ProHeart 12 Dosing Chart
All dogs should be dosed at 0.023 mL suspension per pound of body weight.

Dog’s weight (lbs) | ProHeart 12 dose (ml/dog) |
---|---|
11 lbs | 0.25 ml |
22 lbs | 0.5 ml |
33 lbs | 0.75 ml |
44 lbs | 1 ml |
55 lbs | 1.25 ml |
66 lbs | 1.5 ml |
77 lbs | 1.75 ml |
88 lbs | 2 ml |
99 lbs | 2.25 ml |
110 lbs | 2.5 ml |
121 lbs | 2.75 ml |
132 lbs | 3 ml |

ProHeart for dogs reviews
ProHeart 6 and ProHeart 12 are veterinary drugs that are used to prevent heartworm infection in dogs. They are both administered as an injection by a veterinarian and provide protection for six and twelve months, respectively.
Pros:
Long-lasting protection against heartworm infection
Convenient administration (only one injection per year)
Can be used in dogs of all sizes and breeds
Cons:
Some dogs may experience side effects such as pain or swelling at the injection site, loss of appetite, vomiting, or diarrhea
There have been rare reports of severe reactions, including death, in some dogs
Can be more expensive than monthly preventatives
Side effects:
Some dogs may experience pain or swelling at the injection site, loss of appetite, vomiting, or diarrhea
In rare cases, severe reactions such as anaphylaxis (a severe allergic reaction) have been reported
Toxicity:
ProHeart 6 and ProHeart 12 are generally considered safe when used as directed by a veterinarian
However, in rare cases, severe reactions such as anaphylaxis (a severe allergic reaction) have been reported
Drug interactions:
ProHeart 6 and ProHeart 12 should not be used in dogs that are currently infected with heartworm or that have a history of heartworm infection
ProHeart 6 and ProHeart 12 should also not be used in dogs that are currently taking other heartworm preventatives or that have had a recent dose of a heartworm preventative
Contraindications:
ProHeart 6 and ProHeart 12 should not be used in dogs that are currently infected with heartworm or that have a history of heartworm infection
ProHeart 6 and ProHeart 12 should also not be used in dogs that are currently taking other heartworm preventatives or that have had a recent dose of a heartworm preventative
Research and studies:
ProHeart 6 and ProHeart 12 have been extensively studied and have been found to be safe and effective in preventing heartworm infection in dogs when used as directed by a veterinarian.
The safety and efficacy of ProHeart 6 and ProHeart 12 have been studied in a number of clinical trials involving thousands of dogs.
In summary, ProHeart 6 and ProHeart 12 are veterinary drugs that are used to prevent heartworm infection in dogs. They are both administered as an injection by a veterinarian and provide protection for six and twelve months, respectively. They are generally considered safe when used as directed by a veterinarian, but in rare cases, severe reactions have been reported. It’s important to consult with a veterinarian before using these drugs since they have some contraindications and drug interactions.
What happens if you give a dog too much ProHeart?
Here are a few potential side effects that may occur if a dog is given too much ProHeart:
- Neurological symptoms: These may include tremors, seizures, and loss of coordination.
- Gastrointestinal symptoms: These may include vomiting, diarrhea, and loss of appetite.
- Respiratory symptoms: These may include difficulty breathing and coughing.
- Anemia: ProHeart can cause a decrease in red blood cells, which can lead to anemia.
- Death: Overdose of ProHeart can lead to death.
It is important to always follow the dosage instructions provided by your veterinarian and not to administer ProHeart without consulting a veterinarian. If you suspect your dog has been given too much ProHeart or is showing any of these symptoms, contact your veterinarian immediately.
ProHeart vs Heartgard
ProHeart and Heartgard are both veterinary medications used to prevent heartworm disease in dogs. Both medications are considered to be highly effective at preventing heartworm infection, but there are some key differences between the two that may make one a better choice for your pet.
ProHeart is an injectable medication that is administered by a veterinarian. It is a slow-release formula that is designed to last for 6 or 12 months. This means that your dog only needs to receive the medication twice a year, making it a more convenient option for pet owners. ProHeart is also considered to be highly effective at preventing heartworm infection, with a reported efficacy rate of 99.9%.
