FREE Shipping over $49 - Potential Port Container Delay
Cart 0

Denosyl 90 mg, 30 Tablets, and Receive Marin For Cats Free, 60 Tablets -
Roll over to zoom
Denosyl 90 mg, 30 Tablets, and Receive Marin For Cats Free, 60 Tablets
by Nutramax Laboratories

$25.56 $28.00 (9% off)
Item #: MD-16810
Ship Weight: 0.7011 lb

Our Guarantee
30-Day Returns     No Restock Fee     Hassle Free Returns

We Accept Paypal, VISA, Mastercard, American Express, and Discover


This is an over the counter product - it does not require prescription.

Denosyl (S-Adenosylmethionine)

Denosyl, a nutritional supplement, is the pure and stabilized salt of S-Adenosylmethionine for veterinary use only. It is the only brand researched in U.S. trials for veterinary use in dogs and cats. Denosyl is available in three strengths: as an enteric-coated 90 mg, 225 mg, and 425 mg tablet of active S-Adenosylmethionine. Because S-Adenosylmethionine is extremely sensitive to moisture, tablets are individually sealed in specialized moisture-resistant blister packs.:

S-Adenosylmethionine is an endogenous molecule synthesized by cells throughout the body and is formed from the amino acid methionine and ATP. It is an essential part of three major biochemical pathways: transmethylation, transsulfuration and aminopropylation. As part of these pathways, S-Adenosylmethionine is essential to all cells and is particularly important in hepatocytes because of their central role in metabolism. A deficiency of S-Adenosylmethionine, therefore, may initiate or contribute to abnormalities of cellular structure and function in the liver as well as many other body tissues.

Conversely, exogenous administration of S-Adenosylmethionine has been shown to result in improvements in hepatocellular function in both in vivo and in vitro studies, without cytotoxicity or significant side effects.1-9 Precursors of S-Adenosylmethionine do not have similar effects. Administration of methionine to animals with decreased liver function may not increase hepatic S-Adenosylmethionine levels and may be toxic.6 The best way to increase S-Adenosylmethionine levels in the body is by direct supplementation with S-Adenosylmethionine.

Denosyl has been shown to increase hepatic glutathione levels in cats and dogs.1,7 Glutathione is a potent antioxidant that protects hepatic cells from toxins and death. A study found that low liver glutathione concentrations are common in dogs and cats with decreased hepatobiliary function.10 Denosyl is recommended to improve hepatic glutathione levels in patients to help maintain and protect liver function. Denosyl may also be used in other areas of tissue oxidant injury and RBC fragility caused by certain toxins or drugs which are related to reduced glutathione concentrations.6 Denosyl, however, goes beyond increasing glutathione levels and has been shown to protect liver cells from cell death2,8 and may be useful in cell regeneration.6 A study has also shown that Denosyl may improve bile flow in cats.5


In a pharmacokinetic study with fasted dogs given Denosyl, peak plasma levels were recorded within 4 hours of administration.1 A pharmacokinetic study in fasted cats showed peak plasma levels at 2-4 hours post Denosyl administration.7,11

Denosyl demonstrates an exceptionally wide margin of safety. Oral acute toxicity studies in rats indicated an LD50 greater than 4,640 mg/kg.6 Clinically healthy dogs administered 20 mg/kg/day of Denosyl for 6 weeks and clinically healthy cats administered Denosyl at 2 times the recommended daily amount for 113 days remained healthy with no adverse effects from administration of Denosyl.1,7

Administration as a Nutritional Supplement:
Because the tablet must be kept intact to prevent destruction by stomach acid, administration range is based on the nearest whole-tablet. The chart below is provided as a guide for administration. Daily administration may also be calculated based on 20 mg/kg of body weight and rounded to the closest tablet size or combination of sizes.

For optimal absorption, tablets should be given on an empty stomach, at least one hour before feeding, as the presence of food decreases the absorption of S-Adenosylmethionine. For those owners who have difficulty administering tablets to their pets, Denosyl® tablet(s) may be disguised in a small bite of food. Studies

have shown that, in many cases, tablets or capsules given as a "dry swallow? do not pass into the stomach in cats but may become lodged in the esophagus. It is recommended for pet owners to administer 3-6 cc of water immediately following any tablet administration to speed passage of the tablet into the stomach.12,13 Denosyl 90 mg tablets are ideal for cats because of their small size. If the pet is to receive more than one tablet daily, the total number of tablets may be divided between morning and evening for ease of administration. For example, a daily administration of three tablets could be divided into two tablets in the morning and one tablet in the evening.

For Cats and Small Dogs

Body Weight

90 mg Denosyl



Up to 12 Up to 5.5 One tablet

For Medium Dogs

Body Weight

225 mg Denosyl



13 to 34 6 to 15.5 One tablet

For Large Dogs

Body Weight

425 mg Denosyl



35 to 65 16 to 29.5 One tablet
66 to 120 30 to 54.5 Two tablets
Over 120 Over 54.5 Three tablet

Marin For Cats

Product Description:
Marin For Cats is specially formulated with silybin and vitamin E to provide comprehensive hepatic support.

Active Ingredients:

Vitamin E (As d-α Tocopheryl Acetate)

50 IU

Silybin A+B

9 mg*

Other Ingredients:
Dicalcium phosphate, microcrystalline cellulose, natural tuna flavor, natural chicken flavor, phosphatidylcholine, silicon dioxide, and magnesium stearate.

* In a phosphatidylcholine complex to improve bioavailability.

Marin for Cats is a combination of silybin and vitamin E for veterinary use only. It is available as a single strength tablet.

Silybin is the most biologically active component of an extract known as silymarin. Silybin/silymarin has been shown to have beneficial effects on liver function. Vitamin E, a membrane-associated antioxidant, helps protect the liver against oxidant injury.

Silybin has low bioavailability. Marin, therefore, has been specially formulated to address this issue. It contains silybin in a complex with soybean phosphatidylcholine, resulting in superior absorption and bioavailability compared to silymarin or silybin administration alone. A study in dogs showed plasma silybin levels more than four times higher with administration of a silybin-phosphatidylcholine complex (SPC) than obtained with administration of silymarin alone (see Figure 1). Studies in rats showed that administration of the silybin-phosphatidylcholine complex was capable of reaching effective intracellular levels in liver microsomes not achieved with silybin administration alone.

There are no known drug interactions or contraindications to the use of silybin/silymarin in animals.While mild side effects, such as gastrointestinal upset, itching and headache, have been rarely reported in primates,side effects have not been noted in cats.

Vitamin E is also well-tolerated in recommended amounts.

Marin® For Cats is available as tablets that may be given orally or crumbled over the food. Recommended administration amounts are provided below.


Body Weight

Marin for Cats

Up to 14 lbs

1 tablet

Over 14 lbs

2 tablets


  • Store in a cool dry place. Keep tablets in bottle until used.
  • Store in a cool, dry area out of direct sunlight.
  • Keep lid tightly secured to ensure freshness.
  • Keep bottle out of the reach of children.
  • This bottle contains (1) non-toxic desiccant to help preserve freshness and ensure the shelf life of the product.

Featured Collections

View all Collections

Questions & Answers

Have a Question?

Be the first to ask a question about this.

Ask a Question

Customer Reviews

Sponsored Ad