Contraception in Dogs and Cats.

Although surgical sterilization is the most common approach to reproductive management of dogs and cats in North America and many other places, there is growing interest in nonsurgical and reversible methods. This review summarizes the methods currently available for use as reversible contraception in dogs and cats, along with cautions about reported side effects. The products covered include synthetic steroid hormones, peptide hormone agonists, vaccines, and a barrier method.