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3 PACK FELIWAY CLASSIC Refill for Cats (144 mL) Video
3 PACK FELIWAY CLASSIC Refill for Cats (144 mL) Video

3 PACK FELIWAY CLASSIC Refill for Cats (144 mL)

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Is your cat peeing outside the litter box, scratching or hiding?

These behaviors are likely caused by fear and anxiety.

FELIWAY CLASSIC products are a clinically proven, drug-free solution to help alleviate many of the unwanted behaviors cat owners deal with.

FELIWAY CLASSIC refills provide "happy messages" to cats to make them feel calm and comfortable at home. By mimicking the natural feline reassuring messages (pheromones), FELIWAY CLASSIC helps cats happily adjust to pace of modern life.

Use FELIWAY CLASSIC refill vials along with the FELIWAY CLASSIC diffusers (sold seperately) if your cat shows signs of discomfort like peeing outside the litter box, hiding, or destructive scratching. Reduces urine spraying in 9/10 cats. Can see results within 7 days. You may also consider if you anticipate changes in your home (moving, renovation, redecorating, arrival of a new pet, arrival of a new family member).

Use the diffuser in the room where your cat spends the most time. FELIWAY CLASSIC Refill vials include one refill vial (diffuser head sold seperately). It is recommended to replace the refill every 4 weeks, even if a small amount of liquid remains in the vial (the vial will never be completely empty).

  • #1 brand used and recommended by veterinarians.
  • Clinically proven to work. Reduces urine spraying in 9/10 cats. Can see results within 7 days.
  • Drug-free solution that helps reduce signs of stress such as peeing outside the litter box, scratching and hiding.
  • CLASSIC Refill includes one vial per package that lasts up to 30 days (diffuser head sold seperately).
  • 100% satisfaction guarantee.

Useful Information

  • FELIWAY® Diffusers should be placed where the cat spends the most time. If you are considering this product for a cat peeing outside the box, you can also place the diffuser in the room where the cat is urine spraying most often.
  • FELIWAY® Diffuser should be used for at least 30 days. Most behaviors will show improvement within 7 days, including peeing outside the box and scratching furniture. Depending on the behavior, you may need to continue using the FELIWAY® Diffusers longer than 30 days.
  • When choosing a plug for the FELIWAY® Diffusers, make sure there is nothing above the outlet that will obstruct the airflow and diffusion of the pheromone. It should not be placed under a cabinet, behind a couch, or near an open window.
  • Refills will last up to 30 days but some variations may occur depending on air flow and ambient temperature within the room.
  • One diffuser will cover up to 700 sq ft in an open floor plan. The diffuser will not diffuse pheromone outside of any given room though. Given the size, floor plan, and where your cats spend the most time, you should consider getting more than one diffuser.
  • Diffuser heads should be replaced every 6 months.
  • Newly plugged in diffuser units may have a slight odor for the first 24 hours, but it may last up to 72 hours. Pheromone diffusers are made of self-extinguishing plastic and comply with the International Electro-technical Commission (IEC), European (EN) and UL required standards.

HAZARDS TO ANIMALS: Keep out of reach of children.


Do the Feliway diffuser refills fit other brands of diffuser systems? No. The Feliway refills should never be used with another brand of a diffuser device. The pheromone technology is designed to work at a certain temperature that is specific to Feliway diffusers.

What pheromone is in Feliway? The pheromone released by Feliway is the synthetic copy of the natural comforting pheromone released from the mother cat's mammary area during the nursing period. This appeasing pheromone helps maintain the bond between the kittens and their mother and helps kittens feel safe and secure. The scientific team at Ceva has found that this pheromone can help reduce tension and conflict between cats in the home.

Can I use Feliway with a young kitten? Yes. There is no minimum age for using Feliway pheromones. Kittens are able to perceive pheromones in the environment and respond accordingly.

How long should I use Feliway? It depends on the nature and the extent of the reason you are using the product. The minimum recommended duration for most situations is 1 month. But some situations may benefit from permanent use.

What type of behavior problems may not be helped by Feliway? Feliway has been tested in households where there is tension and conflict between cats. Feliway has not been tested for aggression toward the owner(s). In this situation, consulting your veterinarian or a behaviorist is strongly recommended.

Should I unplug Feliway diffuser at night? No -- the diffuser should be plugged in continuously day and night. Frequent unplugging may prevent the diffuser from working properly. Efficacy was demonstrated in clinical trials with non-interrupted use of the diffuser allowing the cat to constantly perceive the pheromone’s signal. Furthermore, cats are awake and active even at nocturnal times.

