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1-800-PetMeds EXCLUSIVEDog Worms 3

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Product Info
How to Use
Customer Reviews
Product Info

What is Dog Worms 3?

PetMeds Dog Worms 3 is an FDA-approved broad spectrum de-wormer for dogs and puppies. It is the most comprehensive OTC (no prescription required) de-wormer on the market, and is used to safely control and treat the three most common worms in dogs: roundworms, hookworms, and tapeworms. The chewable tablets are pork liver flavored, and are available in 2 count and 12 count packages.


Dogs (12+ weeks of age, weighing 6+ lbs)


  • Protects your pooch by controlling and treating the most common canine intestinal worms such as roundworms, hookworms, tapeworms.
  • Comes in easy-to-administer pork liver flavored chewable tablet.
  • Flexible dosage to adapt to pet size.
  • Safe and effective.
  • FDA approved.
  • Made in the USA

How does Dog Worms 3 work?

Each Dog Worms 3 chewable tablet contains pyrantel pamoate and praziquantel. Pyrantel pamoate causes the parasite to lose grip of the intestinal wall, which makes it pass out of the system naturally. Praziquantel damages the parasite's skin internally, so the parasite disintegrates and is removed by your dog's immune system.


The safety of Dog Worms 3 in breeding dogs and pregnant bitches has not been determined. Consult your veterinarian for assistance in the diagnosis, treatment and control of parasitism. Side effects that may occur can include vomiting, loose stools (with or without blood) and decreased activity following treatment. If you notice these signs, contact a veterinarian. If accidental overdose occurs, contact your veterinarian or veterinary emergency clinic. In the event of accidental ingestion by humans, contact a physician immediately. In case of ingestion by humans, contact a physician immediately. Physicians may contact a Poison Control Center for advice concerning ingestion by humans.

How to Use

Dog Worms 3 Directions:

  • Dog Worms 3 is to control and treat roundworms, hookworms, and tapeworms in dogs.
  • Dog Worms 3 for Puppies and Small Dogs is for dogs 6 to 25 lbs.
  • Dog Worms 3 for Medium and Large Dogs is for dogs greater than 25 lbs.
  • Give the proper dosage by hand or place in your dog's food container.

Because humans can contract tapeworms from animals, it is important to clean up after your pet and to wash your hands thoroughly.

Dog Worms 3 for Puppies & Small Dogs:
6-12 lbs
Give 1 tablet as a single dose
12.1-25 lbs
Give 2 tablets as a single dose
Dog Worms 3 for Medium & Large Dogs:
25.1-50 lbs
Give 1 tablet as a single dose
50.1-100 lbs
Give 2 tablets as a single dose
100.1-150 lbs
Give 3 tablets as a single dose
150.1-200 lbs
Give 4 tablets as a single dose
Do not use!
Do not use!

Should be stored at room temperature.


Dog Worms 3 Ingredients:

