Samylin Liver Supplement for Dogs

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

Images are for illustration purposes only. Packaging may change from time to time and images on our website may or may not be updated.

  • Large Breed » 5.3g Sachet (Pack of 30) £76.49
  • Large Breed » Tablets (Pack of 30) £76.49
  • Medium Breed » 4g Sachet (Pack of 30) £69.99
  • Medium Breed » Tablets (Pack of 30) £69.99
  • Small Breed » 1g Sachet (Pack of 30) £44.89
  • Small Breed » Tablets (Pack of 30) £43.35

Selection of 6 products from

£43.35 to £76.49


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:

All prices include VAT where applicable.

Reviews (62)

Summary of Reviews for Samylin Liver Supplement for Dogs

Overall 5
Ease Of Use
Value For Money
Absence Of Side Effects
62 out of 62 (100%) customers would recommend this product.
5 stars (43 reviews)
4 stars (17 reviews)
3 stars (1 reviews)
2 stars (1 reviews)
1 stars (0 reviews)

Only verified purchasers of this product can leave a review.

45 Buy scales and use this for your small dog
Verified Purchase

By on 21 June 2023

Same as in the more expensive packs for small dogs but with a letter scale, the correct dose can be weighed out and you save a small fortune.

Customer recommends this product

55 Samilyn
Verified Purchase

By on 8 April 2023

Excellent really help my dog with his liver condition

Customer recommends this product

45 Great value
Verified Purchase

By on 23 February 2023

Good for my dog

Customer recommends this product

55 Continuous order. Excellent service.
Verified Purchase

By on 20 February 2023


Customer recommends this product

55 Sampling
Verified Purchase

By on 7 February 2023

Excellent product

Customer recommends this product

Page 1 of 13

Next Page

Q & A

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

30 April 2023 at 7:53pm

Large Breed Dosage


What is the dosage please for a large breed (Dalmatian) 27kg dog? How many tablets daily?
Thank you.

  • VioVet Staff

| 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 |

30 March 2023 at 6:03pm

Reimbursed by pet insurance?

Margaret Kutty

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

Will this be covered by my pet insurance and do I need to get it from my vet only?

  • VioVet Staff

This can be purchased through our website without prescription. Regarding whether your pet insurance will cover the cost, you are best contacting your insurance company direct to check what your particular cover includes.

12 January 2023 at 5:57pm

Samylin or hepatiNorm?


Which is best for my cat?

  • VioVet Staff

The two supplements are slightly different. I recommend reading our blog on the topic, 'Supporting your pet's liver' for more information. It is best to follow your vet's guidance on which supplement if your pet is being treated by them.

11 November 2022 at 11:45am

How to give the tablets to my dog?


Do the tablets need to be given on an empty stomach?
Thank you

  • VioVet Staff

The feeding guide advises to mix these tablets with food.

3 June 2022 at 12:13pm

Dog with MUO and on steroids


Dear All,
My dog has Meningoencephalitis of unknown origin (MUO) and is undergoing cytarabine treatments and taking daily steroid tablets. Is it ok to give this supplement to her if the treatments aim to suppress the immune system?
Thank you!

  • VioVet Staff

Samylin is intended to support the liver. MUO does not impact the liver specifically, I assume you are potentially using it as therapy for MUO can put strain on the liver? it is worth running the use of this supplement past your vet before using it if this is the case. They can let you know where it is safe alongside their treatment protocol, and also if it is necessary to use anyway.

9 February 2022 at 4:30pm

Side effects on very senior dog taking Samylin?

April Young

Just been given Samylin tablets for my 16yr old terrier to boost his liver function after ultrasound at vets. No leaflet with the box of tablets. Want to know what to look out for in my dog in response to these supplements to be taken for 6 wks. Thank you

  • VioVet Staff

Samylin is a supplement so there are no listed side effects for the product, like you would find with a licensed medication. However similar to any food your dog could be allergic/intolerant to one of the ingredients. This can show as skin or gastrointestinal issues (vomiting/diarrhoea). If any of these occur then you should see your vet to discuss further.

28 October 2021 at 5:33pm

Prescription or over counter?


I have received Samylin Medium from the vets today. I am unsure if it was on prescription - does it have to be?

  • VioVet Staff

Samylin is a supplement and so can be bought over the counter without prescription.

20 October 2021 at 4:33am

Diabetic vs Samilyn

Wena Cintiawati

is it okey to give samilyn to my senior diabetic mini dachshund?

  • VioVet Staff

There are no specific ingredients in this supplement that are a cause for concern with diabetics. However any change in diet can affect your dog's insulin requirements so you should run the use of this supplement past your vet to be safe.

12 September 2021 at 10:50pm

Dosage for dogs

Monica Gunawan

Hi I have 9 kilo dog, it says to give 2 small instead of 1 medium. For the sake of purchasing (giving two means double the price) is it safe to give one medium tablet instead maybe with longer interval days ? Thank you

  • VioVet Staff

I recommend contacting the manufacturer direct (VetPlus) regarding your query as unfortunately they won't discuss customer queries with us. They should be able to advise on this.

1 September 2021 at 3:33pm

Any good for gallbladder problems?

Kerry Dean

  • VioVet customer since 2016
  • From: West Yorkshire, United Kingdom

Hi, my beagle has been diagnosed with sludge in his gallbladder and is taking various meds but the vets has said this may also help. With it mainly making reference to helping with liver complaints, do you know if it can help the gallbladder? Thanks

  • VioVet Staff

The gallbladder is contained just within the liver lobes, with the bile duct closely involved with the liver itself. For the gall to be produced normally the liver must be working effectively so it is highly likely that this close relationship is why your vet has recommended the product. If the gall bladder is affected then it could have a knock on effect on the liver. I advise asking your vet this question too so they can provide a more specific answer for you.

Delivery Information