Chilean scientists develop reversible neutering drug

Reuters, SANTIAGO

Findley is a lucky dog. The small white and brown Chilean terrier is one of the first dogs in the world to get neutered without having to go under the knife.

The procedure was done in his home in Santiago while he was held by his owner, receiving treats during and after, and he later scampered off like nothing had happened.

There was no sedation or surgery, just a simple injection that the developers say is an immunocastration vaccine called Egalitte.

A veterinarian prepares a dog before it receives a reversible vaccine for neutering in Santiago, Chile, on Thursday.

Photo: Reuters

Leonardo Saenz, a veterinarian and professor at the University of Chile who developed the vaccine, said it works by blocking the hormone in charge of reproduction and is reversible.

“If we have [that hormone] blocked, we don’t release gonadotropin and therefore don’t release sexual hormones and the animal is in a state of castration,” he said.

The vaccine can be used for male and female dogs and costs about 50,000 pesos (US$54). It requires a veterinarian’s prescription and evaluation to ensure the dog is a suitable candidate.

The product could also help neuter animals on a wider scale since it’s less invasive and complicated than surgical castration, Saenz said.

“An injection is a lot easier and you can vaccinate a larger number of animals if you need to do reproduction control,” he said.

The simplicity and ability to have the castration reversed is what made Findley’s owner, Tamara Zamorano, pick the procedure.

“With the other treatment, castration, we were a little afraid,” Zamorano said. “Aside from being simple, it’s reversible, so if we want to breed him, when the time is right, we can.”

Findley did not comment on the procedure, but he did squirm a bit during the injection. Later, he happily licked the veterinarian’s hand and continued on with his day.


Leave a Reply

Your email address will not be published. Required fields are marked *