Can I use the diffuser in a room with air-conditioning? Yes, a diffuser can be used in a house (or a vet clinic) where there is an air-conditioner, provided that it is not plugged in near the air-conditioner, vents, cold air returns, or exhaust fans. Being near additional air-flow may accelerate the diffusion process and the refill vial may not last a full 30 days.

How can I tell if my diffuser is turned on or working? When the diffuser is plugged into a working outlet, the diffuser head will be warm to the touch.

Can I use the diffuser while leaving the windows open, particularly in the summer? Will that affect the efficacy? Usage with open windows or heavy air flow may result in diffusion at a faster rate. The product may not last the full expected 30 days. In such a case, a different diffuser location should be considered within the house, targeting the area where the cat(s) spends most of its time.

Customer Reviews

Review Summary
291 Reviews
73% (212)
20% (59)
4% (13)
1% (2)
2% (5)
97% Recommend this product (283 of 291 responses)
By Rose
So Cal
October 5, 2020
Works well to keep my kitty calm.
  • Easy to plug in and use.
  • A bit expensive.
By Thikacat
New England
A must for a multicat household
September 13, 2018
I bought my first Unit of this when I was introducing a new kitten, and I have never been without one since then. They help.
  • They calm the waters
  • Don't last long
By Lynn5642
Maricopa, AZ
Changed my cat's attitude
July 3, 2018
I've used Feliway for years to help my two cats, who hated each other, get along. I'm down to one cat now, and have moved him to a new home far far away from the old one. Recently he's been depressed, hanging out in a dark room, seldom coming out to hang out with us. I put the Feliway in the room he was hanging out in and one in the kitchen. After about 5 days he was back to his social self, full of love and craving attention. This stuff is great!
Surprisingly great
October 6, 2017
The change in my cats behavior was extremely noticeable within two days
My scaredy-cat is not scared anymore ,
Both cats are calmer .
Great product - Does the job it's meant to do
By Hello
This does calm the cats...
May 28, 2017
There is a difference from when the bottle is empty and I don't realize it...Our cats are not "cured" but, we do see the nervous behaviors much less.
They are nervous that our son's sweet but, cat chasing dog is going to unexpectedly show up....
Sadly, thhe sweet dog doesn't get to come any more.
By JSue
Problem solver
April 29, 2017
I have used the Feliway/diffuser to deal with cats
not using the litter box and with problems that cats can have getting along in a multicast house
I have found it helpful in both of those areas..
By Kit C.
Suburban Chicago
Great product
January 5, 2017
I have used this for years and it works. My 2 cats were born to a feral cat on my patio. I had some problems with non litter box use by one. This problem was 99% eliminated by using this product.
By Thika
New England
A must for a multi cat household.
December 30, 2016
This just helps keep the peace and makes everyone a bit calmer. Great for introducing a new cat as well.
By Jan
Jackson, Michigan
Review for 3 PACK FELIWAY CLASSIC Refill for Cats (144 mL)
October 28, 2016
I've used this with my stressed out Siamese kitty and it does help him. He is also on an oral medication prescribed for him by the veterinarian. Together these things do work. I'm very pleased.
Keystone HeightsFL
Best thing I did for my 14 year old cat
October 21, 2016
My 14 year old cat was very anxious. After taking her to the vet and having tests done and nothing was out of kilter, I was so sad to see her like this. A coworker told me about the Feliway diffuser. So I purchased one and in a couple days she had calmed down. I have one plugged in all the time now and I can tell when I run out without even looking because of her actions. It is amazing! I would recommend it to anyone!
By Finnian
Central California
Stopped Male Spraying
September 25, 2016
After introducing a 3rd neutered male cat into my home one of the other neutered males began spraying his favorite throw pillows in the living room. I ordered one unit of Feliway Diffuser and plugged it into a socket near the couch. The spraying stopped immediately. I forgot about the issue until 10 weeks later, when a spraying incident occurred. I am here today to reorder!
By Jo
East Syracuse, NY
August 11, 2016
Great value and fast shipping on a product that has worked so positively for a very shy, reclusive rescue kitty.
By cee
feliway diffuser great product
July 22, 2016
The feliway diffuser is the only product that truly calms my cat. This is one nervous cat, doorbells, water from hoses and all loud noises send my boy hiding. My cat is much calmer and doesn't need to hide anymore. That makes me happy! The price of Feliway at Entirely Pets is a good deal. It arrives on time with no problems. Excellent product and good price. Highly recommend to anyone with nervous cat(s).
