Use of Suprelorin is not recommended in dogs which are intended for breeding purposes.
The effects on sperm quality and production are unknown.
Taken from the data sheet:
"The ability of dogs to sire offspring following their return to normal plasma testosterone levels, after the administration of the product, has not been investigated...data demonstrating the complete reversibility of clinical effects (reduced testicular size, reduced ejaculation volume, reduced sperm count and reduced libido) including fertility after six months, or repeated implantation, are limited."
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