MAXI/GUARD Oral Cleansing Formula
What is MAXI/GUARD® Oral Cleansing Formula?
MAXI/GUARD® Oral Cleansing Formula is an oral cleanser and freshener for dogs, cats, exotics, and horses. It contains zinc, which has been proven to decrease plaque and gingivitis, as well as ascorbic acid (vitamin C), which has been shown to aid in collagen synthesis and may improve gum healing time after oral surgery.
The U.S. Food and Drug Administration (FDA) does not review non-drug health supplements (e.g., herbals, nutraceuticals, shampoos, and other supplements) for safety or effectiveness before they are sold to the public. Manufacturers of non-drug health supplements must ensure their supplements are safe and labeled accurately. The FDA requires that these non-pharmaceuticals contain a disclaimer that says, “This supplement is not intended to diagnose, treat, cure or prevent any disease.” Health Canada licenses “veterinary health supplements” after reviewing safety, efficacy, and manufacturing information provided by the manufacturer. These supplements are not tested by Health Canada.
Your veterinarian is the best source of information about the safety of non-drug health supplements in pets. Just because a supplement is natural does not mean it is safe. All medicines and medicinal plants are potentially toxic if used inappropriately or given at high doses. Supplements can also have side effects, like pharmaceuticals. Few supplements and herbs have been subjected to rigorous scientific trials to determine their efficacy.
Although the information in this handout may be helpful, it may also be incomplete and may not represent the full range of effects the supplement could have on your pet.
How do I give my pet MAXI/GUARD® Oral Cleansing Formula?
- MAXI/GUARD® Oral Cleansing Formula is given orally (by mouth) and comes in a liquid spray format.
- To prepare for first use, follow the instructions on the product.
- Large dogs and horses: Spray gums above the back molars on each side of the mouth, directly from the spray applicator.
- Smaller dogs, cats, and exotics: Apply the spray onto a swab or gauze pad and then apply to the outside of the pet’s back molar teeth and gums.
- Once applied to the molars, the product will naturally be distributed to other areas of the mouth.
- MAXI/GUARD® Oral Cleansing Formula may be used on a full or empty stomach.
- MAXI/GUARD® Oral Cleansing Formula is tasteless, so well tolerated.
- Ideally, give this supplement at the same time daily.
This product should take effect within 2–4 weeks, and improvement in clinical signs should follow.
Use of MAXI/GUARD® Oral Cleansing Formula should not be considered a substitute for sound veterinary dental treatment. This product should be used under the direction of a veterinarian who can advise on a complete oral health program.
What if I miss giving my pet MAXI/GUARD® Oral Cleansing Formula?
If you miss an application, give it as soon as you remember and then continue with the regular dosing schedule. However, if it is almost time for the next scheduled application, skip the missed dose and resume the regular schedule. Do not give the pet two doses at once.
Are there any potential side effects?
MAXI/GUARD® Oral Cleansing Formula has no known or documented side effects. Sensitivities can develop over time, with repeated exposure. Your pet may have no reaction after the first few doses but may develop a sensitivity later. It is important to watch for signs of an allergic reaction over the entire course of treatment.
This supplement should stop working within 24 hours, although effects can be longer in pets with liver or kidney disease.
Are there any risk factors for this supplement?
DO NOT USE MAXI/GUARD® Oral Cleansing Formula in:
- Pets that are allergic to it
Are there any drug interactions I should be aware of?
There are no documented drug interactions for this medication. Be sure to tell your veterinarian about any medications (including vitamins, supplements or herbal therapies) that your pet is taking before starting any treatment.
Is any monitoring needed with this supplement?
- Follow your veterinarian’s recommendations regarding when your pet needs to be rechecked and what tests may need to be performed before and during treatment with this product.
- At home, monitor for any abnormal changes. If any occur, discontinue the supplement and contact your veterinarian.
How do I store MAXI/GUARD® Oral Cleansing Formula?
- Store in refrigerator after mixing.
- Ensure bottles are tightly sealed.
- Keep out of the reach of children.
What should I do in case of emergency?
If you suspect an overdose or an adverse reaction to the supplement, call your veterinary office immediately. If they are not available, follow their directions in contacting an emergency facility. Be prepared to provide information about the product and your pet’s weight and symptoms. Report any adverse effects to the FDA or Health Canada.
© Copyright 2025 LifeLearn Inc. Used and/or modified with permission under license. This content written by LifeLearn Animal Health (LifeLearn Inc.) is licensed to this practice for the personal use of our clients. Any copying, printing or further distribution is prohibited without the express written consent of LifeLearn. This content does not contain all available information for any referenced medications and has not been reviewed by the FDA Center for Veterinary Medicine, or Health Canada Veterinary Drugs Directorate. This content may help answer commonly asked questions, but is not a substitute for medical advice, or a proper consultation and/or clinical examination of your pet by a veterinarian. Please contact your veterinarian if you have any questions or concerns about your pet’s health. Created on Sep 5, 2025.