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Worms are common parasites that can infest a dog’s digestive system and, in the case of heartworms, even their blood vessels. Parasite prevention is an important part of keeping your dog healthy. Fortunately, there is a vast number of medications that are safe and effective in protecting your dog from worms.
However, this variety of medication and information can sometimes be confusing for dog owners. Adult dogs can be dewormed every month to 3 months, depending on the schedule you choose. However, puppies need to be dewormed more frequently.
In this article, we will discuss worming schedules for dogs and puppies, different options for keeping your dog safe against worms, the types of products you can use, and a summary of the various worms that dogs can pick up. When thinking about parasite prevention, you should also consider prevention for external parasites such as fleas and ticks.
Puppy Deworming Schedule
Pups under 6 months old have a unique deworming schedule since they are more susceptible to the parasites. Over the age of 6 months, pups can be started on one of the adult deworming schedules. However, until then, you should deworm your puppy more frequently. Here is the recommended schedule for puppies, along with the timing of their vaccinations:
Age
Treatment
2 weeks
Dewormer
4 weeks
Dewormer
6 weeks
Dewormer
8 weeks
Dewormer and first vaccination
10 weeks
Dewormer
3 months
Dewormer and second vaccination
4 months
Dewormer and third vaccination
5 months
Dewormer
6 months
Dewormer
Image Credit: Anikin Dmitrii, Shutterstock
Product Examples
Your veterinarian will likely prescribe parasite prevention for your puppy and may recommend different medications at different times. However, if you purchase it yourself, you should look for products that cover all the necessary parasites and are safe to administer at your pup’s age.
In general, puppies can start receiving heartworm, flea, and tick prevention at 8–12 weeks old. Read the product description carefully to ensure it’s right for your dog, but some good products to look at include:
NexGard PLUS Chew for Dogs
Simparica Trio Chewable Tablet for Dogs
Drontal Plus Tablet for Small Dogs & Puppies
Revolution Topical Solution for Kittens & Puppies
PetArmor Sure Shot 2X Dewormer for Hookworms & Roundworms for Dogs
Adult Dog Deworming Schedules
While there are 101 combinations of medication you can use to kill all the parasites your dog needs protection from, there are two different schedules for deworming. It all depends on how you choose to prevent heartworms in your dog.
Image Credit: sophiecat, Shutterstock
Yearly Heartworm Preventative Deworming Schedule
This worming schedule starts with an injection called Proheart, which is an injection of moxidectin that protects your dog against heartworm for a full year or 6 months, depending on which injection is given.
Your veterinarian will usually prescribe and administer this medication during routine checkups. Dogs with Proheart on board will still need medication to kill intestinal worms. It is typically given every 3 months unless your veterinarian instructs otherwise.
Here is an example of a deworming schedule for a dog that receives Proheart 12 in January:
Date
Treatment
January
Proheart 12 and intestinal dewormer
February
No treatment
March
No treatment
April
Intestinal dewormer
May
No treatment
June
No treatment
July
Intestinal dewormer
August
No treatment
September
No treatment
October
Intestinal dewormer
November
No treatment
December
No treatment
Product Examples
Every 3 months, you should administer a deworming medication to your dog. You should add flea and tick prevention to this schedule for complete parasite coverage. Some of the best deworming options for dogs on this schedule include:
Elanco Quad Dewormer for Hookworms, Roundworms, Tapeworms & Whipworms for Large Breed Dogs, Medium Breed Dogs, or Small Breed Dogs
Drontal Plus Chewable Tablet for Large Dogs, Medium Dogs, or Small Dogs & Puppies
PetArmor 7 Way Dewormer for Hookworms, Roundworms & Tapeworms for Medium & Large Breed Dogs or Small Breed Dogs
Virbantel Chewable Flavored Tablets for Medium & Large Dogs or Small Dogs
Image Credit: New Africa, Shutterstock
Monthly Heartworm Preventative Deworming Schedule
If you choose to administer heartworm prevention with a tablet, you must deworm your dog every month. You should ensure the product you use kills heartworms. For this schedule, you should be more accurate with the dates you give the tablets. Here is an example of a deworming schedule involving monthly treatments:
Date
Treatment
1st January
Monthly all-wormer
1st February
Monthly all-wormer
1st March
Monthly all-wormer
1st April
Monthly all-wormer
1st May
Monthly all-wormer
1st June
Monthly all-wormer
1st July
Monthly all-wormer
1st August
Monthly all-wormer
1st September
Monthly all-wormer
1st October
Monthly all-wormer
1st November
Monthly all-wormer
1st December
Monthly all-wormer
Product Examples
Regarding monthly dewormers that cover heartworm, you can get a product designed for this purpose only or convenient treatments that include external parasite prevention, too.
