Keeping your dog healthy involves more than just regular walks and a balanced diet. One of the most critical aspects of canine health is protection against parasites that can cause severe, life-threatening conditions. Heartgard Plus is a widely recognized and trusted medication designed to prevent heartworm disease while also treating and controlling common intestinal parasites like hookworms and roundworms. This monthly chewable treatment has become a staple for pet owners looking for a reliable way to safeguard their companions.
Understanding Heartgard Plus and Its Benefits
Heartgard Plus is a prescription medication that comes in a beef-flavored chewable tablet. Most dogs find it palatable, making it easy for owners to administer without the struggle often associated with pills. The medication contains two primary active ingredients: ivermectin and pyrantel. These ingredients work together to provide a broad spectrum of protection against internal parasites.
The primary function of this medication is to prevent heartworm disease, which is transmitted through the bite of an infected mosquito. When a mosquito bites a dog, it can transfer heartworm larvae into the dog’s bloodstream. Without intervention, these larvae eventually migrate to the heart and lungs, where they grow into adult worms, causing significant damage to the cardiovascular system. Heartgard Plus works by eliminating the tissue stages of heartworm larvae before they can develop into adults.
The Role of Ivermectin and Pyrantel
Ivermectin is the component responsible for preventing heartworms. It is effective at killing the larvae that have entered the dog’s system within the previous 30 days. This is why the medication is administered on a monthly basis; it essentially clears out any potential infections acquired during the month.
Pyrantel, the second active ingredient, targets intestinal parasites. Specifically, it treats and controls two species of hookworms and two species of roundworms. These parasites are common in dogs and can cause symptoms like weight loss, diarrhea, and anemia. By including pyrantel, the medication offers a more comprehensive health solution than heartworm-only preventatives.
The Importance of Heartworm Prevention
Heartworm disease is a serious and potentially fatal condition that has been reported in all 50 states. Because mosquitoes are the primary vector, any dog that spends time outdoors or lives in an area where mosquitoes are present is at risk. While treatment for an existing heartworm infection exists, it is expensive, physically taxing on the dog, and requires months of restricted activity.
Prevention is always the safer and more cost-effective choice. A monthly dose of a preventative like Heartgard Plus ensures that the larvae never have the chance to mature. This proactive approach saves the dog from the physical toll of the disease and saves the owner from the high costs and emotional stress of intensive medical treatment.
How to Administer Heartgard Plus
One of the reasons this medication is so popular is its ease of use. Most dogs accept the chewable as a treat. However, there are a few important steps to ensure the medication is effective:
- Check the Dosage: The medication is packaged based on the dog’s weight. Ensure you have the correct size for your pet (Small, Medium, or Large).
- Observe Consumption: Make sure your dog chews the tablet rather than swallowing it whole. If your dog tends to swallow treats quickly, you can break the chewable into smaller pieces.
- Verify Full Ingestion: Watch your dog for a few minutes after administration to ensure they don’t spit it out or vomit. If the dose is lost, consult your veterinarian about redosing.
- Maintain a Schedule: Give the medication on the same day every month. Consistency is key to maintaining a protective level of the drug in the dog’s system.
The Necessity of a Prescription and Testing
You cannot purchase Heartgard Plus without a prescription from a licensed veterinarian. This requirement is in place for the safety of your pet. Before starting any heartworm preventative, your dog must be tested for an existing heartworm infection. This is usually done through a simple blood test at the vet’s office.
Testing is vital because giving a heartworm preventative to a dog that already has adult heartworms can cause a dangerous reaction. When the preventative kills a large number of larvae (microfilariae) in a heartworm-positive dog all at once, it can lead to a shock-like state. Furthermore, the preventative does not kill adult heartworms, so a positive dog would still require a different, more intensive treatment plan.
Annual Testing Requirements
Even if your dog is on a year-round preventative, most veterinarians recommend annual heartworm testing. This ensures that the medication is working as intended and that no doses were missed or ineffective (for example, if the dog vomited the dose without the owner noticing). Annual tests provide peace of mind and a safety net for your dog’s health.
Potential Side Effects and Safety Considerations
Heartgard Plus is generally considered safe for most dogs when used as directed. However, like any medication, there is a possibility of side effects. Common side effects, though rare, may include:
- Vomiting or diarrhea
- Lethargy or sluggishness
- Loss of appetite
- Lack of coordination
If you notice any unusual behavior or physical symptoms after giving your dog the medication, contact your veterinarian immediately. It is also important to note that certain herding breeds, such as Collies, Aussies, and Whippets, can have a genetic sensitivity to ivermectin (the MDR1 mutation). However, the dose of ivermectin in Heartgard Plus is typically low enough to be safe for these breeds, but you should always discuss this with your vet first.
Where to Buy Heartgard Plus
Once you have a valid prescription, you have several options for purchasing the medication. Many owners choose to buy directly from their veterinarian’s office for convenience and to ensure the product’s authenticity. Buying from a vet often allows you to take advantage of manufacturer rebates that may not be available elsewhere.
Alternatively, you can use reputable online pharmacies. If you choose this route, look for pharmacies that are certified by the National Association of Boards of Pharmacy (NABP). This ensures you are receiving genuine medication rather than a counterfeit or expired product. Be wary of websites that offer the medication without a prescription, as these are often operating illegally and may sell unsafe products.
Frequently Asked Questions
Can I give Heartgard Plus to puppies?
Yes, Heartgard Plus is safe for puppies as young as six weeks of age. There is no weight minimum, but you must ensure you are using the correct dosage for their current weight. Since puppies grow quickly, you should weigh them before each monthly dose to ensure they haven’t moved into a higher weight bracket.
What should I do if I miss a dose?
If you forget to give the medication on its scheduled day, give it as soon as you remember. Then, resume your regular monthly schedule. If you have missed more than two doses, it is highly recommended to contact your veterinarian. They may suggest a heartworm test in six months to ensure no infection occurred during the unprotected period.
Does it protect against fleas and ticks?
No, Heartgard Plus is specifically formulated for heartworms and certain intestinal worms. It does not provide protection against fleas or ticks. Many pet owners pair this medication with a separate flea and tick preventative to ensure full external and internal protection.
Conclusion
Protecting your dog from heartworms and intestinal parasites is a fundamental part of responsible pet ownership. Heartgard Plus offers a simple, effective, and tasty solution to prevent serious health complications. By maintaining a consistent monthly schedule and working closely with your veterinarian for annual testing, you can ensure your dog stays healthy and active for years to come. If you are ready to start your dog on a preventative program, the best first step is to schedule a heartworm test with your local vet. Taking action today provides the protection your pet deserves and the peace of mind you need as a dog owner.