Interceptor Plus is a popular preventive medication that combines two active ingredients, milbemycin oxime and praziquantel, to kill heartworm larvae, adult hookworms, roundworms, whipworms, and tapeworms. However, like any drug, Interceptor Plus can also cause side effects. In this article, we will discuss the most common Interceptor Plus side effects, their potential causes and consequences, and some tips on how to manage them.
The following is a list of the most common Interceptor Plus side effects reported by dog owners and veterinarians:
Vomiting
Diarrhea
Lethargy
Lack of appetite
Itching or rash
Tremors or seizures
Difficulty breathing or swallowing
Weakness or collapse
Pale gums or mucous membranes
Increased thirst or urination
These symptoms may occur singly or in combination, and they may vary in severity and duration depending on the dose, the dog’s age, size, breed, health status, and other factors. Some side effects may appear shortly after the medication is given, while others may take days or weeks to manifest. In rare cases, Interceptor Plus may cause anaphylactic shock, a life-threatening allergic reaction that requires immediate emergency care.
Causes and Consequences of Interceptor Plus Side Effects
The main reason why Interceptor Plus can cause side effects is that it works by disrupting the nervous system of parasites. While this is beneficial for killing the worms and preventing their reproduction, it can also affect the nervous system of the dog if the dosage is too high or if the dog has an underlying condition that makes it more susceptible to adverse reactions.
For example, dogs with liver or kidney disease may have impaired drug metabolism and elimination, which can lead to drug accumulation and toxicity. Similarly, puppies or senior dogs may have a weaker immune system or lower tolerance to drugs, which can make them more vulnerable to side effects.
The consequences of Interceptor Plus side effects can range from mild discomfort and temporary inconvenience to serious health problems and even death.
Vomiting and diarrhea, for instance, can cause dehydration, electrolyte imbalances, and nutrient deficiencies if left untreated or if they occur frequently or severely.
Lethargy and lack of appetite may indicate anemia, hypoglycemia, or other metabolic disorders.
Itching or rash may be a sign of an allergic reaction or a skin infection.
Tremors or seizures can indicate neurological damage or toxicity.
Difficulty breathing or swallowing can be a sign of airway obstruction or inflammation.
Weakness or collapse can be a sign of cardiovascular or respiratory failure.
Pale gums or mucous membranes can be a sign of anemia, shock, or hypoxia.
Increased thirst or urination can be a sign of kidney or bladder problems.
Tips on Managing Interceptor Plus Side Effects
If your dog experiences any of the Interceptor Plus side effects listed above, it’s important to contact your veterinarian as soon as possible. Depending on the severity and duration of the symptoms, your vet may recommend different treatments or interventions.
Stopping the medication: If your dog has a mild or moderate reaction to Interceptor Plus, your vet may advise you to skip the next dose or switch to a different heartworm preventive medication. This can help reduce the risk of further side effects and allow your dog’s body to recover from the drug. However, if your dog has a severe or life-threatening reaction, your vet may need to administer emergency treatments such as oxygen therapy, fluid therapy, antihistamines, or corticosteroids. In some cases, hospitalization or intensive care may be necessary.
Monitoring your dog’s condition: Even if your dog’s side effects are mild or resolved quickly, it’s important to keep an eye on your dog’s behavior, appetite, and bowel movements for a few days after the medication. This can help you detect any potential complications or recurrence of symptoms and report them to your vet in a timely manner.
Providing supportive care: To help your dog recover from Interceptor Plus side effects, you can provide some supportive care at home, such as offering small and frequent meals of bland food (e.g., boiled chicken and rice), providing fresh and clean water, keeping your dog hydrated, giving probiotics or digestive enzymes to promote gut health, and avoiding strenuous activities or exposure to extreme temperatures.
Preventing future side effects: To minimize the risk of Interceptor Plus side effects in the future, you can take some preventive measures, such as following the dosing instructions carefully, administering the medication with food, using the correct size and type of tablet for your dog’s weight and age, avoiding drug interactions with other medications or supplements, and discussing your dog’s medical history and current health status with your vet before starting or changing the medication.
FAQs about side effects of Interceptor Plus
We will be addressing some frequently asked questions about the side effects of Interceptor Plus.
Interceptor Plus is a monthly oral medication for dogs that is designed to prevent heartworm disease, as well as treat and control common intestinal parasites such as roundworms, hookworms, whipworms, and tapeworms.
What are the potential side effects of Interceptor Plus?
The most common side effects of Interceptor Plus are vomiting, diarrhea, and decreased appetite. These side effects are typically mild and transient, meaning they will go away on their own within a few days.
Are there any serious side effects of Interceptor Plus?
