There are several methods other than medications to stimulate your cat's bowel movement. One of the most common remedies is to increase the water consumption for your cats because constipation is usually the cause of constipation. Other remedies include starting a new diet, maintaining a healthy weight, exercise, adding more litter boxes, fiber-rich feeds, and probiotics. If nothing else works, asking your vet for over-the-counter laxatives like Laxatone and Miralax is the last option.