Dog Worms 3 for Small Dogs and Puppies (6-25 lbs)
Active Ingredients (per tablet)
Pyrantel Pamoate
30 mg
30 mg
Dog Worms 3 for Medium and Large Dogs (greater than 25 lbs)
Active Ingredients (per tablet)
Pyrantel Pamoate
114 mg
114 mg
Customer Reviews
Dog Worms 3 is rated 4.9 out of 5 by 267.
Rated 5 out of 5 by from Finally something that works! Our Dobie had a bad case of what turned out to be tapeworms. Our vet referred us to the local farm supply store where we bought a liquid wormer. Nothing. I bought this product and within 3 days, she is free and clear with no side effects at all. We couldn't be happier. We're long-time customers of PetMeds and they have never let us down.
Date published: 2016-01-10
Rated 5 out of 5 by from Works great I administered this product to all three of my mixed breed dogs and all three are showing no worm sign within 2 days. Love it!
Date published: 2016-01-03
Rated 5 out of 5 by from Lived up to my expectations! I was counseled by the knowledgeable staff at PetMeds about this product. My vet approved it for use on our rescued Great Dane, that has had issues with multiple parasites, including heartworm. I then scoured the page to see if this product worked as well on the extra-large breeds as well as the small ones, then ordered the product. Due to the size and complications with our Dane, I decided to wait a week before offering a review to make certain the product lived up to it's claims. Why it didn't work for some folks is beyond me. If the dosing is right and the worms properly diagnosed, this medication is a no-brainer, AND EFFECTIVE!!! One dose of 3 tablets - NO MORE TAPE WORMS!!! And if she gets them back, we have extra tablets for her (or for our other dogs if necessary). GREAT PRODUCT!!! Thanks for the recommendation, Pet Meds!!!
Date published: 2015-12-08
Rated 5 out of 5 by from Dogs worms 3 I been looking for this product... we really need it please
Date published: 2015-11-07
Rated 5 out of 5 by from Peace of mind! I bought this product for my lab and corgi. I got the 12 count med. to large dog. I gave my lab 2 and my corgi just 1 as directed for their weight. The wormer appears to be doing a great job and I've seen NO side effects. I'm very pleased!
Date published: 2015-08-26
Rated 5 out of 5 by from VERY SAFE and effective My 18 pound pug and my 40 pound husky/border collie mix both developed minor cases of tape worms after a sudden flea infestation. We gave each of my girls one dose which definitely knocked them out. But, my border/husky decided she loved the meaty taste SO much that she climbed up the shelf and ate the 2nd dosages that were remaining for both her and the pug, all within one hour of taking the original dosage. I contacted the emergency number that comes on the pamphlet with Worms 3 where I spoke with a woman who was very helpful and assured me that the product would not cause any harm to my girl even though she gave herself quite a large dosage. Needless to say, her tape worms are gone lol. But, we saw no adverse effects from the overdose and two weeks later both of my girls are happy and healthy! I highly recommend this product as an affordable and SAFE method of treating worms.
Date published: 2015-08-08
Rated 5 out of 5 by from Worked! I was very shocked to see tapeworm segments in my dogs stool. I decided to try this product and it has been a week since I administered the medication. I have not seen anymore of the tape worm segments and my dog seems to be more relaxed and less stressed. My dog also did not have any side effects with the medication. I am very pleased with this product.
Date published: 2015-07-29
Rated 5 out of 5 by from Great Product I recently got a puppy that had not been given any worm meds and he had a terrible case. I got this product for him and it's been a week since giving it to him and still no sign of worms. He's a happier pup that's for sure. I will continue with treatment for his 10 and 12 weeks. He was dosed at 8 weeks.
Date published: 2015-07-18
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 Why is every option for this product not available??  Are you getting more in stock? 

Asked by: Kimm
Please call our pharmacy team at 1-888-738-6331 or email to see if its in stock today.
Answered by: Ben B
Date published: 2017-03-04

Can Dog Worms 3 be used with a dog already on Heartguard Plus?

Asked by: Anonymous
Answered by: VIOLET
Date published: 2017-02-13

How long are they going to be "OUT OF STOCK"????

Asked by: wolvmech
We are very sorry, one of the raw materials needed to manufacture this product is on a nationwide back order with no back to stock date available as of yet.
Answered by: Amy Petmed Pro
Date published: 2017-01-14

Do you give the single dose every 3 months, 6 months?? It doesn't say the frequency of the dosages.

Asked by: Genie
We do not have this product in stock at the moment. With deworming any pet we will advise you to consult your vet to get the information since they have your pets records.
Answered by: Carolyn Petmed Pro
Date published: 2017-01-27

Will this product work on whipworms? 

Asked by: Sprtsfan
Answered by: Lilli Pharmacist
Date published: 2016-11-10

I would like to purchase dog wormer 3 broad spectrum in  a larger quantity. I have purchased 12 count for years from you but I can not find it.  Can u please clarify.  Thanku. 

Asked by: Terry Ledoux
Unfortunately, we are out of stock on this medication at this time.
Answered by: Christine
Date published: 2016-10-03

I called to order it it sounds great, I was told it's on back order maybe next week but I see the same question was asked 6 months ago. Was it in and now back out? Or hasn't been in for that long?

Asked by: Tommy T
Unfortunately, this product is not due in until end of this year. Some customers have been using this product until we have more Dog Worms 3.
Answered by: Laura PetMed Pro
Date published: 2016-07-26

When will this product return?

Asked by: Trumaine
I'm sorry but currently that item is out of stock, and we do not have a back-to-stock date on that product. We do ask that you check back with us periodically, and we can advise you further.
Answered by: Cherley Petmeds Pro
Date published: 2016-07-26
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