Abortion

It’s a controversial subject among humans, but less so as applied to cats. The fact is that sometimes a cat owner finds that a female pet is pregnant, and the morning-after drug ECP can only be used within the first forty hours after mating.

A veterinarian can inject the female with prostaglandin, which usually induces abortion, and it can be done up to forty days after the cat has mated. This isn’t done often because it makes cats sick, and some have died after the injection.