How Often Do Dogs Need Heartworm Medicine?

by | Last updated on January 24, 2024

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Because heartworms must be eliminated before they reach this adult stage, it is extremely important that heartworm preventives be administered strictly on schedule (

monthly for oral and topical products and every 6 months or 12 months for the injectable

).

How often do dogs need heartworm pills?


Year-round prevention is best

! Talk to your dog's veterinarian to decide which preventive is best for your dog. The American Heartworm Society advocates to “Think 12.” Give dogs 12 months of and get them tested for heartworms every 12 months.

How long can a dog go without heartworm pills?

Most of the monthly heartworm medicines have a safety factor of at least

15 days

of protection if a dose is missed. This means that if you're just a week or two late, your pet is likely still within that window of protection and would be unlikely to become infected during that time.

Is it necessary to give your dog heartworm medicine?

One of the most common questions heard by our veterinarians during an annual wellness exam is, “Does my pet really need heartworm prevention?” To put it simply:

yes! Even if your pet is considered “indoors-only,” all cats and dogs should be on a heartworm prevention medication

.

Do I need to give my dog Heartgard in the winter?

As winter descends upon New England in full force, more and more dog owners ask us if we recommend continuing heartworm prevention through the winter months. The short answer is yes.

The American Heartworm Society recommends year-round heartworm prevention

, and we agree.

Do dogs need heartworm test every year?


Annual testing is necessary, even when dogs are on heartworm prevention year-round

, to ensure that the prevention program is working. Heartworm medications are highly effective, but dogs can still become infected. If you miss just one dose of a monthly medication—or give it late—it can leave your dog unprotected.

What are the first signs of heartworms in dogs?

  • Persistent cough. Unlike a regular cough or a kennel cough, which is strong and sporadic, a heartworm- related cough is dry and persistent. …
  • Lethargy. …
  • Weight loss. …
  • Difficulty breathing. …
  • Bulging ribs.

When should dogs start heartworm pills?

You should start a puppy on heartworm prevention (i.e., heartworm medicine) as soon as possible. The American Heartworm Society recommends starting a puppy on heartworm prevention

no later than eight weeks of age

.

How often do you give dogs NexGard?

NexGard is a tasty beef-flavoured chew that provides flea, tick and mite protection for dogs. NexGard protects dogs against brown dog ticks, bush ticks and the potentially deadly paralysis tick. NexGard should be given

monthly all year round

in areas where paralysis ticks are found.

Can I give my dog Heartgard every other month?

However, due to the heartworm life-cycle, it is likely that

giving the medication every 45 to 60 days

, rather than every 30 days, will allow immature heartworms to develop into adult heartworms. In other words, heartworm prevention medication is not effective when given every 45 to 60 days.

What happens if you miss a month of heartworm?

A: Give the dose you missed immediately, then continue giving the medication on the day you've always given it. If the missed dose is more than 2 weeks late,

your dog should be tested for heartworm again in six months

(click here to learn why).

Does heartworm treatment shorten a dog's life?

This treatment does not actually kill the worms, however

it does decrease their lifespan

; keep in mind, however, that the average heartworm can live six years, so shortening that lifespan could still mean your dog having a heartworm infection for four more years.

Is there a yearly heartworm medicine?


ProHeart 12 is the only FDA-approved product that prevents heartworm disease in dogs for 1 full year with just 1 shot given by your vet

. At the time of the shot, ProHeart 12 also treats hookworms. * ProHeart 12 is for use in healthy dogs 12 months of age and older.

What monthly medications do dogs need?

For dogs we recommend a monthly pill (either

Trifexis or Sentinel

) and for cats we recommend a topical medication called Revolution. These medications also prevent intestinal parasites and fleas.

Can you get heartworm medication over the counter?

Purchasing Medications Without a Prescription.

All effective heartworm medications require a prescription in the United States

. It is illegal to obtain an FDA-approved prescription medication without a prescription.

How often do you give your dog Heartgard Plus?

HEARTGARD Plus should be given at

monthly intervals

during the period of the year when mosquitoes (vectors), potentially carrying infective heartworm larvae, are active. The initial dose must be given within a month (30 days) after the dog's first exposure to mosquitoes.

Do you need to give Heartgard year round?

Therefore,

the safest recommendation is to use heartworm prevention and protect your pet year round

; and to have your pet tested every 12 months. Most heartworm products that have been approved and tested by the FDA also contain a medication for common intestinal parasites that are contracted via the environment.

How do you prevent heartworms in dogs naturally?


Reduce the frequency of vaccinations, feed your dog a healthy diet, and use antioxidants and omega-3 fatty acids to reduce inflammation and oxidation

. This will improve your dog's overall health and make it less likely that infection could develop into heartworm disease.

How much is a heartworm test for a dog?

It's recommended that all dogs be tested annually for heartworm disease, even if they are on heartworm prevention. A heartworm test may range from approximately

$35 to $75

.

Does my dog need a heartworm test every 6 months?

It takes about six months from the time is bitten by a positive mosquito until there are adult heartworms in the heart. The best thing to do would be to

continue heartworm preventative and then test the dog later, at least six months after the time that he was off the preventative

.

Can you do a heartworm test at home?


Using the WITNESS Heartworm Rapid Test is easy

. Just follow 3 simple steps. Add 1 drop of anticoagulated whole blood, serum or plasma to the sample well. Add 2 drops of chase buffer provided to the sample well.

What do heartworms look like in poop?

Adult worms

resemble spaghetti

and may come out in feces or vomit of an infected dog. Transmission to dogs is through eggs in feces, eating a prey animal that is a host (usually rodents), mother's milk, or in utero.

How does a dog act if they have heartworms?

Signs of heartworm disease may include

a mild persistent cough, reluctance to exercise, fatigue after moderate activity, decreased appetite, and weight loss

. As heartworm disease progresses, pets may develop heart failure and the appearance of a swollen belly due to excess fluid in the abdomen.

Where do dogs get heartworm?

Heartworms are transmitted

from an infected animal to your healthy dog through mosquitoes

. When an infected mosquito bites your dog, the mosquito can also pass on infective larvae. Over 6 to 7 months, these larvae develop into adult heartworms, causing severe health issues and potentially death.

Do dogs need heartworm medicine year round?

That's one reason

veterinarians often recommend that pets receive heartworm prevention medication all year long

. Although there are a fewer number of mosquitoes in the winter, there is still a risk that an animal could contract heartworms if the owner stops giving medication during this season.

How expensive is heartworm treatment?

The average cost of heartworm treatment for dogs is often

around $1,000

. However, it can range from $500 to $1,100 or even more depending mainly on the size of your dog, veterinary bills, and the stage of the disease.

Does a dog cough with heartworms?

When heartworms infiltrate the lungs and start reproducing in the lungs and in the surrounding vessels,

your dog may start to cough

. This is usually a dry, unproductive cough that can be more obvious after exercise. Sometimes dogs may have “coughing fits,” that may even cause fainting.

Emily Lee
Author
Emily Lee
Emily Lee is a freelance writer and artist based in New York City. She’s an accomplished writer with a deep passion for the arts, and brings a unique perspective to the world of entertainment. Emily has written about art, entertainment, and pop culture.