The best ever FELIWAY®, for enhanced serenity!
FELIWAY® Optimum Refill

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- Scratching
- Urine spraying
- Tension & conflict between cats
- Hiding
- Reactions to changes
FELIWAY® Optimum Refill requires a FELIWAY® Diffuser (diffuser not included) and should be plugged in continuously. Screw the vial into the diffuser head and plug it into an outlet with the vents up.
Please note: an additional discount code cannot be applied to a subscription
- Refill Vial(s) Only - No Diffuser Head
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Find quick, expert-backed answers to the most common questions about FELIWAY, cat behavior, and how to create a stress-free environment for your feline friend.
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How to use FELIWAY Optimum effectively


FELIWAY Optimum is the most effective solution for soothing stressed cats thanks to the latest advanced pheromone discovery. It helps reduce a wider range of signs of stress in many situations, providing enhanced serenity at home.
🐾 Backed by over 25 years of feline stress expertise and scientific research
🐾 Thousands of 5-Star ratings
🐾 #1 Vet-recommended brand
🐾 Patented formula - a unique feline pheromone complex
🐾 Helps cats with more signs of stress, in more situations, and calms cats better than ever.
🐾 Drug Free
FELIWAY Optimum is available in 30 day, 90 day and 180 day refill packs.
*Field Substitution study: Ceva Santé Animale Internal report CLT-D921-1804 (2018)