The FELIWAY Optimum is a patented pheromone discovery developed by the number 1 vet recommended brand to help reduce common signs of stress in cats, such as scratching, urine spraying, conflicts between cats and excessive hiding. With a drug-free, non-sedating formula, this refill helps to deliver natural calming. Simply place in your diffuser to continuously release calming pheromones up to 30 days. Instructions and precautions: Plug into a standard electrical outlet in your cat's favorite room. For best results, keep the Feliway diffuser plugged in 24/7 and replace the refill bottle about every 30 days.

FELIWAY diffusers are drug-free, non-sedating, and have been used by millions of cat families to help ease cats stress related behaviors by sending them reassuring messages, similar to natural pheromones.
Cat owners reported a 70%+ reduction in scratching, urine spraying, conflict, and hiding when using FELIWAY Optimum.
FELIWAY is backed by over 25 years of feline stress expertise and scientific research.
The diffuser continuously releases calming pheromone analogs up to 30 days, to help comfort your cat. Simply plug into an open outlet with 4+ feet of space to diffuse, with vents pointed upright. Safe to use - while pheromone analogs may help your cat, they wont affect humans or other pets.
Starter kit includes 1 diffuser and 1 vial; make sure to only use a FELIWAY Diffuser with a FELIWAY Optimum Refill (they are not compatible with other brands). To maximize effectiveness, use one diffuser per 700 sqft, replace the vial once a month, and the diffuser every 6 months.