Keep in mind these products don’t always kill tapeworms, so depending on your dog’s exposure to tapeworms, you may need to use an additional product every 3 months. You could also purchase a separate product that covers external parasites. Some good products to look at include:
Simparica Trio Chewable Tablet for Dogs
NexGard PLUS Chew for Dogs
Interceptor Plus Chew for Dogs
Tri-Heart Plus Chewable Tablet for Dogs
Advantage Multi Topical Solution for Dogs
Sentinel Tablet for Dogs
Sentinel Spectrum Chew for Dogs
Trifexis Chewable Tablet for Dogs
Iverhart Plus Chewable Tablet for Dogs
Heartgard Plus Chew for Dogs
Image Credit: PromKaz, Shutterstock
Types of Worms in Dogs
Since few products cover every type of worm, it’s helpful to understand these parasites. The five main worms are:
Heartworm: Heartworms are unique parasitic worms that infect dogs through a mosquito bite. They live in the major blood vessels around the heart and lungs, as well as in the heart itself. Heartworm infection can be fatal, even with treatment, so prevention is essential.
Hookworm: Hookworms are tiny worms that latch onto the intestinal wall, feeding on blood, which can lead to anemia, especially in puppies. A dog can pick up hookworms from another dog’s poop, and puppies can be infected through their mother’s milk. While they don’t usually cause as severe problems in adult dogs, they can still lead to gastrointestinal upsets, weakness, and intestinal bleeding.
Roundworm: Roundworms are very common, and dogs can be infected through poop or by their mother, similar to hookworms. The worms are several inches long and white. They can be seen in poop and vomit and cause diarrhea and abdominal swelling.
Tapeworm: Tapeworms are transmitted to dogs by an intermediate host such as a flea, rodent, lizard, or farm animal. When the dog eats the body of an infected intermediate host, they become infected. Tapeworms release eggs in segments that look like grains of rice.
Whipworm: Whipworms are tiny worms that live in the large intestine. They spread between dogs by laying eggs which come out in the poop to be ingested by another dog. In large numbers, whipworms can cause weight loss, digestive upsets, and malnutrition.
Final Thoughts
As you can see, the ideal deworming schedule varies from dog to dog. Some products kill external parasites such as fleas and ticks in addition to worms, which can be very convenient. Read the product label carefully to know which parasites it covers, how often you must treat your dog, and the safety information.
Since it can be complicated to ensure your dog has all the necessary coverage, and heartworm prevention requires a veterinary prescription, you should talk to your vet about parasite prevention. They can also make sure you aren’t unnecessarily doubling up on parasite prevention!
Featured Image Credit: Dmitriev Mikhail, Shutterstock
The post How Often Should I Deworm My Dog? Our Vet Explains When, Timings & Schedule by Dr. Ashley Darby BVSc (Veterinarian) appeared first on Dogster. Copying over entire articles infringes on copyright laws. You may not be aware of it, but all of these articles were assigned, contracted and paid for, so they aren’t considered public domain. However, we appreciate that you like the article and would love it if you continued sharing just the first paragraph of an article, then linking out to the rest of the piece on Dogster.com.