Just got off the phone with the repro vet. A friend had recommended getting a Suprelorin implant for Spyro to suppress her heat cycles until I am ready to breed her. The implant is not FDA-approved for bitches, but this repro vet did a pilot program where they did offer it for bitches for a while. Then they pulled it, and now it's back on their website again. So I called them about it.
She explained that the implant is an injection like a microchip, and it releases a drug to suppress the heat cycle. They offer a 6 month dose and a 12 month dose, though how long it actually lasts depends on the bitch's metabolism.
The implantation leads to a surge of hormones, which can induce a heat cycle, but after that, it suppresses the cycles until the implant runs out or is replaced.
Sounds like a wonder drug!
They now only offer it for bitches who cannot be spayed for medical reasons, such as a heart issue that makes surgery impossible. Longterm use of Suprelorin tends to create cysts in ovaries, which can lead to prolonged or unending heat cycles, lethargy, and in severe cases, anemia.
The vet's recommendation for a bitch that you want to breed is just to breed her, then either spay or OSS spay if you don't want to deal with heats. She does not recommend fucking with the hormones of a bitch that you want to breed. Cycling is important for the bitch's body to keep all the reproductive equipment in working order.
So that answers my questions, and I will not be getting the implant for Spyro.









