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Protexin Denamarin Liver Supplement for Dogs & Cats

Protexin Denamarin Liver Supplement for Dogs & Cats
90mg Tablets (Cat/Small Dog) » Pack of 30

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  • 90mg Tablets (Cat/Small Dog) » Pack of 30 £31.49
  • 225mg Tablets (Med Dog) » Pack of 30 £44.29
  • 425mg Tablets (Large Dog) » Pack of 30 £77.99

Selection of 3 products from

£31.49 to £77.99


Protexin Denamarin Tablets provide effective liver support for dogs and cats. Protexin Denamarin contains a stabilised form of the naturally occurring and biologically active S,S-SAMe isomer and Silybin which has been complexed with phosphatidylcholine. This is known to have a greater bio-availability than silymarin alone, so more of the product is taken in and used by the body.

Feeding Guidelines


Tablets should be given on an empty stomach at least one hour before a meal for optimum absorption (an overnight fast is preferred). The number of tablets administered may gradually be reduced, or increased, at any time at the recommendation of your veterinary surgeon.

Weight Cats and Small Dogs Medium Dogs Large Dogs
<5kg 1 tablet
5-15kg 1 tablet
15-30kg 1 tablet
30-55kg 2 tablets
>55kg 3 tablets

Need help or advice? Contact us:

  • Landline: 01582 842096
  • Mon - Fri: 8:30am - 5:00pm
  • Sat: 9:00am - 1:00pm (Collections only)
  • Email: [email protected]

All prices include VAT where applicable.

Delivery Information

How quickly do you deliver?

Under almost all products on our website is an Estimated dispatch time, check this for a delivery prediction specific to the item you are looking to purchase. These badges are updated live based on the stock levels we have and also those of our suppliers - so are usually very accurate, but cannot be guaranteed. In more general terms, we aim to dispatch all orders within 1 working day of receiving payment (and a prescription if required). If we cannot do so within 3 working days we will contact you by email.

What do you charge for delivery?

For UK delivery, we charge the following:

Order Total Weight Delivery
£0-£28.99 Under 2kg £2.99
2kg+ £4.99
£29-£38.99 Under 2kg Free
2kg+ £4.99
£39+ Under 2kg Free
2kg+ Free

Prices quoted are for delivery to all parts of mainland UK except certain Scottish postcodes (where the price is higher for items sent by courier. Delivery of food abroad (including Channel Islands, N. Ireland and other islands around the UK) is charged at a higher price and free delivery is not available. Temperature controlled products, such as Insulin, are also not always subject to the standard and/or free delivery options.

For full information on our delivery charges, including prices on heavy deliveries to Scotland and abroad, see our delivery information page.

We can deliver most items to all around the world, but prices do vary. To find the exact cost of shipping your item, and to see all options available, follow these steps:

  1. Put the items you wish to order in your basket
  2. Proceed to checkout and enter your delivery address, including country
  3. Delivery information including price will automatically update to what is available to you

Delivery of aerosols

Due to restrictions aerosols can't be sent by Royal Mail. We appreciate your understanding.

Delivery of temperature controlled items

Some products, such as insulin and frozen food, need to be delivered in insulated packaging to prevent them from getting too warm (or too cold) during transit from us to you. Purchasing any of these items in your order will result in a £1.99 charge being added to the total to cover the high cost of the insulated packaging materials. You only pay the £1.99 once per order, regardless of how many temperature controlled items you purchase in that order.

How do I cancel or return an order?

Please call us as soon as possible if you need to amend or cancel an order on 01582 842096. If your order has been processed for dispatch we will be unable to cancel or amend the order. You will however be able to return your product for a full refund*.

To return an item, you must contact us by phone or email to arrange this BEFORE posting any product back to us. We will explain the process at this stage for you.

*For full details on returns, see our terms and conditions page.

Reviews (42)

Q & A

Below are some recent questions we've received regarding Protexin Denamarin Liver Supplement for Dogs & Cats, including answers from our team.

14 March 2018 at 1:16am

Giving Denamarin tablet


I find it very difficult to get my dog to take the tablet. Sometimes it takes two or three attempts, by which time the tablet is losing its coating. Will this make any difference to the tablet's effectiveness? We have sometimes given it with a small amount of food, is this a problem?

  • Veterinary Advisor

The enteric coating of Denamarin protects the SAMe from degradation in the stomach so that the maximum amount can be absorbed in the small intestine. If the coating is lost then it is likely to be less effective. It is better as you say to give with a very small amount of food then give a main meal one hour later.

16 February 2017 at 6:27pm

Protexin Denamarin

Amanda Lloyd

Is Protein Denamarin a better option then Hepatosyl plus for liver problems?

  • Veterinary Advisor

Both products contain very similar ingredients. However it is thought that Denamarin is more bio-available so more of the product is absorbed and used by the body. Although, to my knowledge there have not been any studies which compare the two so it is difficult to say with certainty that Denamarin is better.

19 September 2015 at 10:47am

Denamarin with food

Dan Jackson

  • VioVet customer since 2015
  • From: Sir Benfro, United Kingdom

Hello, as per the guidelines we give our Jack Russell the Denmarin 1 hour before eating, always in the morning. shortly we will be leaving her at a kennel for 8 days, will administering it with food be an issue for this short period. Some neighbours of ours always give it with food? Many thanks. Dan

  • Non-Executive Director

Giving it with food is often what people have to do, though it is less good than doing it as recommended. It will reduce the effectiveness of that particular dose, because the active ingredient will not be absorbed fully from the gut and will "come out the other end" without ever getting to the liver. However some will be absorbed and for a short period of a few days it is unlikely to make a noticeable difference. Ideally ask the kennels to give the medication with a minimal amount of food, then give a meal later. If they cannot then it should not be a disaster.

23 April 2014 at 5:58pm



Is a prescription required for Denamarin?

  • PHP Developer

No, Protexin Denamarin can be bought without the need for a prescription.