The use of Fentanyl Patches on Cats

Fentanyl patches - the why and the how

When your cat requires consistent pain relief, especially after surgery, we may use a fentanyl patch to ensure they remain comfortable during recovery. 

Here’s an overview of how the patch works and what to look out for when your cat has one applied.

Why use a fentanyl patch?

A fentanyl patch delivers a steady dose of pain relief to cats who are experiencing significant discomfort. 

While it’s not typically used for managing mild pain, like osteoarthritis, it is highly effective for post-operative pain or more severe conditions. By providing a continuous release of fentanyl through the skin, the patch helps maintain consistent pain control without the need for frequent medication doses.

How is the patch applied?

The fentanyl patch is carefully glued to your cat’s skin, and a light dressing is placed over the top to keep it secure. You’ll notice the dressing is labelled with important details, such as the name of the medication, when it was applied, and when it is expected to expire. Typically, the patch provides pain relief for around 72 hours, though this may sometimes extend a bit longer.

Key precautions

It’s important to keep an eye on your cat to ensure it doesn’t pull off or ingest the patch. If you notice your cat paying unusual attention to the area where the patch is applied, please contact us immediately. We can provide an Elizabethan collar (also known as a cone) to prevent your cat from accessing the patch and causing harm.

Once the patch has expired, we’ll give you clear instructions on when to remove it. Simply place the used patch into a plastic bag and dispose of it in the bin.

“A fentanyl patch delivers a steady dose of pain relief.”

Are you worried about your cat’s health?

If you are concerned about your cat, please reach out to our friendly team. Call us on 1300 228 377 or fill out the contact form below. In an emergency, please contact your local vet.

For vets – to refer a patient or book a telehealth consultation, please call us on 1300 228 377, book through the portal or fill in the form.

Meet The Author

Dr Rachel Korman

Specialist in Feline Internal Medicine

BVSc MANZCVS (Internal Medicine) FANZCVS (Feline Medicine)

Dr. Korman’s childhood love for cats led her to veterinary medicine, and early on, it was clear that feline care was her calling. After graduating from the University of Queensland in 2000, she worked in small animal and feline-only practices across Australia and the UK.

She received a Senior Clinical Training Scholarship from the Feline Advisory Bureau (now International Cat Care) at the University of Bristol, where she researched feline infectious and haematological diseases, and in 2018, became a Fellow of the Feline Medicine Chapter of the Australian New Zealand College of Veterinary Scientists and a registered Feline Medicine specialist.

Frequently Asked Questions

What is a fentanyl patch used for in cats?

A fentanyl patch is used to provide continuous pain relief. It is often used for post-operative pain or other severe discomfort

How does the fentanyl patch work?

The patch releases fentanyl slowly through the skin into the bloodstream. This helps maintain consistent pain control without frequent medication doses.

How long does a fentanyl patch last on a cat?

The medication usually provides pain relief for around 72 hours. In some cases, it may last slightly longer depending on the situation.

How is the patch applied to a cat?

The patch is glued to the skin and covered with a light dressing. The dressing usually includes details such as the medication name and when it should be removed.

What precautions should owners take with fentanyl patches?

Owners should ensure their cat does not chew or remove the patch. If the cat begins paying attention to the patch area, it is important to contact your veterinarian.

Patient Stories

Our commitment to feline health is best seen in the stories of the cats we’ve had the privilege of treating. These journeys highlight the dedication, expertise and compassion that drive us.

Each patient faced unique challenges, and it was our honour to offer high-quality care and help them regain strength and happiness. We value the deep bonds with cats and their owners, knowing the difference we make in their lives.

Kitty, a lymphoma survivor

We first met Kitty after she was referred to CSS for the evaluation of a large intestinal mass

Poppi finds her feet again

Following surgery to remove a hairball obstruction, Poppi was referred to us at CSS as she had not bounced back as expected

Rusty and his ongoing chronic rhinitis journey

Lifelong nasal issues, including persistent discharge and breathing noise, have been a bit of a thorn in Rusty’s side.

Lando’s long game with cryptococcus

Lando was referred to CSS because he had a swelling under his jaw that wouldn’t go away.

Popeye coughs up the culprit

Ares is a handsome young Maine Coon who was referred to CSS after presenting at AES with sudden lameness in his back leg.

Key Takeaways

They are commonly used after surgery or for severe pain conditions.

The patch releases medication steadily through the skin for consistent pain control.

A single patch typically provides pain relief for around 72 hours.

Cat Specialist Services Reviews on

Tanya Bell

6 months ago

We transported our cat here from another animal hospital, as his condition was too complex for them. Our pet was given the highest quality of care, multiple investigations/procedures being able to be done at the one place a godsend. We were kept up to date frequently throughout his stay. All questions & options explained thoroughly. Being able to have private visits certainly helped us and our cat too. I would highly recommend Cat Specialist Services at Underwood. Amazing staff from reception, vet nurses, vets & specialists. Oh, and yes he is recovering wonderfully at home.

