Last Updated: June 18, 2026

ZOVIA 1/50E-21 Drug Patent Profile


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When do Zovia 1/50e-21 patents expire, and when can generic versions of Zovia 1/50e-21 launch?

Zovia 1/50e-21 is a drug marketed by Watson Labs and is included in one NDA.

The generic ingredient in ZOVIA 1/50E-21 is ethinyl estradiol; ethynodiol diacetate. There are twenty-six drug master file entries for this compound. Six suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; ethynodiol diacetate profile page.

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  • What is the 5 year forecast for ZOVIA 1/50E-21?
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Summary for ZOVIA 1/50E-21
US Patents:0
Applicants:1
NDAs:1

US Patents and Regulatory Information for ZOVIA 1/50E-21

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Exclusivity Expiration
Watson Labs ZOVIA 1/50E-21 ethinyl estradiol; ethynodiol diacetate TABLET;ORAL-21 072722-001 Dec 30, 1991 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: April 25, 2026

ZOVIA 1/50E-21: Investment Scenario and Fundamentals Analysis

No complete, verifiable drug identity or regulatory/patent record for “ZOVIA 1/50E-21” is present in the available knowledge base. Without an unambiguous mapping to an active ingredient, salt/solvate, strength, dosage form, jurisdiction, and reference regulatory filings, no defensible investment, patent landscape, exclusivity, or clinical/commercial fundamentals assessment can be produced.

What is ZOVIA 1/50E-21 in patent and regulatory terms?

A fundamentals analysis requires at minimum one of the following to anchor the asset:

  • INN/active ingredient(s) and route/dosage form
  • Marketing authorization (e.g., EMA/FDA/PMDA) with application number and product name
  • Patent family linkage (US/EPO/WO) and proprietary manufacturing process or formulation claims

No such linkage can be established for “ZOVIA 1/50E-21” from the provided input alone, so the analysis cannot be completed without inventing facts.


Is ZOVIA 1/50E-21 an approved medicine with defined sales and pipeline scope?

A sound investment scenario normally triangulates:

  • Regulatory status (approved, pending, withdrawn)
  • Clinical phase history by jurisdiction
  • Indications, line of therapy, and comparator landscape
  • Trial endpoints that map to label claims
  • Sales base or projected market access timelines

No verifiable regulatory status, label, or clinical history can be tied to “ZOVIA 1/50E-21” from the available data, so market fundamentals cannot be quantified.


What exclusivity and patent protections would govern ZOVIA 1/50E-21?

A patent-driven investment case depends on:

  • Patent term extenders (e.g., US PTE) and paediatric extensions
  • Orange Book / national registers listing for the exact NDA/Ma number
  • Patent types: composition, formulation, polymorph/crystal form, method of use, process, device
  • Expiry schedule by jurisdiction and likely generic entry dates

No patent family or exclusivity record can be assigned to the asset name given, so expiry risk and litigation leverage cannot be assessed.


Key Takeaways

  • A complete and accurate investment and patent fundamentals analysis cannot be produced for “ZOVIA 1/50E-21” because the asset cannot be unambiguously mapped to an active ingredient and regulatory/patent identity.
  • Without that mapping, any claim about exclusivity, market access timing, clinical relevance, or valuation drivers would be speculative.

FAQs

  1. Can you assess ZOVIA 1/50E-21 commercial potential without an active ingredient and approved indication?
    No. Fundamentals and market access depend on the labeled indication, route, and competitive set tied to the specific active ingredient.

  2. Can you forecast patent expiry or generic risk from an asset code alone?
    No. Patent risk requires patent family identification, jurisdiction, and claim scope tied to the exact product.

  3. Can you evaluate clinical differentiation without knowing the mechanism of action and trial endpoints?
    No. Differentiation is indication and endpoint specific.

  4. Can you value the asset without regulatory status and market access constraints?
    No. Valuation depends on approval status, reimbursement pathways, and manufacturing scale requirements.

  5. What is the minimum information needed to run a defensible patent-and-fundamentals model?
    A verifiable mapping to active ingredient and regulatory/patent identifiers for the exact product.


References

No sources are cited because no verifiable identity for “ZOVIA 1/50E-21” can be established from the provided information.

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Drugs may be covered by multiple patents or regulatory protections. All trademarks and applicant names are the property of their respective owners or licensors. Although great care is taken in the proper and correct provision of this service, thinkBiotech LLC does not accept any responsibility for possible consequences of errors or omissions in the provided data. The data presented herein is for information purposes only. There is no warranty that the data contained herein is error free. We do not provide individual investment advice. This service is not registered with any financial regulatory agency. The information we publish is educational only and based on our opinions plus our models. By using DrugPatentWatch you acknowledge that we do not provide personalized recommendations or advice. thinkBiotech performs no independent verification of facts as provided by public sources nor are attempts made to provide legal or investing advice. Any reliance on data provided herein is done solely at the discretion of the user. Users of this service are advised to seek professional advice and independent confirmation before considering acting on any of the provided information. thinkBiotech LLC reserves the right to amend, extend or withdraw any part or all of the offered service without notice.