• Zentonil Plus for Small Dogs & Cats 100mg (30 tablets)

    Zentonil Plus for Small Dogs & Cats 100mg (30 tablets)

    SKU: 423454
    Regular Price: $39.99Sale Price: $33.56
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    This item is currently out of stock and should be shipped 4-6 weeks. We recommend trying Denestra® 100 mg (60 Tablets) & Hepatica™ for Cats and Smaller Dogs (60 Tablets)

    ZENTONIL is a nutritional supplement intended for dogs and cats with liver diseases.

    ZENTONIL is a nutritional supplement that provides an effective therapeutic agent for liver support in dogs and cats. The ingredient, S-adenosylmethionine (SAMe), is a naturally occurring compound that is found in almost every tissue and fluid in the body. ZENTONIL can be used in all cases where the liver requires some support such as...

  • acute or chronic liver damage
  • mild liver disease
  • regular treatment of liver damaging drugs (Phenobarbital, NSAIDs, glucocorticoids, etc.)

  • SAMe is used by the liver in many biochemical pathways. It has been shown to strengthen the cell membranes; thus, improving liver cell function and providing the building blocks for antioxidants used by the liver.

    ZENTONIL Facts:

  • Nutritional supplement
  • Natural chemical produced from the amino acid called methionine
  • Protects and supports healthy liver functiont
  • Improves antioxidant levels that protect cells from toxins
  • Protects and repairs liver cells
  • Easy-to-administer, palatable tablets that can be split
  • Available in different sized, scored tablets 100 mg, 200 mg and 400 mg
  • Top

    Usage Information

  • Use as directed by your veterinarian
  • Follow the instructions on the label
  • ZENTONIL at room temperature and away from light and moisture
  • Be sure to continue the medication to insure a full recovery, even if your pet seems to be improving or unless you consult with your veterinarian
  • Duration of administration depends on the condition being treated and the response to the medication and development of any adverse effects
  • Allow your pet access to plenty of water
  • ZENTONIL should be administered on an empty stomiach - 1 hour before or 2 hours after meal

  • Dosage for Dogs and Cats
    Body Weight (lbs) ZENTONIL 100 ZENTONIL 200 ZENTONIL 400
    Less than 5 lbs 1/2 tablet - -
    5 - 11 lbs 1 tablet 1/2 tablet -
    11 - 22 lbs 2 tablets 1 tablet 1/2 tablet
    22 - 33 lbs - 1.5 tablets 1 tablet
    33 - 44 lbs - 2 tablets 1 tablet
    44 - 66 lbs - - 1.5 tablets
    66 - 110 lbs - - 2 tablets
    Over 110 lbs - - 3 tablets

    Dosage FAQ's
  • Im the case of a missed dose of ZENTONIL, give it as soon as you remember or just wait until it is time to give the next one. DO NOT GIVE A DOUBLE DOSE OF ZENTONIL.
  • In the case of an overdose of ZENTONIL, seek attention from your veterinarian.

  • ZENTONIL Warnigs:
  • Do not give ZENTONIL to any animal that has had an allergic reaction to SAMe
  • Blood tests are necessary to monitor liver values

  • Possible Side Effects With Zentonil:
  • Nausea
  • Behavioral Changes

  • This supplement is usually well tolerated. If you notice anything unusual, contact your veterinarian.


    Methionine as S-Adenosylmethionine: 200mg per tablet, lactose, magnesium oxide

    Guaranteed analysis:
    Crude protein (Min.) 29.00%
    Crude Fibre (Max.) 22.00%
    Crude ash (Max.) 6.10%
    Moisture (Max.) 5.61%
    Crude fat (Min.) 1.80%
    Sodium (Min.) 0.84%
    Copper (Min.) 3 mg/kg

    Keep in a cool and dry place.
    Store in the original pack.
    Keep the container tightly closed.
    Keep out of reach of children

    Customer Reviews

    DISCLAIMER: The results described on the testimonials on this site, are the individual experiences and personal opinions of those who have purchased and used the products. These testimonials are not intended to make any claims that the products can be used to diagnose, treat, mitigate, cure or prevent any disease or medical condition.
    Click here to see all reviews


    Good purc hase by Fran from Indio CA06/05/2014

    My dog needs this product and you have the lowest price on this

    VET PRESCRIBED VITAMIN by LI Dog Mom from Long Island06/20/2014

    As far as the product itself I can't say whether or not I would recommend it as this was a vitamin prescribed by my Vet. I can only really judge its price and the efficiency of the order process...which was great...lowest price I found...easy ordering...and fast delivery!

    great savings at Entirely Pets by Barb03/05/2014

    Zentonil Pluse was prescribed for my yorkie due to her having liver shunt disease,I payed 40.00 for 30 tablets at the vets even with shipping the meds was half price at Entirely Pets,my yorkie will have to be on this the rest of her life,so I will be a repeat customer.If you have a yorkie with liver shunt disease this is the only meds that helps,surgery will be your next choice,I hope this helps another yorkie owner.Barb

    Cost by Bob from Elko, NV01/11/2014

    50% cost of what my vet wanted- same medicine


    Questions and Answers

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