Vet prescription required in checkout

Onsior for Dogs 5mg

You save 63%
Vet prescription required in checkout
You save 63%

Onsior for Dogs 5mg

Onsior for Dogs is for the treatment of acute pain and inflammation associated with musculo-skeletal disorders.
Standard Retail Price £0.80
Fast delivery See Options
In stock
  • Details
  • Instructions
  • Delivery Info
  • Service Reviews (65885)

Onsior for Dogs 5mg

Onsior for Dogs 5mg is for the treatment of acute pain and inflammation associated with musculo-skeletal disorders in dogs.

It is supplied in individual 5mg tablets or packs of 28.

How many tablets does my dog need? The recommended dose of Onsior is 1mg per kg bodyweight daily (with a range of 1-2mg per kg). For example:

2.5-5kg - 1x 5mg tablet

5-10kg - 1x 10mg tablet

10-20kg - 1x20mg tablet

20kg-40kg - 1x 40mg

40kg+ - 2 x 40mg 

 It is advised to issue Onsior at the same time every day. Do not administer with food. Studies have shown that giving Robenacoxib without food or at least 30 minutes before or after food had better efficacy. Do not divide or break tablets. Wash hands after handling medication.


If you see the "prescription required" sign next to an item you’d like to order, it means the item can only be issued with a prescription. While you can add these items to your shopping cart and pay for them along with other non-prescription products, we can’t dispatch them until we’ve received a prescription.

Delivery Info

Light (usually non-food) orders under £29 are charged £2.99 postage. Heavy (typically food) orders under £29 are charged £4.49 postage.

For Light items (under 2kg) our standard method is Royal Mail Second Class (there are a few exceptions, so if in doubt check our Delivery page).

To get it faster you can upgrade Light items to Royal Mail 1st Class or a Guaranteed Next Day Courier service, Saturday Courier or even before 12 noon services. There's a small fee, but if you're in a hurry they are worth considering. To qualify for next working day delivery, orders must be placed before 12 Noon Monday to Thursday. There is no standard Saturday courier delivery.

Heavy items weighing 2kg and more are sent via courier. If ordered before noon Monday to Thursday, Heavy items will be delivered next working day. Heavy items ordered after 12 Noon Friday, or anytime Saturday and Sunday will dispatched on Monday for a Tuesday delivery.

Please note that if you are purchasing a mix of Light and Heavy items at the same time, these will be sent separately. The Heavy items being sent by Courier, the Light items by Royal Mail Second Class.

Refrigerated items are only despatched by courier Monday to Thursday to ensure the item remains cool.

All exceptions to these guidelines are noted in the product description.

For more information, view our Delivery page.

Service Reviews (65885)
Independent Customer Feedback

Onsior for Dogs 5mg

4.9/ 5
(65885 customer reviews)
  1. 4
    "Only thing to do would try dispatch same or next day."
    Review by / (Posted on
  2. 5
    Review by Wendy Delaney / (Posted on
  3. 5
    "prompt delivery and great price"
    Review by MARK WILLIAMS / (Posted on
  4. 4
    "Great service. All items received on time and complete"
    Review by / (Posted on
  5. 5
    "Very easy to do an online order and speedy delivery service."
    Review by / (Posted on
View all 65885 customer reviews

Vet prescription required in checkout

  1. Get a prescription from your vet
  2. Place your order with us
  3. Add a prescription and tell us about your pet.
  4. Our vets will double check your order & your order is dispatched right away
Learn more