Health Care

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Are you unsure about desexing your dog?

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Did you know there is a reversible, alternative to surgical castration which offers the same benefits without surgery?



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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.

Hear why Carol chose medical castration for her dog Alfie

What is mediCal castration? Watch Dr David Ward discuss its simple implantation during a consultation


Listen to veterinary nurse Maria discussing medical castration


Why desex your male dog?

desexing for medical reasons

Medical reasons

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

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

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.


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