Virbac UK Veterinary
Caution, This content is for veterinary professionals.


There’s more than one way to crack a nut

It is now common for pets to be considered a part of the family and with recent research showing that 25% of pet owners are concerned or very concerned that neutering could be harmful for their dog, Suprelorin® is now playing a key role in practice by providing an effective solution for owners who either want to see the effects of surgical castration or who wish to keep their pet intact

Suprelorin® is a sustained release implant that contains deslorelin acetate (a GnRH super agonist). It is used in healthy, sexually mature dogs and ferrets that have not been neutered to make them temporarily infertile. The implant is inserted subcutaneously, under the loose skin on the back between the lower neck and the lumbar area in dogs and between the shoulder blades in ferrets. Suprelorin effects can be seen at about six weeks in dogs and between five and 14 weeks in ferrets. The effect continues for six months in the case of the 4.7 mg implant for dogs and 12 months in the case of the 9.4 mg implant for dogs (16 months for ferrets), after which the dog and ferret can be re-implanted if necessary.

Suprelorin How to implant a dog

Everything you need to know about Suprelorin

The active substance in Suprelorin®, deslorelin, acts like the natural hormone gonadotropin-releasing hormone (GnRH) which controls the secretion of other hormones involved infertility. Suprelorin is given as an implant that slowly releases a continuous low dose of deslorelin. This suppresses (blocks) the production of follicle-stimulating hormone (FSH) and luteinising hormone (LH). As a result, in male dogs and ferrets less testosterone circulates in the blood, the dog and ferret stop producing sperm and its libido is reduced.


Product Features & Benefits: 
Enables owners to see the effects of castration before opting for surgery 
Available in packs of two 
Licensed for both dogs and ferrets 
Available as half-yearly and yearly implants

Presentations Available: 
Suprelorin 6 – box of 2 implants – 4.7mg deslorelin
​Suprelorin 12 – box of 2 implants – 9.4mg deslorelin

Related products
Reproduction article
Video resources