Logic Firm - 24ml


Logic Firm is a balanced and proven intestinal support for cats and dogs.

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Standard UK Delivery

1st Class Royal Mail delivery service. Estimated delivery by:

*Orders under £25: £2.50

Guaranteed Delivery

Guaranteed (DPD) delivery service. Estimated delivery by:

*Orders under £25: £4.95
*Orders over £200: Free

For more infomation view our delivery details.

Important Note: The estimated delivery dates shown above are subject to delays due to the latest lockdown measures. If you require guaranteed delivery please select the DPD option at checkout.

Logic Firm is a balanced and proven intestinal support for cats and dogs. Diarrhoea is an extremely common problem in dogs and cats and has a variety of potential causes for example:

Dietary sensitivity



Bacterial infection

Viral infection

Pancreatic disease

Inflammatory bowel disease.

A number of supplements are available, such as Logic Firm, that help to support intestinal function. These contain intestinal cells, and absorbing toxins. There are also newer products available which prebiotics (such as Logic Firm). These help to maintain intestinal flora by promoting the growth of good bacteria at the expense of potentially harmful pathogenic bacteria.

10ml syringe for cats and dogs weighing between 2-7kg

24ml syringe for dogs weighing between 7-30kg

60ml syringe for dogs weighing between 30-60kg

How much do you charge for Postage and Packaging?

Postage and Packaging is FREE on all orders over £25. Orders under this amount will be charged £2.50 for Postage and Packaging. 

When should I expect my order?

We aim to process all online orders received by 8.30am on the same working day. For orders placed after 8.30am we aim to process the next working day. Orders placed after 8.30am on a Friday will be processed on the next working day, i.e. Monday.

Small Items: such as individual horse wormers, worming tablets and flea treatments are sent by Royal Mail First Class. 

Royal Mail First Class aims to deliver your goods within 1-2 working days, however this is not guaranteed. Most small items are packaged to allow your postman to deliver your order through your letterbox. 

Large Items: such as multi-buy horse wormers or orders over a certain value are sent by Courier. 

Help! My order hasn’t arrived!

If you experience any delays in receiving your order please email us on sales@wormers.co.uk or telephone 01829 734981. Our office hours are 8.30am - 5.00pm Monday to Friday, 9.00am - 1.00pm Saturday