Cold-chain pet medicines explained
Which pet medicines need the fridge, how to store them at home, what to do if one is left out or frozen, and how we send cold-chain orders.
November 6, 2026
Free standard delivery over £50
Unbranded, secure packaging guaranteed
5% off your first order
When you sign up
Registered Veterinary Retailer
Genuine pet medicine
Cyclofin 300mg/ml + 20mg/ml Solution for Injection for Cattle 100ml
From £55.51
- Prescription Required
Cyclofin 300mg/ml + 20mg/ml Solution for Injection for Cattle 100ml
From £55.51
Legal category: POM-V
Cyclofin is a prescription-only injection for cattle that contains oxytetracycline (an antibiotic) and flunixin (an anti-inflammatory).
- For cattle only
- Administer as a single deep intramuscular injection.
- Supplied in a 100 ml glass vial.
Form: Solution for injection, administered by deep intramuscular route.
Order Monday to Friday before 14:00pm to guarantee next
day delivery.
Please select size and quantity as shown in your prescription.
Ordering Prescription-Only Products
This item requires a current prescription from your vet before we can dispatch it. The good news? Sorting it out is simple and only takes a moment.
- Select or register your pet
- Attach a clear image or PDF of the prescription
- Complete your order at checkout
As soon as your prescription reaches us, our team will verify the details and get your pet’s treatment posted out to you.
Order Monday to Friday before 14:00pm to guarantee next
day delivery.
Product Features
Legal category: POM-V
Cyclofin is a prescription-only injection for cattle that contains oxytetracycline (an antibiotic) and flunixin (an anti-inflammatory).
- For cattle only
- Administer as a single deep intramuscular injection.
- Supplied in a 100 ml glass vial.
Form: Solution for injection, administered by deep intramuscular route.
Product Details
Cyclofin is licensed for the treatment of bovine respiratory disease caused by Mannheimia (Pasteurella) haemolytica, where anti-inflammatory and antipyretic effects are required.
Each ml contains 300 mg oxytetracycline and 20 mg flunixin.
Legal category: POM-V
Instructions
Use Cyclofin strictly according to your vet’s instructions and as the product leaflet directs. Full product information: Cyclofin on the VMD Product Information Database.
Ask your vet if you are unsure how to give it.
Legal category: POM-V
Prescription-only medicine for animals. We need a valid prescription from your vet before we can dispense it.
Sizes
Cyclofin 300 mg/ml + 20 mg/ml, 100ml vial.
Key Benefits
- Active ingredients: oxytetracycline 300 mg/ml and flunixin 20 mg/ml
- Single deep intramuscular injection
- 100ml glass vial
- For cattle only
- Prescription-only medicine (POM-V)
Ingredients
Each ml contains 300 mg oxytetracycline (as oxytetracycline dihydrate) and 20 mg flunixin (as flunixin meglumine).
How it works to order pet prescription medications online
Prescription required for this item. We need a valid written prescription from your vet before we can dispatch.
Legal category: POM-V
Choose your
treatment
Select the treatment you would like to order
Upload a prescription copy at
the checkout
Provide all the information about your pet
Express
Delivery
Your order will be sent in discreet packaging.
Frequently asked questions
Latest Blogs
What to do with unused or expired pet medicine
Out-of-date wormers, half-used antibiotics, old spot-ons: how to check what has expired and where to take each type of pet medicine in the UK.
November 4, 2026
How Long Does Flea Treatment Take to Work?
Still seeing fleas an hour after treating? That’s normal. Vet-reviewed guide to how long flea treatments take to work and when it’s safe to reapply.
August 28, 2026