By krussell
Belleville, IL
A calmer kitty
July 18, 2016
This is the 1st time I've used the Diffuser, always used the spray in the past. I really like this product & it helped my female cat stay calm while we were gone on vacation. My vet also recommends this & uses it. Now I keep 1 plugged in on a regular basis. The bottle last about 6 weeks so the 3 refill deal really saved me some money.
July 5, 2016
By debbie
Review for FELIWAY CLASSIC Refill for Cats (48 mL)
February 9, 2016
Good product. Have been using this for awhile now for my 3 cats.
By Cat L.
great product
January 18, 2016
I have 3 cats one of which was displaying behavioral problems. Since I've used the Feliway Diffuser she has returned to using the litter box and appears calm and content.
By animal l.
Review for FELIWAY CLASSIC Refill for Cats (48 mL)
January 13, 2016
the product worked as advertised we have used before but our vet wasent able to get so ordered from entirely pets will order again when needed our male cat started spraying this product did the job thank you if not we would have been forced to make a decision I didn't want to have to make
By ???
January 3, 2016
Seems to work well in helping to calm down anxious cat behaviour.
By manycats
Review for FELIWAY CLASSIC Refill for Cats (48 mL)
December 23, 2015
Feliway seems to work.
It's by no means a cure-all or miracle, but over past few years when stress was high among my cats, it seemed to help a couple of them.
I do believe it is worth a try to reduce stress in cats.
By Grandma L.
Tucson, Arizona
Peace for Gabbie
December 21, 2015
Feliway helps my cat Gabbie live a much calmer life than she would otherwise have. Without Feliway, when she is anxious she darts here and there and yelps out in pain. Feliway restores her peace.
By crazy x.
Feliway Diffuser
December 10, 2015
We love the Feliway diffuser/plug-ins! Our vet recommended for our multi-cat household during the process of moving. We have one 'sensitive' kitty, and the pheromones help the stress levels. It benefits all 3 cats. Our vet recommended a second diffuser for our new home, and get it going there while keeping one in the old home until the move is complete. So far this has helped their anxiety levels and I hope it helps them adjust to new home easier.
By meme
trial and error-I think it helps!
October 31, 2015
AM not sure the Felway is as effective for each cat--but it definitely has helped some of my menagerie to behave better-I had scratching post being made out of a doorway by one cat (we moved here in Aug 2015)--that seems to have stopped though it took several applications of spray--another guy was spraying on counter-I put a diffuser there and that seems to have ceased completely. I am convinced it is at least effective for some of my 5 cats !! so will continue to use.
By darecka
Sun City, AZ
Best Purchase for my pet
October 25, 2015
I used to get this all the time. It's getting so hard to obtain at a reasonable price now. It's the only thing that calms my cat and it's so hard to afford or find. So sad...
By ridgetop
dallas, tx
seems to work
October 8, 2015
the cats seem happier with the product in the air
By none
feliway refills
September 27, 2015
Good stuff--what else do you want me to say???
By Grace
best buy for our cat
August 16, 2015
We have a very intelligent but high strung cat. We purchased the Feliway diffuser and refills and what a difference this has made in her behavior. The price at Entirely Pets is much less than the local pet store even with shipping added to the price!
By Gorgie
Super Helpful Feliway Diffuser
July 27, 2015
The Feliway Diffusers help with new and stressed kitties. Daily use helps keep a calm household for new and established cats.
By cshrd
June 22, 2015
While preparing for a major house remodel, my vet recommended Feliway. I have two cats (a 6 year old and an 18 year old) that lived in separate rooms and I had to combine them in one room. My senior cat is a sweetheart; the 6 year old a bit agressive a times so I was worried. Three weeks into the project they are now peacefully co-existing and the 6 year old has become much more friendly to me. We still have a month to go and I will keep using the product after the remodel until everyone is used to the changes. I definitely believe Feliway has helped us all get through this.
By Aunt S.
Feliway is great
June 16, 2015
I have used this for years and have always been glad to know about it. My neighbor and I have been working with a feral cat colony on our property and have had to relocate them to a farm. As we trap them, my neighbor keeps them in several pens in her living room for a week or so until the new caretaker picks them up. We use a diffuser with the Feliway refill and the cats are very calm and mellow by the time they leave. My neighbor is a Feliway believer now!

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