Virbac Australia

Health Care

Score 3.7 (3 Votes)

Are you unsure about desexing your dog?

Watch the video to hear what pet owners have to say about a medical alternative to surgical desexing of male dogs

Medical castration - desexing for male dogs

Medical castration is a temporary non-surgical solution for desexing male dogs. It is a resorbable contraceptive implant administered by your veterinarian. The implant is inserted like a microchip beneath the skin between your dog’s shoulders during a consultation, there is no need to leave your dog for the day. Medical castration does not need your dog to have a general anaesthetic or surgery.

For male dogs, medical desexing (castration) provides the benefits of surgical desexing without surgery, general anaesthesia or testes removal. The implant is gradually resorbed by the body and does not need to be removed.

Once the implant wears off, the dog’s fertility will gradually return.*  If you would like to continue the effect of medical castration then a new implant can be administered at either six or twelve months after the initial implant as recommended by your veterinarian.

Why desex your male dog?

  • Medical reasons - Undesexed dogs can develop various diseases such as testicular cancer or prostate enlargement.

  • Behavioural problems - Some behaviours of the male dog, for example excessive libido, urinary marking, and roaming may be driven by testosterone in the male dog. Desexing can help to reduce or eliminate these behaviours.

  • Prevention of unwanted reproduction - Medical castration can be used to avoid unwanted reproduction, especially when a female and a male live in the same household.

Find out more about medical dog castration

Talk to your vet to find out if medical castration may be suitable for your dog.

* Discuss with your veterinarian prior to use in a breeding dog.


After a year of searching for a new companion, my husband and I found Camo, a French Bulldog. When the time came to castrate him we were concerned it would alter his bubbly behaviour, and we also wanted to keep our options open with regard to future breeding. With this in mind, we chose to trial medical desexing. It worked perfectly, we still had our bubbly little bulldog and it kept our options open for the future.

- Amanda, owner of Camo, a 2 years old French Bulldog

Vote for this content: 5 4 3 2 1