortages. In the absence of active, market-relevant exclusivity, the key “trajectory” question is not revenue growth potential, but how fast pricing compresses once multiple suppliers and contract competition stabilize.


What is TRIPLE SULFAS and how is it used commercially?

Market position (practical): Triple Sulfas is sold as a sulfonamide combination product used in settings where sulfa-based regimens remain accepted. Commercial pull typically comes from continuity prescribing in formularies, institutional purchasing, and “availability first” procurement behavior when antibiotic supply is constrained.

Demand characteristics (typical for older antibiotics):

  • Price sensitivity: high; purchasing favors lowest net cost after rebates/contracting.
  • Limited differentiation: product switching is usually low-friction when the same active ingredients and dosing are accepted.
  • Reimbursement mechanics: bundled or plan-level antibiotic formularies often drive utilization more than branded demand.
  • Supply-side effects: availability disruptions swing demand to whichever suppliers can fill orders.

What market dynamics drive revenue for TRIPLE SULFAS?

1) Procurement contracting and pass-through pricing

  • Revenue is strongly tied to wholesaler buy cycles and GPO/IDN contracting.
  • As more suppliers compete, list price becomes less predictive than net price (rebates, chargebacks, prompt-pay terms).

2) Generic substitution and competitive intensity

  • For older small molecules, the limiting factor is usually manufacturing capacity and regulatory compliance, not brand equity.
  • Once multiple labelers are stable, pricing moves toward defensive discounting rather than volume-led growth.

3) Antibiotic utilization cycles

  • Broader antibiotic stewardship policies can reduce overall sulfonamide use.
  • Conversely, local outbreaks, resistant-therapy gaps, or shortages can raise use temporarily.

4) Supply and quality events

  • Any lapse in manufacturing uptime or distribution coverage impacts fill rates, creating temporary pricing/volume benefits for unaffected suppliers.
  • These events are episodic, so financial trajectory tends to show step changes rather than smooth growth.

What is the historical financial trajectory pattern for off-patent antibiotic combinations?

For products like Triple Sulfas in mature markets, the standard trajectory profile is:

  • Early-to-mid lifecycle: branded or limited-competition period with higher margins.
  • Post-off-patent: margin compression as generics expand.
  • Mature phase: low-to-flat revenue with periodic volatility from contract re-tenders, formulary moves, and supply constraints.
  • Late phase: declining trend if stewardship restricts use, balanced by occasional spikes if alternative therapies are unavailable.

In practice, investors and acquirers treat this as a “low growth, high working-capital sensitivity” business, because:

  • margins depend on contract terms and manufacturing yield,
  • revenue depends on distribution fill performance,
  • inventory turns and returns materially affect cash flow.

When does TRIPLE SULFAS lose exclusivity, and what does that mean financially?

This question cannot be answered with required specificity because Triple Sulfas’s exclusivity status depends on:

  • the exact FDA approval (NDA vs ANDA),
  • listed patents and their Orange Book codes,
  • any unexpired pediatric exclusivity or new formulation/indication exclusivities,
  • and whether any product-specific exclusivity exists beyond generic market entry.

No reliable exclusivity timeline can be produced without an authoritative Orange Book mapping for “Triple Sulfas” by product strength and dosage form.


What patents protect TRIPLE SULFAS, and how many are listed?

This cannot be stated accurately without the Orange Book patent listing set for the specific marketed product(s) under the “Triple Sulfas” label. Patent estates for sulfonamide combinations can vary materially by:

  • formulation (tablet vs suspension),
  • strengths,
  • manufacturing process,
  • and method-of-use (if any) tied to specific indications.

No complete patent count, expiration schedule, or claim coverage can be generated without the product-specific patent family data.


What is the Orange Book status of TRIPLE SULFAS?

A precise Orange Book status requires:

  • the FDA application number,
  • the Orange Book listing entries (proprietary name, active ingredient(s), dosage form, strength),
  • expiration and exclusivity dates tied to those entries.

Without product-level Orange Book data for “Triple Sulfas,” any statement would be non-actionable.


How strong is the patent estate for TRIPLE SULFAS?

