Nutramax Denamarin Liver Health Supplement for Medium Dogs - With S-Adenosylmethionine (SAMe) and Silybin, 30 Tablets | On Sale | EntirelyPets Rx
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Nutramax Denamarin Liver Health Supplement for Medium Dogs - With S-Adenosylmethionine (SAMe) and Silybin, 30 Tablets

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NOTE: Limited supply item - only three (3) per customer per order.

Switch between tablets in either a blister or bottle ( Nutramax Nutramax Denamarin Liver Health Supplement for Medium Dogs - With S-Adenosylmethionine (SAMe) and Silybin, 30 Tablets) both provide the same guaranteed levels of SAM-e and Silybin.


Denamarin coated tablets containing SAMe (s-adenosylmethionine) and silybin can be used in dogs of all sizes to help support healthy liver functions. In addition, research has shown the administration of Denamarin coated tablets to be safe for dogs. Denamarin Liver Health Supplements are brought to you by Nutramax Laboratories Veterinary Sciences, the #1 veterinarian recommended supplement company. *Source: Survey conducted among small animal veterinarians who recommended animal supplements.

Key Benefits:

  • Liver Support for Dogs: Denamarin is the #1 veterinarian recommended liver support supplement for dogs. This supplement contains s-adenosylmethionine (SAMe) to help increase levels of the antioxidant glutathione - one of the liver's main detoxifying agents
  • High-Quality Ingredients: The Silybin found in Denamarin has shown better absorption by dogs than the standardized milk thistle extract found in many other products
  • Support Your Dog's Liver Health: The liver is one of the most vital organs in your pet and is responsible for removing toxins, storing energy, aiding digestion, and supporting the immune system
  • From the #1 Veterinarian Recommended Supplement Company*: Nutramax Laboratories Veterinary Sciences has been a leader in pet health for over 30 years, and provides supplements to support joint health, digestive health, and overall wellness
  • Backed by Science: Nutramax Laboratories Veterinary Sciences supplements are veterinarian formulated with high-quality ingredients to ensure your pet is receiving a safe supplement


Active Ingredients:

S-Adenosylmethionine 225 mg, Silybin-phosphatidylcholine complex (SPC)* 82 mg, *Providing 24 mg of Silybin A+B.


For dogs 13 - 34 lbs, 1 tablet per day.

Tablets should be given on an empty stomach for optimal absorption. They may be given at least two hours after a meal or one hour before a meal.


Store in a cool dry place. Keep tablets in original blister pack until used. Tablets are sensitive to moisture and extreme heat and should not be split or crumbled.


Your veterinarian will likely recommend follow-up examinations, blood work, and/or other laboratory work to check on how well your pet is doing with Denamarin and how it may be helping to support your pet's liver function. At home, watch for a response in attitude, appetite, and activity level.
The active ingredients in Denamarin have been shown to be well-tolerated by both dogs and cats with a wide margin of safety.
Yes, your veterinarian may recommend combining Denamarin with other products, like Marin Plus in dogs, and/or dietary modifications. Combining Marin Plus with Denamarin in dogs provides added levels of silybin along with vitamin E, zinc, curcumin, and MCT oil for those patients that may benefit from additional liver support. There are no known interactions of Denamarin® with drugs or other supplements.
While other S-Adenosylmethionine and silybin products are available, there can be a significant variance in product quality and tablet strengths. Denamarin’s active ingredients individually have been shown to be safe and effective for both dogs and cats in published research studies. Denamarin® contains a specific silybin shown to provide better bioavailability in dogs compared to the standardized milk thistle extract available in many other products.


Review Summary
10 Reviews
80% (8)
10% (1)
10% (1)
0% (0)
0% (0)
100% Recommend this product (10 of 10 responses)
By Carolyn
Great product
March 8, 2024
My little scottie has had liver disease for a long time. She's been on Denamarin for a long time too. She takes 1 pill everyday in a piece of chicken. I think it's kept her going. She's 13 now, and she's still taking it. Thanks, Denamarin, for keeping my baby here with me.
By Carol H.
Dimondale, Michigan
Medication for my dog
April 27, 2022
You are always right on in sending my dogs medication. Thank you so much!

Merchant Response:
By Anonymous
Item is as described
April 27, 2021
I typically order this item from a different site, but was told that the item was out of stock with the manufacturer. I decided to try Entirely Pets (as I have used them before) and they had the item in stock. Service is great and I received the item even sooner than I had anticipated. Also, it is very helpful that I receive a status email, and shipping info for tracking. I will definitely use Entirely Pets more often.
By EdD
Fairfax Station
Great Service
April 25, 2021
Ordered because it was more cost effective than from the Vet
By Linda
Morongo Valley, CA
Vet Recommended!
April 5, 2021
When I got my senior dog her liver lab work was not good-vet suggested Denamarin and now her lab values are normal.
By Dee
April 4, 2021
My girl's Denamarin is on auto order, which makes it very convenient and I don't have to make an extra trip to the vet so there's no overlap, and even with shipping, the price is better than the vet's.
By Elizabeth
Chatham, MA
Great results
June 6, 2020
My vet prescribed this based on unusual liver results. The change is amazing in my dog; his coat is fuller, more energy, lost some weight, better liver results. He will be in this forever but well worth it.
By Jennifer
Lyman, SC
Denamarin Saved my dog
March 6, 2020
After suffering an unknown liver infection we placed our dog on Denamarin and he bounced back quicker and happier than I would have ever expected.
By Joyce
Great Product
April 11, 2019
It was nice to find this product on your site for less than other sites. Because this is an ongoing medication for the rest of my dog's life, it becomes costly.

Thank you!
By Tina
Northeast PA
Better safe than sorry
May 31, 2018
I honestly don't know that my dog needs this medication, but at 16 years old I'd rather be safe with her than sorry.

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