Heartgard, on the other hand, is a chewable tablet that is given to dogs once a month. While this medication is also highly effective at preventing heartworm infection, it does require more frequent dosing than ProHeart. Additionally, some dogs may not like the taste of chewable tablets, which can make it difficult to administer.
When it comes to side effects, both ProHeart and Heartgard have been known to cause some mild side effects in some dogs. These can include vomiting, diarrhea, and loss of appetite. However, these side effects are generally considered to be rare and are usually not serious.
In terms of cost, ProHeart is generally more expensive than Heartgard. However, the cost of the medication can vary depending on the size of your dog and the dosage required.
Overall, both ProHeart and Heartgard are highly effective at preventing heartworm infection in dogs. The choice between the two will likely come down to personal preference and the specific needs of your pet. If you are looking for a more convenient option that requires less frequent dosing, ProHeart may be the better choice. However, if your dog prefers chewable tablets or if cost is a concern, Heartgard may be a better option. It is always recommended to consult with your veterinarian to determine the best option for your pet.
Does ProHeart cover intestinal parasites?
ProHeart does not cover intestinal parasites. Intestinal parasites are common in dogs and can cause a variety of health problems, including diarrhea, vomiting, weight loss, and anemia. These parasites can also be transmitted to humans, making it important to take preventative measures to protect both the dog and the owner.
To protect your dog from intestinal parasites, it is recommended to use a monthly dewormer in addition to ProHeart. These dewormers are available in various forms such as tablets, chewables, and topical treatments. It is also important to regularly check your dog’s feces for signs of worms and to have your veterinarian perform a fecal exam at least once a year.
Additionally, practicing good hygiene and sanitation measures can also help prevent the spread of intestinal parasites. This includes regularly cleaning and disinfecting your dog’s living areas, keeping your yard free of feces, and washing your hands after handling your dog or their feces.
In summary, while ProHeart provides protection against heartworm disease, it does not cover intestinal parasites. It is important to use a monthly dewormer and practice good hygiene and sanitation measures to protect your dog from these types of parasites. Regular check-ups with your veterinarian and fecal exams are also recommended to ensure your dog is free of intestinal parasites.
FAQs about Proheart for dogs
Here’s a list of FAQs about Proheart for dogs and everything you need to know about it.
What is Proheart for dogs?
Proheart is a medication that is used to prevent heartworm disease in dogs. It is given as an injection and can protect your dog against heartworms for up to 12 months.
How does Proheart work?
Proheart works by killing the larvae of heartworms that are transmitted to your dog through mosquito bites. This medication contains an active ingredient called moxidectin, which prevents the heartworm larvae from developing into adult heartworms.
Is Proheart safe for dogs?
Proheart is generally safe for most dogs. However, it is important to make sure that your dog is healthy enough to receive the medication. Your veterinarian will perform a physical exam and may recommend blood tests to ensure that your dog is a good candidate for Proheart.
Are there any side effects of Proheart?
Like any medication, Proheart can cause side effects. Some of the most common side effects include vomiting, diarrhea, lethargy, and a decreased appetite. However, these side effects are usually mild and resolve on their own within a few days.
How often does my dog need to receive Proheart?
Proheart is given as an injection every 6 or 12 months. It is important to stick to the recommended dosing schedule to ensure that your dog is protected against heartworms.
Can Proheart be used in conjunction with other medications?
Proheart can be used in conjunction with other medications, but it is important to let your veterinarian know about any other medications that your dog is taking. Some medications may interact with Proheart and could potentially cause adverse effects.
How long does it take for Proheart to start working?
Proheart starts working immediately after it is injected into your dog. However, it is important to note that it does not provide immediate protection against heartworms. It takes several weeks for the medication to fully prevent heartworm disease.
Is Proheart expensive?
The cost of Proheart can vary depending on a number of factors, including your location, the size of your dog, and the veterinarian you visit. However, many pet owners find that the cost of Proheart is worth the peace of mind that comes with protecting their dog against heartworm disease.
