Does this work better than the Classic? I feel like my cat is getting used to the Classic and it doesn’t calm him as much as it used to.

I have used the multi- cat on & off for years with excellent results, but I wanted to give the optimum. Not sure if it's necessarily better (both are equally effective for us) but it definitely works faster. For your situation, switching to a different formula is worth a shot.

Can the same diffuser i have for the multi cat be used for this?

The instructions actually say to not use another brands diffuser for the refills, and not to use another brands refills in the diffuser. It does not specifically say to not use another one of their own diffusers. I will say I used my old multi cat diffuser and it was fine and worked well.

Can this be plugged in 220v or just 110v?

I believe it would only be safe to use in 110 volt.

Can you use this in a dog friendly home with two cats?

You may want to contact Feliway directly for the best answer. That said, the cat pheromones shouldn't effect your dog. If your dog is a chewer I recommend plugging in somewhere the dog can't reach it since it's ball shaped (or train the dog that it's strictly off limits).

Optimum Enhanced Calming Pheromone 30 Day Refill 3 Pack

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Description

😺 Unlock the ultimate chill zone for your cat—because calm is the new cool!

WHOLE HOME CALM - Each diffuser blankets up to 700 sqft, ensuring your entire living space becomes a stress-free sanctuary for your feline friends.
TRIPLE REFILL POWER - Three 30-day refills per pack keep the calm flowing for 90 days—because your cat deserves uninterrupted peace.
EFFORTLESS INTEGRATION - Plug in, relax, and watch stress melt away—no complicated setup, just pure feline tranquility at your fingertips.
SCIENCE BACKED SERENITY - Patented pheromone formula proven to reduce urine spraying by 77% and scratching by 73%, transforming your cat’s mood.
VET TRUSTED DRUG FREE - Endorsed by vets and free from sedatives, it’s a safe, natural way to ease your cat’s fears and tensions without side effects.

FELIWAY Optimum Enhanced Calming Pheromone 30-day Refill 3-Pack offers a patented, vet-recommended formula that reduces common cat stress behaviors by over 70%. Each refill provides up to 30 days of continuous calming support, covering large areas up to 700 sqft, making it ideal for multi-cat households and spacious homes. Drug-free and scientifically tested, this pack ensures your cat experiences sustained serenity with easy-to-use diffusers.

Specifications

ASIN	B09V9VSY53
Best Sellers Rank	#19,339 in Pet Supplies ( See Top 100 in Pet Supplies ) #457 in Cat Health Supplies
Brand	FELIWAY
Color	Clear
Customer Reviews	4.4 4.4 out of 5 stars (11,115)
Date First Available	14 April 2022
Item Weight	231 g
Model Number	D92150B
Package Dimensions	10.21 x 9.4 x 8.79 cm; 231 g

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€ 164.72

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In stock

Sold byAmazon SlovakiaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Slovakia.

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Optimum, Enhanced Calming Pheromone 30-day Refill – 3 Pack

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Common Questions