Our Vets are Available 🟢
Dial A Vet Logo
🐾 Pet Health
Blogs
Dog HealthCat HealthVeterinary ServicesPet Health
ask a vet
Ask A Vet Q&A - Free!
resources
Free Symptom CheckerDial A Vet NZFind a Local Vet Clinic
about DIAL A VET
Terms & Conditions
Privacy PolicyEditorial GuidelinesNewsletter
View all Blogs
Over 6,000 Articles
View All Q&A
5,000+ Answers
💵 Pricing📖 How it Works📧 Contact
Chat to a Vet

Question:

Cat lymphoma - CHOP vs COP

I'm feeling pretty overwhelmed right now and could really use some advice from anyone who’s been through something similar. My beloved cat, Whiskers, was just diagnosed with lymphoma, and the vet has suggested two different chemotherapy protocols: CHOP and COP. I'm really torn because I want to make the best decision for her, but there’s just so much information to process. CHOP is apparently the more aggressive treatment and has a potentially higher success rate, but it also comes with more severe side effects. COP is said to be milder, which I think might be easier for Whiskers to handle, but I’m worried it might not be as effective. I’m really scared of making the wrong choice here and just want to do right by her. Anyone who’s been through this with their cat, I would greatly appreciate your insights or any suggestions you might have. Thanks so much.

Answer:

Hi there! I'm sorry to hear about your cat’s lymphoma diagnosis. Navigating treatment options can be daunting, but I'm here to help you understand the differences between the CHOP and COP protocols.



CHOP is a combination chemotherapy protocol using four drugs: Cyclophosphamide, Doxorubicin (Adriamycin), Vincristine (Oncovin), and Prednisolone. It's generally more aggressive and can be effective for achieving remission, particularly in higher-grade lymphomas. On the other hand, COP omits Doxorubicin, using Cyclophosphamide, Vincristine, and Prednisolone. This protocol is less intensive, potentially leading to fewer side effects, but it might not be as effective for certain types of lymphoma.



At home, keeping your cat comfortable is key. Ensure they're well-hydrated, provide a quiet resting place, and maintain a consistent feeding schedule. Monitoring for side effects like vomiting, diarrhea, or a decrease in appetite is crucial. If you notice these symptoms or signs like lethargy or a rapid weight loss, consult your vet immediately.



To make the best decision for your cat’s specific needs and personality, consider booking a video consult with a Dial A Vet professional. They can provide personalized advice and support to help you choose the most suitable treatment plan.

Answered by

Louise - Senior Veterinary Nurse, Dial A Vet

June 19, 2025

  Book A Vet Consultation
The "Ask a Vet" forum on Dial A Vet offers general information and helpful tips on pet health, but it's not a substitute for professional veterinary care. The advice here doesn't create a veterinarian-client-patient relationship, and our vets can't diagnose or treat your pet remotely. For emergencies or specific medical concerns, always contact your local veterinarian immediately. Your pet's health is unique, and decisions should only be made after consulting with a qualified professional. By using this forum, you acknowledge these limitations and agree to seek in-person veterinary advice for all your pet's health needs. View our content guidelines.
🧠 Related Pet Owner Questions
My little boy died. He was 4 yo
Louise - Senior Veterinary Nurse, Dial A Vet
⭐⭐⭐⭐⭐
BYOP: Bring your own poop?
Louise - Senior Veterinary Nurse, Dial A Vet
⭐⭐⭐⭐⭐
Am I over reacting to thinking I've been scammed & receiving the wrong care for my cat the past 2 years?
Louise - Senior Veterinary Nurse, Dial A Vet
⭐⭐⭐⭐⭐
Dog at Vitamin D Softgels
Louise - Senior Veterinary Nurse, Dial A Vet
⭐⭐⭐⭐⭐
Money Magazine
Australia's Leading
Online Vet
TrustPilot:
Excellent
Real Vets

Thousands of Pet Owners across the Globe rely on Dial A Vet for peace of mind.

Real questions, vet reviewed answers and quality care.

Trusted by 40,000+ users
4.7/5
dog in grass
Ina
Pet Owner

It was so easy, I needed some eye drops for my dog and thinking about going to the vet on a weekend made me nervous about the cost involved. Dial A Vet was a much simpler, cheaper option with faster results. Within 10 minutes of the call, I had the medicine I needed for my dog without an expensive consultation.

25 May 2025
Joanne
Pet Owner

A great fast efficient service with a qualified vet who was lovely and helpful. Thank you Samantha. I was able to sort my dog at 6pm on a Sunday night for $49 - amazing. Highly recommend.

12 May 2025
Lisa
Pet Owner

What an amazing service, at my wits end as I knew my beautiful dog had an ear infection, could not get into the vet for 4 days. Never knew there was vets online until I googled. Within 15 minutes on a Sunday I was taking to beautiful Samantha who diagnosed and treated our Jasper. Only $49. She trusted that we knew our boy and gave us lots of advice. I will definitely be using dial a vet every time and sharing with all my friends and family. Absolutely fantastic kind caring service. 11/10

7 April 2025
The logo for Dial A Vet, the online vet company.

With Dial A Vet, expert veterinary advice is just a tap away. Get fast vet consultations, trusted care, and personalized pet support—anytime, anywhere, all year round.

Dial A Vets uses software that is HIPAA compliant and SOC - 2 Certified.

support@dialavet.com.au

dial a vet owner with cat
dial a vet pet owner with dog in a orange top
colourful pet owner with their dog
40k+
Pet Owners
Fluffy stuff
Terms & ConditionsPrivacy policy
Company
How It WorksPricingBlogFree Online VetOnline VetPet Symptom CheckerFind a Local Vet ClinicFree Teachers lesson plansGasTexts: Free Gas Prices TextedCheersVC
NEW ZEALAND
Speak to A Vet NZ
Our Social Links