Did you know there is an alternative to surgical castration?

Medical castration is a 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 with your veterinarian; 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 (castration) 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.

*Discuss with your veterinarian the expected length of time especially in breeding dogs.

Click below for frequently asked questions about non-surgical castration.

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Why desex your male dog?

desexing for medical reasons

Medical reasons

Desexing significantly reduces the chance of various diseases such as prostate enlargement.

desexing for behaviour problems

Behavioural problems

Desexing can help to reduce or eliminate humping (excessive libido), urine marking, and roaming.

desexing for unwanted litters

Prevention of unwanted litters

Medical castration can be used to prevent unwanted or unplanned litters.

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

Want to know more?

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


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