My Colloidal Silver Protocol for Dogs and Cats
By: The Animal Naturopath
I developed this protocol for myself and my clients and have used it for over ten years with excellent results. My approach to the canine infectious respiratory disease complex is below.
I also use Colloidal Silver for all kinds of bacterial and viral infections. One great thing about this natural supplement is that it has no side effects that I am aware of.
DISCLAIMER: I am sharing what I do, and it is up to you if you want to follow this protocol. There is no scientific evidence to back up the results that I have observed; they are all anecdotal.
I use Colloidal Silver in a 10-15ppm solution, which is plenty. Make sure you use a good brand.
The protocol has 4 stages; below are the frequencies and dosages I have used for each category.
- Maintenance: Once a day. Stay on this forever; that is what I do, and this dose is a very effective preventative dose. Add to water or give by a feeding syringe. See dosages below.
- Restoring the immune system: 2-3 times a day. Follow this for 2 weeks, then go back to stage 1. Add to water and use a feeding syringe between meals for the 2-3 times dosages. See dosages below.
- When dealing with a chronic condition: 4-5 times a day. Follow this until you see improvements, then go to stage 2. Add to water and use a feeding syringe between meals for the 4-5 times dosages. See dosages below.
- Acute condition (short term): 5-7 times a day. Follow this for 2 weeks, then go back to stage 2. Add to water and use a feeding syringe between meals for the 5-7 times dosages. See dosages below.
The dosages listed below are guidelines for the dosage given to your pet based on size. This can be given for most conditions. Give between food; do not add to food. Use a feeding syringe to administer into the mouth. Don’t force the mouth open; most pets will not like this. Lift the lip up on the side and stick the tip of the syringe between the teeth; there are openings there.
You can also add to drinking water. Use the spray on cuts, wounds, and tumors. If your pet has cancer, I have specific protocols for that. Please get in touch with me.
Small Dogs and Cats.
2-10 lbs: 1 tsp (5 ml)
11-25 lbs: 1 1/3 tsp (7 ml)
Medium breed dogs
26-40 lbs: 2 tsp (10 ml)
41-55 lbs: 2.5 tsp (12 ml)
Large to giant breed dogs
56-80 lbs: 3 tsp (15 ml)
81-100 lbs: 3.5 tsp (17.5 ml)
101-150 lbs: 4 tsp (20 ml)
151-200 lbs: 4.5 tsp (22 ml)
You do not have to be super accurate about the exact dosages. These are guidelines. More is better than less when you deal with stages 2 and 3. You can’t do any harm by adding more. You’re just wasting CS.
Suggestions for canine infectious respiratory disease complex
Symptoms:
- Coughing
- Runny nose
- Runny eyes
- Sneezing
- Lack of energy
- Difficulty breathing (unusual panting)
- Rapid breathing
- Pale gyms (should be pink to light red)
- Lack of appetite (this is part of the healing process so not the biggest concern unless it goes on for days and the dog becomes weaker). Contact me if this is the case.
Action
The moment you detect any of these symptoms, go to stage 4 and stay there until you see improvements like less coughing and more energy. Then go to stage 3,2, and then 1.
If you do not see improvements, please get in touch with me for help with a protocol designed for your specific case and one that will work for you and your pet. The quickest way to get help is to book a consultation (link in menu). I am being inundated with requests for help, and I am behind on my responses.
Update 11-25-23
Over the last week, I had 3 people with dogs showing the symptoms of this condition contact me. Two from Colorado. A 4-year-old Bernese Mountain dog, and a 6-year-old Rottweiler. The 3rd dog was an 8-year-old Labrador from Oregon. They all followed the protocol above, and the two from Colorado made significant improvements within 48 hours. The Lab from Oregon took 4 days to show significant improvements. I believe this has to do with her age, and that she had been on kibble for the first 6 years of her life. They are all raw-fed now.
I want to make clear that these are only 3 cases, and they all caught it early. I am not saying this will work for everyone. Early detection is the key and a healthy immune system is a huge benefit for a quick recovery.
A word about the food.
Many know I am a strong advocate of raw feeding since I believe dogs have a carnivorous digestive system and will thrive on raw meat and bones. That’s why I started the world’s longest (30 years) and largest (5K+dogs and cats) observational raw feeding study in 2000. My goal is to collect data when it comes to longevity and chronic diseases like cancer in dogs and cats.
The biggest takeaway from this study so far is a drastic reduction of chronic diseases in these dogs. This translated to a stronger immune system that protects these dogs better against pathogens that can cause our dogs and cats to become ill. I am preparing a large report based on the observations from this study that I hope to publish in a year or two.
I will keep updating this page as I get results back from more cases and find other modalites that may help.
If you have any questions about this protocol and need help with your pet don’t hesitate to get in touch with me.
Additional information
If you are uncertain about claims that dogs are closely related to carnivores please read this article
If you are uncertain about what Colloidal Silver is and how I make mine please read this article.
You can download this protocol here
Starting an observational study
Since this condition is in its infancy and nobody really knows what is going on, I would like to learn as much as I can and, at the same time, try to save as many dogs as possible using modalities that are harmless. If what I think is working, that would be the best solution, but I need more confirmation beyond the few cases I have seen.
If you decide to follow this protocol, I would like you to consider participating in am observational study so we can collect mos information to help others manage this disease. I will create a group so we can all share what we do. Let me know if you are interested in participating in this.

