My partner&#x27;s cat had a urinary blockage that caused him to pee everywhere for several months before it was figured out that it was a physical issue (it coincided with moving to a new place, so it was assumed to be stress). They pee everywhere because it&#x27;s painful to urinate, so they hold it until they can&#x27;t anymore. It can be a life-threatening condition. But, it&#x27;s also thought to be exacerbated by stress, so maybe taking Prozac reduces the stress and prevents the blockage from progressing.