How is Proheart administered?
Proheart is administered as an injection by a licensed veterinarian. The injection is given under the skin in the area between the dog’s shoulder blades. The injection is usually quick and relatively painless, and most dogs tolerate it well.
Is Proheart only for dogs with heartworm disease?
No, Proheart is actually used to prevent heartworm disease in dogs, not to treat it. It is important to start your dog on a heartworm prevention program as early as possible, ideally when they are puppies, to ensure they are protected against heartworm disease.
What happens if my dog misses a dose of Proheart?
If your dog misses a dose of Proheart, it is important to contact your veterinarian as soon as possible to schedule another injection. Missing a dose could increase your dog’s risk of developing heartworm disease.
Can Proheart be used in all breeds of dogs?
Proheart is generally safe for use in most breeds of dogs. However, some breeds may be more sensitive to the medication than others. Your veterinarian will be able to determine if your dog is a good candidate for Proheart based on their medical history and any pre-existing conditions.
What should I do if my dog experiences side effects from Proheart?
If your dog experiences any side effects from Proheart, it is important to contact your veterinarian right away. In some cases, your veterinarian may recommend additional treatment or monitoring to ensure that your dog is healthy and safe.
How effective is Proheart at preventing heartworm disease?
Proheart is a highly effective medication for preventing heartworm disease in dogs. Studies have shown that it can prevent heartworm disease in up to 99% of cases, making it an important tool for protecting your dog’s health and well-being.
Can I give Proheart to my dog myself at home?
No, Proheart should only be administered by a licensed veterinarian. This is to ensure that the medication is given safely and correctly, and to minimize the risk of any adverse effects.
What should I do if I have more questions about Proheart for dogs?
If you have additional questions or concerns about Proheart for dogs, the best thing to do is to talk to your veterinarian. They will be able to provide you with more information about the medication and help you make the best decisions for your dog’s health and well-being.
How long does Proheart stay in a dog’s system?
After a Proheart injection, the medication can stay in a dog’s system for up to 6 or 12 months. This is why the medication is given every 6 or 12 months to ensure continuous protection against heartworm disease.
Is Proheart safe for pregnant or nursing dogs?
Proheart has not been specifically tested in pregnant or nursing dogs, so it is not recommended for use in these animals. If you have a pregnant or nursing dog, it is important to talk to your veterinarian about alternative heartworm prevention options.
Can Proheart be used in dogs with pre-existing medical conditions?
It depends on the specific medical condition and the severity of the condition. Your veterinarian will be able to determine if Proheart is safe for your dog based on their medical history and any pre-existing conditions.
What is the difference between Proheart and other heartworm prevention medications?
Proheart is unique in that it is an injectable medication that only needs to be given every 6 or 12 months. Other heartworm prevention medications, such as oral tablets, are typically given once a month. The choice between different heartworm prevention medications will depend on a variety of factors, including your dog’s health, lifestyle, and personal preferences.
Can my dog still get heartworm disease if they are on Proheart?
While Proheart is highly effective at preventing heartworm disease, it is still possible for your dog to become infected with heartworms. This is why it is important to keep up with regular checkups and testing to ensure that your dog remains healthy.
How long does it take for Proheart to be fully effective?
It takes several weeks for Proheart to fully prevent heartworm disease. It is important to start your dog on a heartworm prevention program as early as possible to ensure that they are protected against heartworm disease.
What happens if my dog gets heartworm disease while on Proheart?
If your dog is on Proheart and still gets heartworm disease, your veterinarian will recommend a treatment plan based on the severity of the disease. It is important to follow your veterinarian’s recommendations closely to ensure that your dog makes a full recovery.
Is Proheart suitable for all life stages of dogs?
Proheart is suitable for most life stages of dogs, including puppies as young as six months old. However, it is important to talk to your veterinarian to ensure that your dog is healthy enough to receive the medication. Your veterinarian may recommend blood tests or other diagnostic tests to determine your dog’s health status.