🐾 Pheromones that Purr-fectly Calm Your Cat! Non-sedating and drug-free, FELIWAY is safe for both cats and humans. Each refill lasts up to 30 days, ensuring your feline friend feels secure. Developed by the #1 vet recommended brand with over 25 years of feline stress expertise. Over 70% of cat owners report significant improvement in scratching, spraying, and hiding. Reduce stress-related behaviors with patented pheromone technology. Drug-free calming solution 70% stress reduction 30-day continuous release FELIWAY Optimum is a patented pheromone refill designed to alleviate stress in cats, reducing unwanted behaviors like scratching and hiding. Each diffuser provides a continuous release of calming pheromones for 30 days, ensuring a tranquil environment for your feline companion. Backed by extensive research and veterinary recommendations, this drug-free solution is safe for all pets and humans.