Nutramax Denamarin with S-Adenosylmethionine & Silybin Tablets Liver Supplement for Medium Dogs, 30 count

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About This Item

Details

  • Support your dog’s liver health with veterinarian-recommended Denamarin.
  • Denamarin for dogs contains S-adenosylmethionine (SAMe) to help increase levels of the antioxidant glutathione—one of the liver’s main detoxifying agents.
  • The silybin (a bioactive component of milk thistle extract) found in Denamarin is more bioavailable than standardized milk thistle extract.
  • The liver, one of your pet’s most vital organs, is responsible for removing toxins, storing energy, aiding digestion, and supporting the immune system.
  • Denamarin undergoes thorough quality inspections to ensure your dog receives a safe, high-quality product.

Ingredient Information

Instructions

FAQ

Learn More About Nutramax From Our Team of Experts

Combined Power of SAMe and Silybin

Denamarin combines the power of S-adenosylmethionine (SAMe) and silybin to help support healthy liver function in pets.

#1 Veterinarian Recommended

Denamarin is the #1 veterinarian recommended liver support brand.

*Survey conducted among small animal veterinarians who recommended liver support supplements.

The Denamarin Difference

The Silybin (a bioactive component of milk thistle extract) found in Denamarin is more bioavailable than standardized milk thistle.

Unmatched Quality

Each batch of Cosequin undergoes rigorous quality inspections, ensuring that your pet receives a high-quality joint health supplement.

About Nutramax

Family owned and operated since 1992, Nutramax Laboratories exceeds the industry standard for animal health supplements. We develop high-quality products for joint, liver, digestive health, and overall wellness.

Shop Nutramax

Questions & Answers

27 Customer Questions


So my dog can’t have chicken so he’s been taking these, but is it just the chicken flavor and that’s gonna be OK?

Answer by BobbyNov 23, 2025
Please cancel this medicine from my chewy order Denamarine

Are these chewable?


Is low dose aspirin safe for dogs

Answer by AllieFeb 02, 2026
It can cause stomach bleeding, ulcers, & liver damage. It should only be given under veterinarian supervision.

are these chewable?

Answer by AllieFeb 02, 2026
My veterinarian says that the pill is very bitter. That's why my miniature schnauzer will only take it with a little peanut butter.

4.7
Rated 4.7 out of 5 stars
2303 Ratings

Customers Mention

Chewy identifies key considerations with the help of artificial intelligence and our veterinarians.

Ease of Use

87% Positive

Effectiveness

86% Positive

Ingredients

84% Positive

Long-Term Benefits

86% Positive

892 Customer Reviews



Rated 5 out of 5 stars
By Shalma on Mar 18, 2026

Please Read!

This is a fantastic supplement that our vet prescribed for increased liver values. I just want to warn everyone to PLEASE share their dog's detailed diet with their

This is a fantastic supplement that our vet prescribed for increased liver values. I just want to warn everyone to PLEASE share their dog's detailed diet with their doctor and INSIST on analyzing whether that has something to do with the liver values. I consider myself an informed and caring guardian, and I messed up big time, so I want to warn others. We found out our homemade food was NOT balanced (99% of homemade dog food is not; the balance is very delicate!!!), and our beloved girl is being deprived of essential nutrients and vitamins (essentially nutritionally starved) as a result. We even kept a few serving of pre-formulated dry food in her weekly schedule. But that wasn't enough to balance things out. Her liver responded to the imbalanced homemade food by freaking out, despite us thinking we were doing everything right by spending loads buying the best ingredients to cook with for her. PLEASE don't make this mistake! Use pre-formulated food, ALWAYS! You'd be shocked what you can miss and the life-altering symptoms it causes. They can't tell us they feel bad. My dog looks healthy and loved, and yet she's been nutritionally starved due to my well-intentioned attempt to feed her the best food possible. PLEASE consider pre-formulated food, and if you insist on homemade, PLEASE speak with a board-certified vet nutritionist. It's really essential!


Rated 3 out of 5 stars
By Chuck on Feb 8, 2026

Slower Delivery - My fault but bonus items need clarification

I’m used to very quick delivery. This one was delayed by two days. I waited too long before ordering the medicine and food I needed, and then ordered a $20 plus

I’m used to very quick delivery. This one was delayed by two days. I waited too long before ordering the medicine and food I needed, and then ordered a $20 plus bag of the wrong food. I had opened it before I noticed so I donated it to the Capital Humane Society and bought a bag local. They were happy. My biggest disappointment was not qualifying for the $30 bonus on my $115 order. There needs to be an easier explanation preferably at the checkout phase that tells you what of your purchase has qualified so you can see what you need to add. At the time I was rushed because I was ordering late.


Rated 1 out of 5 stars
By Pei-Chi on Mar 21, 2026

Delivery is always bad

I specifically mentioned delivery ton3 rd floor in front of my door, but FedEx always leaves on the 1st floor though I called many times. Really annoyed about the

I specifically mentioned delivery ton3 rd floor in front of my door, but FedEx always leaves on the 1st floor though I called many times. Really annoyed about the situation never changes.


Rated 5 out of 5 stars
By Linda on Feb 24, 2026

A med many vets recommended

Great quick shipping from Chewy as always and nice people to deal with. The pill itself was a bit big and hard to get our dog to swallow it. Next time I would

Great quick shipping from Chewy as always and nice people to deal with. The pill itself was a bit big and hard to get our dog to swallow it. Next time I would have gone for the chewable version. This med seems to be prescribed often for liver concerns.


Rated 5 out of 5 stars
By Rhonda on Mar 2, 2026

Vet suggested this product

When my dogs liver values were off the vet had me put him on this. He is not keen on it and sometimes giving it an hour before a meal can be difficult but hopefully

When my dogs liver values were off the vet had me put him on this. He is not keen on it and sometimes giving it an hour before a meal can be difficult but hopefully it helps support his liver.


Rated 5 out of 5 stars
By Evonne on Feb 19, 2026

It is working!

My dog has been on meds for Valley Fever for nearly 7 years. This medication can damage a dog's liver. Lucy has been taking denamarin since the beginning, and her

My dog has been on meds for Valley Fever for nearly 7 years. This medication can damage a dog's liver. Lucy has been taking denamarin since the beginning, and her liver counts are still normal. This product is really helping my little dog.


Rated 5 out of 5 stars
By Nancy on Jan 13, 2026

Service

Nothing amazing - Coco has been on this product already. Product is the same I get from her vet. It is just easier to order on the computer rather than have to

Nothing amazing - Coco has been on this product already. Product is the same I get from her vet. It is just easier to order on the computer rather than have to drive across town to get to the vet. It is also a little cheaper from Chewy and it was delivered very quickly.


Rated 1 out of 5 stars
By Garnet on Mar 5, 2026

Great customer service!

Very pleased with product. I can see a noticeable improvement in my dogs health. More active and much happier. Thanks so much! Your doing great.

Very pleased with product. I can see a noticeable improvement in my dogs health. More active and much happier. Thanks so much! Your doing great.


Rated 5 out of 5 stars
By Carmen on Mar 30, 2026

Perfect!

My dog chews these as if they were kibble. I don't even have to smother them in food gravy or peanut butter.

My dog chews these as if they were kibble. I don't even have to smother them in food gravy or peanut butter.


Rated 5 out of 5 stars
By Lori on Mar 26, 2026

So much cheaper than our vets pharmacy

Oh wow! So happy to find this at such a great price because our 16yr old dog's liver is flourishing on this.

Oh wow! So happy to find this at such a great price because our 16yr old dog's liver is flourishing on this.