While rare, there are some potential serious side effects of Interceptor Plus, such as seizures, ataxia (loss of coordination), and anaphylaxis (a severe allergic reaction). If you notice any of these symptoms in your dog after giving them Interceptor Plus, seek veterinary care immediately.
Can Interceptor Plus cause an allergic reaction?
Yes, Interceptor Plus can cause an allergic reaction in some dogs. Signs of an allergic reaction include swelling of the face, lips, or tongue, difficulty breathing, and hives. If your dog experiences any of these symptoms, seek emergency veterinary care right away.
Can Interceptor Plus be given to all dogs?
Interceptor Plus is generally safe for use in most dogs, but there are some exceptions. Dogs who are less than 6 weeks old or weigh less than 2 pounds should not be given Interceptor Plus. Additionally, dogs with certain medical conditions or who are taking certain medications may not be able to safely take Interceptor Plus. Always consult with your veterinarian before giving your dog any medication.
How can I minimize the risk of side effects when giving my dog Interceptor Plus?
To minimize the risk of side effects, always follow the dosing instructions provided by your veterinarian. Additionally, be sure to give the medication with a full meal, as this can help reduce the incidence of vomiting and diarrhea. If your dog does experience any side effects, be sure to monitor them closely and contact your veterinarian if the symptoms persist or worsen.
What should I do if my dog vomits after taking Interceptor Plus?
Vomiting is a common side effect of Interceptor Plus, but it is usually mild and transient. If your dog vomits within an hour of taking the medication, give them another dose. If they continue to vomit or refuse to eat, contact your veterinarian.
Can Interceptor Plus be given to pregnant or nursing dogs?
The safety of Interceptor Plus in pregnant or nursing dogs has not been fully established, so it is best to avoid giving this medication to pregnant or nursing dogs unless specifically directed by your veterinarian.
Can Interceptor Plus interact with other medications my dog is taking?
There are some medications that can interact with Interceptor Plus, such as certain antibiotics and anticonvulsants. Always inform your veterinarian of any medications your dog is taking before giving them Interceptor Plus.
How long does it take for Interceptor Plus to start working?
Interceptor Plus begins working immediately after it is given, but it may take a few hours for the medication to fully take effect. It is important to give Interceptor Plus to your dog every month to maintain protection against heartworm disease and intestinal parasites.
Yes, Interceptor Plus is safe for all breeds of dogs, as long as they meet the weight and age requirements and do not have any medical conditions or take any medications that would prevent them from safely taking this medication.
How often should I give Interceptor Plus to my dog?
Interceptor Plus should be given to your dog once a month, ideally on the same day each month. Be sure to follow the dosing instructions provided by your veterinarian.
Can Interceptor Plus cause lethargy or weakness in dogs?
Yes, lethargy and weakness are potential side effects of Interceptor Plus, although they are less common than vomiting and diarrhea. If your dog appears excessively lethargic or weak after taking Interceptor Plus, contact your veterinarian.
What should I do if my dog experiences an adverse reaction to Interceptor Plus?
If your dog experiences an adverse reaction to Interceptor Plus, such as seizures, ataxia, or anaphylaxis, seek veterinary care immediately. It is important to act quickly to ensure your dog receives prompt and appropriate treatment.
Are there any long-term side effects of Interceptor Plus?
There are no known long-term side effects of Interceptor Plus, but as with any medication, there is always a risk of adverse reactions. It is important to monitor your dog closely after giving them Interceptor Plus and contact your veterinarian if you notice any concerning symptoms.
How can I tell if my dog is having an allergic reaction to Interceptor Plus?
Signs of an allergic reaction to Interceptor Plus include swelling of the face, lips, or tongue, difficulty breathing, and hives. If your dog experiences any of these symptoms, seek emergency veterinary care right away.
Is it safe to give Interceptor Plus to senior dogs?
Yes, Interceptor Plus is safe for use in senior dogs, as long as they meet the weight and age requirements and do not have any medical conditions or take any medications that would prevent them from safely taking this medication.
Can Interceptor Plus be given to dogs with sensitive stomachs?
Yes, Interceptor Plus can be given to dogs with sensitive stomachs, but it is important to give the medication with a full meal to help reduce the risk of vomiting and diarrhea. If your dog experiences any gastrointestinal side effects, contact your veterinarian.
Hannah Elizabeth is an English animal behavior author, having written for several online publications. With a degree in Animal Behaviour and over a decade of practical animal husbandry experience, Hannah's articles cover everything from pet care to wildlife conservation. When she isn't creating content for blog posts, Hannah enjoys long walks with her Rottweiler cross Senna, reading fantasy novels and breeding aquarium shrimp.
