Who owns Thyronorm?
Thyronorm is owned by Virbac (France, EPA: VIRP), which has owned the brand since 16 December 2025.[1]
This ownership is reported in official statements but has not yet been matched to a regulatory filing.
Evidence: Virbac — Annual Report 2025, Virbac SA, 27 April 2026. Last checked .
Key facts
- Current owner
- Virbac SA reported
- Owned since
- Owner HQ
- 🇫🇷 France, Carros
- Origin
- 🇬🇧 United Kingdom
- Category
- Healthcare & pharma › Devices & animal health › Animal health
- Parent ticker
- EPA: VIRP
- Last verified
- · 1 sources
About Thyronorm
Thyronorm is a honey-flavoured oral solution of thiamazole for treating hyperthyroidism in cats, a disease that affects more than 10% of senior cats; in the United States it is sold as Felanorm. On 16 December 2025 Virbac completed the purchase, for €112.4 million, of Norbrook Licences Ltd of Northern Ireland, since renamed Virbac NI, which holds the product's rights, patents and intellectual property. Norbrook still manufactures it. Sales are about €15 million a year, and in Europe distribution is moving from Boehringer Ingelheim and Elanco to Virbac over several years.
Ownership timeline of Thyronorm
Where Thyronorm sits in Virbac
Controlling ownership as of . Brands grouped under the entity that owns them; large groups are collapsed.
Open the full Virbac ownership tree →
See the full Virbac brand portfolio (5) →
Other brands owned by Virbac
Virbac controls 5 brands on Brandtree, 3 of them in healthcare & pharma.
Also in healthcare & pharma
Other brands in animal health, and who owns them
The 16 brands in animal health on Brandtree belong to 4 owners. The largest is Neogen, with 5; Virbac has 3.
| Brand | Owner | Owner based in |
|---|---|---|
| IDEXX Catalyst One | IDEXX | 🇺🇸 United States |
| BotVax B | Neogen | 🇺🇸 United States |
| Daxocox | Animalcare | 🇬🇧 United Kingdom |
| IDEXX inVue Dx | IDEXX | 🇺🇸 United States |
| IDEXX ProCyte One | IDEXX | 🇺🇸 United States |
| IDEXX SediVue Dx | IDEXX | 🇺🇸 United States |
| IDEXX SNAP | IDEXX | 🇺🇸 United States |
| Ideal | Neogen | 🇺🇸 United States |
About the owner: Virbac
Virbac is a publicly listed company headquartered in Carros, France, founded in 1968. Brandtree records 5 brands under its control, and it is listed as EPA: VIRP.
Virbac SA is a French animal-health company, established in 1968 in Carros by the veterinarian Pierre-Richard Dick, that makes and sells medicines, vaccines, health products and pet food for companion and farm animals. Its shares are listed in compartment A of Euronext Paris, and at the end of 2025 the Dick family group held 50.09% of the capital and 66.21% of the voting rights. Revenue in 2025 was €1,465 million, 869 million of it from companion animals. It has about 6,400 employees, sales subsidiaries in 36 countries and production sites in 12, and it bought Japan's Sasaeah group in April 2024, Türkiye's Mopsan in December 2024 and the rights to Thyronorm in December 2025.
🇬🇧 Thyronorm and other British brands
Brandtree records a controlling owner for 554 brands that began in the United Kingdom. 292 of them (53%) are now controlled by a company headquartered in another country, Thyronorm among them.
- Daxocox — Animalcare 🇬🇧
- VitalityHealth — Discovery 🇿🇦
- A.1. — Kraft Heinz 🇺🇸
- ASOS Design — ASOS 🇬🇧
- Aero — Nestlé 🇨🇭
- Air Partner — Wheels Up 🇺🇸
Frequently asked questions
Who is the parent company of Thyronorm?
The parent company of Thyronorm is Virbac, a publicly listed company headquartered in France.
Is Thyronorm British or French?
Thyronorm originated in the United Kingdom, but it is owned today by Virbac, which is headquartered in France. So Thyronorm is a British-origin brand under French ownership.
Since when has Virbac owned Thyronorm?
Virbac has owned Thyronorm since 16 December 2025.
Is Thyronorm still owned by Virbac?
Yes. As of 23 October 2026, Thyronorm is still owned by Virbac. The ownership record was last checked against primary sources on that date.
Sources (1) & corrections
Last verified . Every ownership fact above is backed by one of these primary documents. Numbers in brackets in the text refer to this list.
- [1] Virbac — Annual Report 2025 — Virbac SA, Annual report, published 27 April 2026; retrieved 23 October 2026.
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