Thomas Sandberg CSAN, CCNC, AADP
Thomas Sandberg is a board certified animal naturopath and carnivore nutritionist. He founder of Long Living Pets Research Projects, a 30-year observational study into raw-fed dogs and cats. Thomas also consults in animal naturopathy, including the prevention of chronic diseases and longevity using all-natural modalities. With more than 20 years of experience with hundreds of cancer cases, he has a deep understanding of why so many dogs and cats get cancer today and how we can lower the risk significantly.
Need help with your pet?
Do you have health issues that you cannot resolve with conventional therapies? Are you looking for a natural approach to help your pet live a long healthy life?
This is possible, and what I do. My approach is to restore the immune system in dogs and cats so they can achieve homeostasis. That is the best protection against pathogens that can lead to diseases.





I’m wondering if this protocol can be used for a small , close to eleven years of age, diagnosed with mitral valve disease?
Hi
I’m not sure if it will benefit this condition, it will not have any negative effect as far as I know.
Thomas
Hi. Have read theu this several times. My three year old rough collie has had this illness for 14 weeks. He had the snot, congestion, wheezing, fatigue, cough, reverse sneezing. Did standard vet stuff 4 rounds antibiotics, steroids etc. I decided to nebulize him with my asthma meds and gave albuterol and a steroid in nevulizer. This was most significant help.
I then added the colloidal silver in nebulizer and orally, manuka homey and olive leaf extract, ester c immune booster, a multi vit, turkey tail mushroom and probiotic. He is much better. I also started making his food. I use to do 1/3 homemade but now am up to half and Im doing gently cooked and following recipes so it has organ meets and calcium etc that he needs. Hes 80 pounds so its quite a feat to do all home cooked.
My remaining issue is the snot. Its light green in morning and he hacks a bunch up. i nebulize with silver and salne. it helps get it out
But it still there. every morning.
we have been diligent getting him well
Hi
I apologize for the late reply.
You are doing a lot of good things. The closer you can get to a full raw food diet the better his immune system will become. This will help the body heal itself. I believe this will help with the remaining issues.
Green discharge in a dog’s snot usually indicates a bacterial infection. This type of discharge is often purulent and can be a sign of a nasal infection caused by bacteria, fungi, or viruses. The CS should be able to knock this out.
Did you administer the CS internally too? I suggest you give him 20ml with a feeding syringe 3-5 time a day for one week. Contact me if you still have issues.
I have a kitten 10 weeks with a upper respiratory infection. On her 4 th week. Poor thing she has trouble breathing and has a lot of discharge from her nose. Her mom was killed at 6 weeks and we had to put her on canned food at that time. Theyre strays. She has been doing good on the wet food just cant shake the conjestion. I got silver, 500 strength to use on her. Some say that some cats just have it for the rest of her life but Im not gonna accept that. I want to dilute the silver and start dripping into her nose and giving orally. Not sure how to dilute. I read in distilled water. I really hope she gets better with this.
Hi Patty
No, don’t accept that! But, don’t use the 500ppm. You need the 10-20ppm solution. Use that as the drinking water (undiluted) until the symptoms are gone. Should be less than a week. You can also nebulize the CS. Put the cat in a small crate cover it and let the nebulizer run for 15-20 minutes. I also recommend switching to an all raw food diet, that will make a big difference. You can heal this completely. I’ve done done it many times.
Thomas
Hello,
I adopted a 9 mth old kitten and while he appears healthy, he tested positive for Giardia. I only discovered this when two of my cats became ill with diarrhea and vomiting. My girl, who went to the vet as she was very lethargic, actually had a negative fecal. The next day my older boy had bad diarrhea, though acting fine. I decided to have my new kitten tested and turns out he was positive for Giardia even though his stools are normal. Vet told me to give them all Panacur. My two younger ones didn’t seem affected by this medication but the day after giving that to my older cat, he wouldn’t eat and was not acting himself. I really hate meds and want to find something natural that can help rid him of this parasite. Will colloidal silver help with this and if so, what would be the proper dosage for this issue?
I have a 3 yr old cat who weights approx 16 lbs. He suffers from rodent ulcers in the mouth. He has been diagnosed with an immune disorder and has been on prednisolone and antibiotics when he has flair ups. He is currently on both meds as of today. My question is if it is ok ok to add colloidal silver to his regimen while he is taking his Rx.? I anticipate your response as he is not feeling well🙁
Hi
Administering CS is the best thing you can do. Give it as drinking water for a week or so. Then dilute that 50% for a week. If things improve you can dilute it more.
CS does no interfere with anything you are giving. Hopefully you can get off the drugs. Feeding a raw food diet will make a huge difference too. It’s the only food that can restore the immune system.
Hello, is it possible for CS to make cats nauseated and vomiting?
Hi
I have never experienced this. I have some cat owners give CS as drinking water (10-20ppm) when dealing with serious chronic diseases.
My friend has a dog that has an ear infection that is not responding well to antibiotics. It is a medium sized dog, is reluctant to drink and I wondered if Colloidal Silver used as ear drops may work. The vet has now given her steroid drops for her ear.Could you advise? Thanks
Hi
Yes, colloidal silver has worked for this in many cases, and the good thing is that it has no side effects. Another important part is the diet. I highly suggest a raw food diet. That alone has healed many similar cases.