Melinda Cox

A month ago

So very happy we were asked to come here for advice for our NORBIT. He has had 2 x UTI blockages within weeks of each other since turning 6. Surgery seemed to be his only option and he didn’t feel it was very fair on him if we didn’t at least exhaust all other avenues first.

Dr Allison was very thorough in her tests and has let us know she would like to treat the cause of the problem. Great news.

It may lead to removal of crystals in his bladder if his diet doesn’t let him pass them naturally.

At least this surgery won’t be as severe at taking his penis off him – so as his fur parents – we are very happy with this.

We await further tests to see what’s in store for him.

NORBIT will now be a patient of the clinic as we are so far very happy with his treatment thus far.

Lesley Rosekrans

A month ago

Hi has only been a week since losing my beautiful Peaches but can’t thank Dr Cindy, Maree and Jackie enough for the tender care they gave her and they after care they gave me. I sincerely thank them and can’t recommend the Clinic highly enough they are such caring people. Peaches I’m happier times.

Madison McEwan

A month ago

I cannot thank the entire CSS team enough and especially Dr Cindy for the care they provided for our boy with a urinary blockage, and we will be taking both our cats here from now on. The clinic is exceptionally clean and calming compared to all other clinics we’ve been too, and all staff from the reception to the nurses/vets were so supportive during a stressful time. I knew from the first minute that I got to see him after he was transferred that he was in the best place, and that the staff genuinely care about their well-being and positive long term outcomes. We were given regular updates and full transparency, so much information including QR video codes on how to administer medications, along with print outs and emails about how to best help avoid future issues or recurrence. Our boy got to smooch on everyone and was beyond well looked after. Thank you again, you all made an incredibly stressful situation actually manageable and calming.

Astrid El Gamal

6 months ago

Dr Wan-Ju has been treating my baby since her first seizure in November 2025 and she has been fantastic.

Everybody at the clinic is so friendly and caring and I know my baby is in good hands.
Thank you team!

Deeba M

3 months ago

Dr Alison Jukes from CSS Underwood is an AMAZING feline physician. She is kind, professional, thorough and our cat is blessed to have her on his side. She even was able to save us money and invasiveness by being skilled to the level of doing ultrasound on two separate occasions without our cat needing to go under full sedation. Our other cat was recently seen by Dr Jukes as well, and she made sure our cat’s heart was ok. I also want to thank the lovely Jacqueline and Mairead from customer care. They are very kind each time I see them and call up. Sending thanks from our family, including Smokey and Floozy!

Judith Dionysius

A month ago

My whole experience with CSS was positive – from the first email I received giving lots of information regarding the process of radioactive iodine treatment to the expected costs, to checking my cat in for the treatment, boarding for 2 weeks after the treatment and picking her up to come home. They didn’t push for any tests that were not necessary.

Janelle Wieden

5 months ago

We never knew this service existed but we are very grateful we were referred to them. Our vet Cindy was really great, she made us feel at ease during a very stressful time. We got the sense straight away the Leo was in good hands. This service made us feel better knowing that they specialise is cats only. Would highly recommend their services

Georgia Carter

5 months ago

My Lani finished her I-131 treatment today and I am beyond impressed with the way she was looked after. I am by definition a neurotic pet owner and sending my fur child away for a week was seriously daunting.

I was given daily updates about how kitty was eating, toileting and behaving. This really put my mind at ease. Vets and vet nurses were so accomodating and allowed Lani to have her favourite foods from home prepared her favourite way.

Her vet was so thorough when explaining her treatment and condition to me.
The ladies at reception were so friendly and understanding.

I honestly cannot recommend this clinic enough and I am so thankful for the positive experience Lani and I have had.

Lauren Woodward

A year ago

My sweet ginger boy Louis was hospitalised at CSS for a Urinary Obstruction. Dr Cindy and all the reception staff were amazing and empathetic. I would often ring up with questions post procedure and Dr Cindy would make time to talk and explain things to me

Service Locations

Cat Specialists accepts referrals for cats across Brisbane and surrounding regions, working closely with local veterinary clinics to provide specialist diagnosis, treatment, and ongoing management.

Contacting Us

Pet Owners
If you would like to talk about treatment for your cat, call us on 1300 228 377 or fill in the form.
In an emergency, please contact your local vet.

Vets and Nurses
To refer a patient or book a telehealth consultation please call us on 1300 228 377, book through the portal or fill in the form. For advice calls, please see the guidelines here.

Monday-Friday: 8 am-6 pm
Saturday/Sunday - Closed

    Upload Files .png, .jpg, .jpeg, .pdf, .doc, .docx.