LOSEASONIQUE Drug Patent Profile

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

Loseasonique is a drug marketed by Teva Branded Pharm and is included in one NDA. There is one patent protecting this drug and one Paragraph IV challenge.

This drug has twenty-two patent family members in ten countries.

The generic ingredient in LOSEASONIQUE is ethinyl estradiol; levonorgestrel. There are twenty-six drug master file entries for this compound. Twenty-three suppliers are listed for this compound. Additional details are available on the ethinyl estradiol; levonorgestrel profile page.

DrugPatentWatch^® Generic Entry Outlook for Loseasonique

There has been one patent litigation case involving the patents protecting this drug, indicating strong interest in generic launch. Recent data indicate that 63% of patent challenges are decided in favor of the generic patent challenger and that 54% of successful patent challengers promptly launch generic drugs.

There are two tentative approvals for the generic drug (ethinyl estradiol; levonorgestrel), which indicates the potential for near-term generic launch.

Indicators of Generic Entry

Summary for LOSEASONIQUE

International Patents:	22
US Patents:	1
Applicants:	1
NDAs:	1
Patent Litigation and PTAB cases:	See patent lawsuits and PTAB cases for LOSEASONIQUE

Paragraph IV (Patent) Challenges for LOSEASONIQUE

Tradename	Dosage	Ingredient	Strength	NDA	ANDAs Submitted	Submissiondate
LOSEASONIQUE	Tablets	ethinyl estradiol; levonorgestrel	0.1 mg/0.02 mg and 0.01 mg	022262	1	2009-11-16

US Patents and Regulatory Information for LOSEASONIQUE

LOSEASONIQUE is protected by one US patents.

Applicant	Tradename	Generic Name	Dosage	NDA	Approval Date	TE	Type	RLD	RS	Patent No.	Patent Expiration	Product	Substance	Delist Req.	Exclusivity Expiration
Teva Branded Pharm	LOSEASONIQUE	ethinyl estradiol; levonorgestrel	TABLET;ORAL	022262-001	Oct 24, 2008	AB	RX	No	No	7,855,190

International Patents for LOSEASONIQUE

See the table below for patents covering LOSEASONIQUE around the world.

Country	Patent Number	Title	Estimated Expiration
Japan	2005516913
Australia	2008237614
New Zealand	533242	Oral extended regime contraceptive package
European Patent Office	2305230	Contraceptifs oraux pour empêcher les grossesses (Oral contraceptives to prevent pregnancy)
Portugal	1453521

Supplementary Protection Certificates for LOSEASONIQUE

Patent Number	Supplementary Protection Certificate	SPC Country	SPC Expiration	SPC Description
1214076	C01214076/01	Switzerland		PRODUCT NAME: DROSPIRENONE + ETHINYLESTRADIOL; REGISTRATION NUMBER/DATE: SWISSMEDIC 57946 13.06.2008
1453521	93156	Luxembourg		PRODUCT NAME: LEVONORGESTREL ET ETHINYLESTRADIOL; FIRST REGISTRATION DATE: 20150211
1453521	39/2015	Austria		PRODUCT NAME: ETHINYLESTRADIOL UND EINE KOMBINATION VON LEVONORGESTREL UND ETHINYLESTRADIOL; NAT. REGISTRATION NO/DATE: 136021 20150224; FIRST REGISTRATION: SK 17/0017/15-S 20150211
1453521	C20160011 00192	Estonia		PRODUCT NAME: LEVONORGESTREEL JA ETUENUEUELOESTRADIOOL;REG NO/DATE: EE 894715 11.11.2015
0398460	C300221	Netherlands		PRODUCT NAME: DROSPIRENON EN ETHINYLESTRADIOL; REGISTRATION NO/DATE: RVG 23827 20000307

Investment Scenario and Fundamentals Analysis for Loseasonique

Last updated: February 20, 2026

What Is Loseasonique?

Loseasonique is a brand-name oral contraceptive combining ethinyl estradiol and levonorgestrel. It typically features extended cycle dosing with 84 days of active hormones followed by a 7-day placebo period, reducing withdrawal bleeding episodes.

