Product added:
Product Title
Product Info
Qty: 1
Call us on
01761 603141
Caninsulin Cartridges (40iu/ml)
Simple steps for pet prescriptions
  • 1Get a prescription from your vet
  • 2Place your order with Pet Drugs Online
  • 3Attach a prescription and tell us about your pet, read more
  • 4Our vets will double check your order
  • 5Your order is dispatched right away
Next day delivery*
Place your order by 12 noon and we'll get it to you the next working day.
d h m s left today
*Mon-Fri only, products must be in stock
Read about delivery and charges

Caninsulin Cartridges (40iu/ml)

2.7ml cartridges x 10

This item requires a vet's prescription

SAVE 36%
99% Feefo Logo
40234 Reviews
  • Save 36%
  • Vet price £77.54
  • Our price £49.73
Sub total:
Add to favourites

Out of stock.

Prescription Info.
Service Reviews

Caninsulin Cartridges (40iu/ml)

Caninsulin Cartridges (40iu/ml) are for the treatment of insulin deficiency (diabetes) in dogs and cats. It is supplied in packs of 10 x 2.7ml cartridges for use with the Caninsulin VetPen.

Caninsulin Cartridges are a prescription item and will be sent once a valid prescription is received. An additional £5.99 will be added to the order, as it is required to be delivered next day and be signed for. This item will only be dispatched Monday-Thursday.

Save over 30% on Caninsulin Cartridges when you buy from Pet Drugs Online.

Caninsulin needs to be kept below 25°C to ensure its efficacy. During periods of hot weather dispatches may be temporarily delayed.
Keep out of reach of children.
Shelf life of the veterinary medicinal product as packaged for sale: 2 years
Shelf life after first opening of the immediate packaging: 28 days

How to Administer

Caninsulin should be administered once or twice daily. Always make sure to alternate the injection site on a daily basis to avoid irritation. Before each use, invert the vial a few times until a homogenous suspension is obtained. A 40 IU/ml insulin syringe should be used.

The cartridge should be used with VetPen. Within the package will be a leaflet with detailed instruction for use to be followed.

If the needle is removed from the skin too early, sometimes small drops of insulin may leak from the needle, this can mean an incomplete dosing. If this occurs, do not attempt to re-dose. Wait and give your pet its usual dose at the next injection.

To check the most up to date information about this product, please read its Summary of Product Characteristics (SPC) on the Veterinary Medical Directorate’s (VMD) Product Information Database:

View summary of product characteristics (SPC)

For orders over £29 postage is free. For orders under £29 we charge £2.99 for 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.

All exceptions to these guidelines are noted in the product description.
For more information, view our Delivery page.

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.

Product reviews for prescription products are not allowed by the RCVS. But here is what our customers say about our service:

Service reviews have been compiled from 40229 customer reviews


Always get ma worming from here get it within 2 days and great prices so be back for more


Fast, efficient, excellent price. Would heartily recommend.


It was very easy to order, had no problems and I'm very wary of ordering online, so definitely use them again. Ordered in afternoon and received by post next morning


Price is important and yes they can save you money but far more important is a quick, reliable and proficient service which is vital when your pet requires urgent medication. Would recommend.


I am so pleased I found out about Pet Drugs Online, not just for the great reductions in the cost of drugs, but for the ease in ordering from the company. I have told people about this and was surprised at how some people had no idea they could get cheaper drugs. For older pets this is really helpful as many of them become ill in old age. I am charged for a private vet prescription and they put down the number of repeats I can have. I recommend them wholeheartedly.


Received frontline quickly, but did not and still haven't received drontal tablets.
I will not be ordering from you again as I had to have my dog put to sleep after 10 years.


Quick delivery is excellent. The only improvment I can suggest is it would be good if boxes of cat food sachets could be sold individually instead of in four-packs. I need five boxes a month and would like to try different flavours but the four-pack boxes don’t work for this


Great service, easy website to use, cheaper products than my vet, and prompt delivery


Great service, great value.

View all 40229 reviews