For older antibiotics, the practical expectation is:

  • limited remaining composition-of-matter protection,
  • weak formulation differentiation unless there is a specific newer delivery/formulation platform,
  • and reliance on regulatory exclusivity rather than enforceable patents.

But strength cannot be quantified or ranked without a defined set of unexpired patents and their legal status (e.g., litigated, surrendered, or expired).


What patent litigation affects TRIPLE SULFAS or its competitors?

Patent litigation history cannot be mapped without:

  • the specific active ingredients and product application(s),
  • ANDA filer identities,
  • Paragraph IV notices,
  • and settlement terms.

No litigated event can be asserted without a verifiable docket-linked record.


What generic entry risks exist for TRIPLE SULFAS?

Generic entry risks for combination antibiotics are typically driven by:

  • whether the product is already widely genericized,
  • whether any remaining formulation or method-of-use patents exist,
  • whether there are bioavailability/CMC barriers for the dosage form,
  • and whether there are distribution constraints that protect certain suppliers temporarily.

However, because Triple Sulfas-specific legal and regulatory status is not provided here, generic entry risk cannot be scored.


How does TRIPLE SULFAS compare with alternative sulfonamide regimens?

At a high level, comparison hinges on:

  • accepted equivalency (same active ingredients and dosing),
  • tolerability and adverse event profiles that affect prescribing,
  • availability and supply reliability,
  • and contract pricing.

But meaningful market share analysis requires knowledge of the specific alternatives used in the same therapeutic slot and the dosing equivalence rules in formularies.


What manufacturing and IP barriers affect TRIPLE SULFAS supply?

For mature sulfonamide combinations, barriers are usually practical rather than IP:

  • API supply reliability and cost volatility,
  • granulation/compression performance (for tablets),
  • suspension stability (if liquid dosage),
  • quality systems and batch release consistency,
  • and CMC comparability for generic applicants.

Still, the barriers cannot be tied to Triple Sulfas without the dosage form and manufacturing details.


Which companies sell TRIPLE SULFAS, and how does competitive intensity affect margins?

A company-level competitive map cannot be created without identifying:

  • specific labelers/NDAs/ANDAs under “Triple Sulfas,”
  • their market shares by channel (retail vs institutional),
  • and their pricing behavior across contract periods.

How do FDA regulatory milestones shape TRIPLE SULFAS revenue?

For mature combination drugs, FDA milestones affect revenue mainly through:

  • ANDA approvals and launch timing,
  • label updates,
  • shortages or safety communications,
  • and periodic compliance events.

No milestone timeline can be constructed without the application identifiers for “Triple Sulfas.”


Key takeaways

  • Triple Sulfas is best analyzed as a mature, substitution-driven antibiotic combination where revenue is driven by net pricing and procurement fill performance, not brand differentiation.
  • The financial trajectory is typically flat to declining with periodic volatility from contracting cycles and supply events.
  • Exclusivity, patent estate strength, Orange Book status, and litigation outcomes are the decisive variables for timing of generic pressure, but they cannot be stated accurately here without product-specific FDA patent and application identifiers.

FAQs

  1. What determines net pricing for Triple Sulfas in hospital procurement?
    Contract terms, wholesaler rebates/chargebacks, GPO/IDN award cycles, and fill-rate reliability.

  2. Do shortages increase Triple Sulfas revenue, and for how long?
    Usually they create short-lived volume and price lift until substitute suppliers normalize supply and contracts retender.

  3. What dosage forms for Triple Sulfas are most exposed to generic substitution?
    Forms with well-established bioequivalence and straightforward CMC pathways (typically solid oral dosage), assuming no formulation-specific protections.

  4. How should investors model cash flow for Triple Sulfas?
    With a working-capital view: inventory turns, batch release delays, returns, and contract settlement timing matter more than sales growth assumptions.

  5. What is the main driver of TRIPLE SULFAS market share shifts between suppliers?
    Distribution coverage and manufacturing reliability during contracting and shortage windows.


References

No sources were cited because product-specific Orange Book, FDA application, patent, and litigation data for “Triple Sulfas” were not included in the prompt.

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