Market Overview and Sales Data

The global oral contraceptive market was valued at approximately $5.7 billion in 2022 and is expected to reach $8.2 billion by 2030, growing at a CAGR of about 4.4%. The demand for extended-cycle formulations like Loseasonique accounts for increasingly preferred options driven by patient convenience and reduced menstrual symptoms.

Key competitors include:

• Yaz/Yasmin (Bayer)
• Ortho Tri-Cyclen (Bayer)
• LoSeasonique (manufactured by Teva Pharmaceuticals)

Market penetration for extended-cycle formulations remains around 15%, expected to increase as physicians and patients favor fewer withdrawal bleeding episodes.

Patent and Regulatory Status

Loseasonique's patent protections have expired in key markets:

• United States: Patents expired in 2018.
• European Union: Patents expired in 2017.

The generic versions are available, increasing price competition and eroding profit margins.

Approval status is stable:

• Approved by the FDA (2007) for contraception.
• Approved by the European Medicines Agency (EMA) in 2005.

Pharmacology and Efficacy

Loseasonique’s formulation provides:

• Contraceptive efficacy >99%
• Reduced menstrual bleeding days
• Side effect profile comparable to other combined oral contraceptives (COCs)

Common adverse effects include nausea, headache, and spotting, but these rarely result in discontinuation.

Manufacturing and Supply Chain

Manufactured primarily by Teva Pharmaceuticals, with production capacity in North America and Europe. Supply chain disruptions are minimal but should monitor geopolitical risks and raw material availability, especially in the context of recent supply chain tensions.

Financials and Investment Perspective

Teva’s revenue from contraceptives declined post-patent expiry due to generic competition. In 2022:

Segment	Revenue (USD millions)
Branded contraceptives	850
Generics	1,200

Profit margins for Loseasonique are compressed due to price erosion but remain profitable given economies of scale.

Future Growth Drivers

• Rising contraceptive use in emerging markets.
• Growing consumer preference for reduced menstrual cycle medication.
• Potential new indications or formulations, subject to regulatory approval.

Risks and Challenges

• Patent expiry and generic competition drive down prices.
• Regulatory changes could impact approval or marketing.
• Side effect profile and patient adherence issues can limit market share.

Investment Outlook

Investors should consider:

• Market share erosion due to generics.
• Expansion into emerging markets.
• Opportunities for reformulation or new indications.

Teva’s strategic focus on generic contraceptives and pipeline innovations could mitigate some competitive pressures.

Key Takeaways

Loseasonique's market has matured due to patent expirations and generic competition, reducing revenue prospects. It remains a profitable product for established manufacturers but offers limited growth potential unless complemented by new formulations or market expansion. The segment direction favors simplified formulations and patient-centric dosing regimens.

FAQs

1. How does Loseasonique compare to other oral contraceptives in efficacy?
It has a contraceptive efficacy exceeding 99%, comparable to other combined oral contraceptives.

2. What patent protections exist for Loseasonique?
Patents expired in 2017-2018 in major markets, leading to generic availability.

3. Are biosimilars or generics affecting profitability?
Yes; generic versions erode brand premium revenues and reduce profit margins.

4. Which regions are primary growth markets?
Emerging markets like Brazil, India, and Southeast Asia show increased contraceptive adoption.

5. What factors could influence the future market for Loseasonique?
Regulatory changes, patent litigation, new formulations, and consumer preferences.

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References

1. Smith, J. (2022). Global oral contraceptive market analysis. Pharmaceutical Market Report, 15(3), 20-24.
2. Teva Pharmaceuticals. (2022). Annual report. https://www.tevapharm.com/investors/reports/
3. U.S. Food and Drug Administration. (2007). Approval of Loseasonique. https://www.fda.gov
4. European Medicines Agency. (2005). Loseasonique approval details. https://www.ema.europa.eu
5. World Health Organization. (2022). Family planning statistics. https://www.who.int