Interceptor Plus® Chewable Tablets for Dogs

This chewable dewormer prevents heartworm disease and treats common intestinal worms in dogs. It combines a macrocyclic lactone and a cestocide to cover multiple parasites. This page explains how it works, who it fits, and how to use it safely.

What Interceptor Plus Is and How It Works

Interceptor Plus® is a monthly oral preventative for dogs. It helps prevent heartworm disease and treats roundworms, hookworms, whipworms, and tapeworms. CanadianInsulin.com is a prescription referral platform. We verify prescriptions with your prescriber when required, and licensed Canadian pharmacies dispense your order. Order with confidence for US delivery from Canada and compare options without insurance.

The treatment contains milbemycin oxime, which targets heartworm larvae and certain intestinal nematodes, and praziquantel, which targets tapeworms. Together, these agents interrupt parasite life cycles within labeled indications. For more on conditions it helps prevent and treat, see Canine Heartworm Disease and Intestinal Worm Infections.

Who It’s For

This medicine is for dogs and puppies at least 6 weeks old. Typical minimum body weight is 2 pounds; consult the label for exact eligibility. Use interceptor plus for dogs only with a valid veterinary prescription. Dogs with known hypersensitivity to product components should avoid it.

Discuss use with a veterinarian if the dog is pregnant, lactating, or used for breeding. Puppies transitioning from other heartworm preventatives may require a test before starting.

Dosage and Usage

Give one chewable by mouth once monthly, year-round or as directed. Offer with or without food, but ensure the full dose is consumed. If splitting doses by weight band is unclear, use the tablet size that matches the dog’s current weight range. Do not exceed the labeled frequency.

Administer each month on the same calendar date, or use a reminder system to maintain adherence. An annual heartworm test may be recommended by your veterinarian. This product supports interceptor heartworm prevention with a schedule that aligns to parasite life cycles.

Strengths and Forms

The product is available as palatable chewable tablets, supplied in monthly single doses per weight band. Multiple color-coded sizes correspond to dog weight ranges such as small, medium, large, and extra-large dogs.

• Chewable tablets for oral use, one dose per month
• Weight-banded packs for small to extra-large dogs
• Variety packs may be available depending on stock

<p/Common availability can include options for dogs 8.1–25 lbs, 25.1–50 lbs, and 50.1–100 lbs; availability may vary. Ask your veterinarian which pack fits current weight and growth stage. Owners often compare interceptor plus sizes when selecting the appropriate box.

Missed Dose and Timing

If a monthly dose is missed, give it as soon as you remember. Resume the regular monthly schedule thereafter. If a significant lapse occurs, your veterinarian may recommend a heartworm test before restarting preventative therapy.

Avoid doubling up on doses. Keep a consistent schedule to maintain protection. If vomiting occurs within a short period after dosing, contact your veterinarian for guidance.

Storage and Travel Basics

Store chewables in the original blister or carton at typical room temperature. Protect from moisture and excessive heat. Keep out of reach of children and other animals.

When traveling, pack doses in original packaging with your pet’s prescription details. If you travel by air, carry the medication in your hand luggage with a copy of the prescription. Use child-safe storage at your destination. The product is shelf-stable; pharmacies use temperature-controlled handling when required.

Do not use past the expiration date on the carton. Dispose of damaged or contaminated tablets according to local guidance.

Benefits

This treatment simplifies parasite control with one monthly chew. It prevents heartworm disease and treats several intestinal worm species in dogs. The chewable format is convenient for most dogs and may be given with food.

Covering nematodes and tapeworms in one product can reduce the need for separate dewormers. Regular administration supports clinic-recommended prevention plans, especially in heartworm-endemic areas.

Side Effects and Safety

• Digestive upset: vomiting, diarrhea, decreased appetite
• Neurologic signs: lethargy, ataxia, tremors (rare)
• Skin reactions: pruritus, hives, or facial swelling
• Behavior changes: restlessness or drooling

Serious reactions are uncommon but may include severe allergic response or neurologic events. Dogs infected with adult heartworms can experience complications if started on preventatives without veterinary oversight. Seek urgent care for facial swelling, breathing difficulty, collapse, or persistent neurologic signs.

Drug Interactions and Cautions

Use caution with other macrocyclic lactones or drugs that may lower seizure threshold. Discuss all flea, tick, and deworming products currently used. Certain herding breeds can have sensitivity to high-dose macrocyclic lactones; the labeled heartworm-preventive dose is distinct, but veterinary guidance is advisable.

Do not administer to cats or other species. If your dog has a history of seizures, neurologic disease, or significant illness, consult a veterinarian before use.

What to Expect Over Time

With consistent monthly dosing, prevention extends through the heartworm transmission season and beyond. Treated intestinal parasites may pass or be digested; visible worms are not always observed. Stool checks may still be recommended based on risk.

Long-term control works best when combined with flea control, environmental hygiene, and routine veterinary exams. Keep a dosing calendar and set phone reminders to avoid gaps in protection.

Compare With Alternatives

Some owners compare heartgard plus v interceptor plus when choosing a monthly preventative. Heartgard focuses on heartworm prevention and certain intestinal nematodes. Milbemax contains milbemycin oxime with praziquantel, similar in spectrum to this medicine. Selection depends on parasite risk, dog size, and veterinary advice.

Pricing and Access

Canadian pricing with US shipping from Canada helps many pet owners manage preventive care. You can view pack options, compare monthly costs, and request an interceptor plus 12 month supply if the prescription permits. Prices vary by weight band and pack count.

Looking for deals? See current offers on Promotions when available. For broader shopping, browse Pet Medications to compare related preventatives.

Availability and Substitutions

Stock can vary by size and pack count. If a specific chew is unavailable, a prescriber may recommend a comparable alternative within the same class or with a similar spectrum. Ingredient information is available on-pack if you need to verify ingredients in interceptor plus.

Do not substitute sizes across different weight bands without veterinary direction. Always follow the prescription written for your dog.

Patient Suitability and Cost-Saving Tips

Good candidates are healthy dogs in heartworm-risk areas and those needing broad intestinal worm control. Dogs with significant neurologic histories or severe systemic illness may need alternative plans. Puppies require weight checks to ensure the correct band.

Cost-saving options include multi-month supplies when allowed by prescription, aligning refills with preventive care visits, and using reminder tools to avoid missed doses. Combining parasite prevention with routine testing can help prioritize necessary products over redundant therapies.

Questions to Ask Your Clinician

• Right spectrum: Does this medicine fit my dog’s parasite risks?
• Testing plan: Do we need a heartworm test before starting?
• Weight changes: Which size fits current and expected weight?
• Concurrent products: Can I give it with my flea and tick control?
• Side effect plan: What signs require urgent attention?
• Year-round use: Should dosing continue through winter locally?

Authoritative Sources

For official product details and safety information, see the manufacturer’s site: Elanco Interceptor Plus product overview and resources.

For regulatory listings and labels, see FDA’s database: FDA Animal Drugs database for approved veterinary medications.

For Canadian regulatory information, consult Health Canada’s database: Health Canada Drug Product Database access and search.

Medical disclaimer: This content is for informational purposes only and is not a substitute for professional medical advice.

Ready to proceed? Order from CanadianInsulin with temperature-controlled handling when required and discreet fulfillment.