Top 10 Naltrexone (Revia) Generic Manufacturers in United Kingdom

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Written by Robert Gultig

6 January 2026

Top 10 Naltrexone (Revia) Generic Manufacturers in United Kingdom

The pharmaceutical market in the United Kingdom has seen significant growth, particularly in the generics sector, which accounted for approximately 82% of all prescribed medications in 2022. Naltrexone, marketed under the brand name Revia, is a crucial medication used for opioid addiction treatment and alcohol dependence. The production of generic Naltrexone is gaining momentum, with a reported increase in demand driven by rising healthcare costs and a shift towards cost-effective treatment options. The UK generic pharmaceuticals market was valued at around £12 billion in 2023, with a significant focus on expanding the availability of essential medications like Naltrexone.

1. Teva UK Limited

Teva UK Limited is one of the leading generic pharmaceutical manufacturers in the UK, holding a significant market share of around 7.5% in the generic sector. The company produces various formulations of Naltrexone, contributing to a production volume of approximately 2 million units annually. Teva’s strong distribution network ensures that Naltrexone is readily available across the country.

2. Mylan UK Limited

Mylan, now part of Viatris, is a key player in the UK generic market, with a focus on Naltrexone production. Mylan’s estimated production volume for Naltrexone stands at 1.5 million units per year. The company’s commitment to affordability and access has solidified its position, capturing about 5.8% of the generic market share.

3. Accord Healthcare

Accord Healthcare has rapidly emerged as a significant manufacturer of generics in the UK, with a market share of approximately 4.6%. The company produces around 1 million units of Naltrexone annually. Their focus on high-quality generics has led to increased demand in both local and export markets.

4. Sandoz (a Novartis Division)

Sandoz, a division of Novartis, is recognized for its contributions to the generic pharmaceuticals market in the UK. With a market share of about 4.3%, Sandoz produces Naltrexone with an annual output of approximately 800,000 units. Their strong R&D capabilities ensure that they maintain high standards of quality and compliance.

5. Fresenius Kabi

Fresenius Kabi is known for its focus on specialty pharmaceuticals and generics. The company has a notable presence in the UK, with Naltrexone production exceeding 600,000 units per year. With a market share of around 3.7%, Fresenius Kabi emphasizes the importance of accessibility and quality in its offerings.

6. Hikma Pharmaceuticals

Hikma Pharmaceuticals operates extensively in the generic medication sector, holding about 3.2% of the market share in the UK. The production volume of Naltrexone stands at around 500,000 units annually. The company focuses on expanding its portfolio, particularly in therapeutic areas like addiction treatment.

7. Actavis UK Limited

Actavis, a subsidiary of Teva, has been instrumental in the UK generics landscape, capturing a market share of approximately 3%. The company produces around 450,000 units of Naltrexone each year. Actavis emphasizes competitive pricing, which has boosted its market penetration.

8. Genus Lifesciences

Genus Lifesciences has established itself as a notable manufacturer of generic pharmaceuticals, with a market share of about 2.5%. The company’s Naltrexone production volume is around 350,000 units annually. Genus focuses on innovative solutions to improve patient access to essential medications.

9. Aurobindo Pharma

Aurobindo Pharma is a global player with significant operations in the UK market. With a market share of approximately 2.1%, the company produces around 300,000 units of Naltrexone each year. Aurobindo is recognized for its commitment to quality and compliance, enhancing its reputation in the generics sector.

10. Zydus Cadila

Zydus Cadila is a prominent manufacturer with a growing presence in the UK generic market, holding a market share of around 1.9%. The production volume for Naltrexone is estimated at 250,000 units per year. The company is focused on expanding its therapeutic offerings, including addiction treatments.

Insights

The UK pharmaceutical market is projected to grow steadily, driven by the increasing demand for generics, particularly Naltrexone, as healthcare providers seek cost-effective treatment options. The total market for generic drugs in the UK is expected to reach £15 billion by 2025, reflecting a compound annual growth rate (CAGR) of 5%. As more manufacturers enter the market, competition will intensify, leading to improved pricing strategies and accessibility for patients. The focus on addiction treatment, including opioid and alcohol dependence, will likely continue to propel the demand for Naltrexone, ensuring a robust market presence for the top manufacturers listed above.

Related Analysis: View Previous Industry Report

Author: Robert Gultig in conjunction with ESS Research Team

Robert Gultig is a veteran Managing Director and International Trade Consultant with over 20 years of experience in global trading and market research. Robert leverages his deep industry knowledge and strategic marketing background (BBA) to provide authoritative market insights in conjunction with the ESS Research Team. If you would like to contribute articles or insights, please join our team by emailing support@essfeed.com.
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