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Samylin Liver Supplement for Dogs

Samylin Liver Supplement for Dogs
Large Breed » 5.3g Sachet (Pack of 30)
Large Breed » Tablets (Pack of 30)

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  • Large Breed » 5.3g Sachet (Pack of 30) £79.99
  • Large Breed » Tablets (Pack of 30) £80.99
  • Medium Breed » 4g Sachet (Pack of 30) £67.49
  • Medium Breed » Tablets (Pack of 30) £67.49
  • Small Breed » 1g Sachet (Pack of 30) £37.00
  • Small Breed » Tablets (Pack of 30) £37.00

Selection of 6 products from

£37.00 to £80.99


Samylin is a food supplement used where there are concerns regarding liver function. Samylin contains SAMe which is a precursor of glutathione. This is known to be required by the liver and elevated levels are able to increase the effective functioning of the liver. Other ingredients include the antioxidant and thiol donor Silybin (found in Milk Thistle), Vitamin E and Vitamin C. Samylin is used at a rate of one sachet per 5kg of bodyweight per day, mixed with food. The tablets should be given whole, it is not recommended that they are crushed before being fed.

Product Information

Small Breed - For cats and dogs up to 10kg

Medium Breed - For dogs between 11kg and 30kg

Large Breed - For dogs between 30kg and 40kg

Administration Rate for Tablets

Weight Administration Rate
Cats and Dogs under 5kg 1 x small breed Tablet daily
Dogs 5-10kg 2 x small breed Tablets daily
Dogs 11-20kg 1 x medium breed Tablet daily
Dogs 20-30kg 2 x medium breed Tablets daily
Dogs 30-40kg 2 x large breed Tablets daily

Administration Rate for Sachets

Cats and Dogs under 5kg 1 sachet daily small breed
Dogs 5-10kg 2 sachets daily small breed
Dogs 11-20kg: 1 medium breed sachet daily
Dogs 20-30kg: 2 medium breed sachets daily
Dogs 30-40kg: 2 large breed sachets daily

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 (45)

Q & A

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

8 August 2017 at 11:00pm

Crushing tablets

Helen Gilbert

Having difficulty getting my dog to swallow the medium tablet now. Can I crush it and add to food? Thanks

  • Veterinary Advisor

Yes it is fine to crush the tablet and give it in food. Samylin is also available in powder form which might be easier the next time you buy it.

16 May 2016 at 12:01pm

Wrong product

Patricia Hickey

  • VioVet customer since 2016
  • From: Greater Manchester, United Kingdom

Can I get a refund then

  • Non-Executive Director

If you accidentally order the wrong product, you can return it to us (at your own expense). It it arrives back to us and you have taken appropriate care with the product, we will be happy to refund your full purchase price.

16 May 2016 at 11:04am

Use in cats?

Patricia Hickey

  • VioVet customer since 2016
  • From: Greater Manchester, United Kingdom

I've just ordered Samylin Liver Supplement for dogs is it okay to give to cats because my have it to me last time

  • Non-Executive Director

Samylin is marketed just for dogs by the manufacturer and so we have to follow this lead and advise that it is intended just for dogs. However all the active ingredients are sometimes used in cats and the main ingredient is indeed regarded as helpful and very safe for cats with liver trouble. If you choose to use it in a cat this is up to you, but I think it would be safe.

27 April 2016 at 7:27am

Feed with other supplements

Chen Chi (josefa) Hsu

  • VioVet customer since 2015
  • From: , Hong Kong

hi, doc, i bot samylin for years and always mixed with food and other supplements like fish oil, probiotic and vitamin c. my dog has been ok and didnt have any stomach upset. i am wondering if this way of feeding is ok and any restriction when feeding samylin. thank you!!

  • Non-Executive Director

Samylin is usually given with food and it can certainly be given with the other supplements you mention. I do not see any problem with you doing this. There are some supplements which can potentially cause trouble in themselves, particularly those containing vitamins A or D. Overdosing those can cause trouble. As long as you avoid that and you generally only give supplements in the quantities recommended by the manufacturer, it should be safe. You might not need to be giving so many supplements; most dogs do not need them if the general diet is good quality. However this is up to you. Obviously check with your own vet if you are unsure about anything, or about your dogs medical conditions generally.

21 March 2016 at 11:30am

Pill or with Guggum whether powder?

Min Jung Kwon

  • VioVet customer since 2016
  • From: 50, Hugok-ro, paiu-si, Gyeonggi-, Korea, Democratic People's Republic of

Book he slways reply Thank you. ^ - ^
Cognitive pills to slitting my son were 8.5kg. saemillil I just had to order
the breed. Medium or pink powder l wan na
get it a pill !!!
And chopped them up, and equal benefits
Would like to know if we may.
♧ I am Korean. not good at English so
please understand !!! Thank you.

  • Non-Executive Director

You can give tablet or powder. You can split the tablets.

20 March 2016 at 4:22am


Min Jung Kwon

  • VioVet customer since 2016
  • From: 50, Hugok-ro, paiu-si, Gyeonggi-, Korea, Democratic People's Republic of

Because dog is higher levels of liver saemilli
to be eating falls was bad liver numbers, Could you recommend if you have anything
better. We ask, please! "please"

  • Non-Executive Director

Samylin is regarded as one of the best liver supplements and it is likely to be as good as any supplement of this type. Some liver conditions can respond to antibiotics or steroids or other prescription medication, so your own vet can advise you on these. Ideally you need to make a precise diagnosis and then treat that condition as well as you can. Raised liver enzyme levels usually indicates liver damage, but tells you nothing about why that damage has occurred. This should be investigated. Sometimes it can be caused by a bad reaction to other medication which has been given, so if your dog is on any other medication which could be causing the damage, you should consider stopping that immediately.

8 January 2016 at 10:19am

Samylin tablets

MRS S POUND (dupon2141)

  • VioVet customer since 2013
  • From: SURREY, United Kingdom

Are these given on an empty tummy as there are no details in the box.. I assume the powder is sprinkled on the food but are the tablets also to be taken with food
Thank you

  • Non-Executive Director

This product is normally taken with food. The tablets can be given whole or crushed, but some food is normally given at the same time or afterwards. The powder is much better given with some food.

31 October 2015 at 12:35pm


Maryann Rice

  • VioVet customer since 2015
  • From: North Lanarkshire, United Kingdom

If the dog stops taking this can it damage it thanks

  • Marketing Assistant

Hi Maryann,

If the vet has recommended you stop giving this to your dog then that's fine. Otherwise the dog would just not be getting any liver support.

Hope this helps,


12 October 2015 at 1:34am


Ym Heo

What is the difference between small and medium breed?Is it only capacity of difference or there are other differences or ingredients?

  • Non-Executive Director

The difference is purely in the amount of ingredients per sachet, they are the same otherwise.

6 October 2015 at 7:36pm

Right dosage for a heavy cat.

Allan Feliciano

My cat weighs seven kilos and his ALT has been so high. We have been giving him two packs of samylin for months. Should we be giving him ONE or TWO?

  • Non-Executive Director

It is safe to give 2 sachets for such a large cat, but I would be tempted to give just one sachet daily from now on. I would also suggest that if your cat is overweight (it certainly sounds like it must be) then very gradual weight loss would be very helpful too. Fat builds up in the liver and is not a good thing.