Interceptor® Flavour Tabs for Cats and Dogs

What Interceptor Is and How It Works

Interceptor® Flavour Tabs are veterinary chewable tablets that help prevent heartworm disease and control certain intestinal worms in dogs and cats. They contain milbemycin oxime, a macrocyclic lactone that targets parasite nerve and muscle function. This page explains indications, dosing basics, and how to order with US delivery from Canada. It also outlines purchasing considerations, including options if you pay without insurance.

CanadianInsulin.com is a prescription referral platform. We verify prescriptions with your prescriber when required, and licensed Canadian pharmacies dispense your order.

This medicine prevents heartworm disease by killing susceptible larval stages transmitted by mosquitoes. It also treats and controls common roundworms and hookworms, and controls whipworms in dogs. The treatment acts on parasite GABA and glutamate-gated chloride channels, which can paralyze and eliminate susceptible worms.

Milbemycin oxime tablets for dogs are part of routine parasite prevention programs. For context on disease risk and prevention timing, see our overview of Canine Heartworm Disease. For feline risk, review Feline Heartworm Disease.

Who It’s For

This medicine is labeled for dogs and cats that meet minimum age and weight per the official product insert. Veterinarians may recommend year-round prevention in endemic regions, or seasonal use based on local transmission patterns. Animals should test negative for heartworm infection before starting a preventive.

Interceptor Flavour Tabs for cats help prevent heartworm disease and control labeled intestinal worms when dosed correctly. Kittens and puppies should meet label minimums and be in good health at initiation. Dogs or cats with known hypersensitivity to milbemycin should not receive this medicine.

Use caution in herding breeds or mixed breeds with potential MDR1 gene variants, as macrocyclic lactones can cause neurologic signs at excessive exposures. Discuss pregnancy, breeding, or lactation with your veterinarian before use. If your pet has significant concurrent illness, your clinician may delay starting a preventive until stable.

Dosage and Usage

Give one tablet by mouth once monthly, on the same date each month. Administer the entire chewable; observe your pet to ensure full consumption. Tablets may be given with a small meal to reduce digestive upset in sensitive animals.

Dogs should have a current heartworm test before the first dose or when restarting after a significant gap. Interceptor Flavour Tabs for dogs are dosed by body weight according to the label. Your veterinarian will select the appropriate tablet size for safe and effective prevention, and advise whether to continue year-round based on your region.

For routine administration, set calendar reminders and align doses with monthly routines. If your pet spits out or partially chews a dose, consult your veterinarian about replacement guidance. Do not split tablets between animals.

Strengths and Forms

These are flavored, chewable oral tablets for dogs and cats. Several weight-based tablet sizes are available for each species, and selection depends on your pet’s current weight. Availability may vary by pharmacy and season.

Ask your clinician which size is appropriate now and at the next weight check, especially for growing animals. Interceptor cat tablets are designed for feline dosing needs and may differ from canine presentations.

Missed Dose and Timing

If you miss a monthly dose, give it as soon as you remember and then resume the regular monthly schedule. Do not give two doses at once. If a substantial interval has passed, your veterinarian may recommend a heartworm test before continuing prevention.

Keep doses roughly 30 days apart for ongoing coverage, and try to anchor the schedule to a date you routinely remember. If vomiting occurs within a short time of dosing, consult your veterinarian for next steps.

Storage and Travel Basics

Store tablets in the original packaging until use. Keep them in a dry location at typical room temperatures, away from moisture and direct light. Protect from children and other animals.

When you travel, carry doses in their labeled blister or carton with your prescription details. Avoid extreme heat or freezing conditions, such as a parked car. Pack extra doses and your veterinarian’s contact information in case plans change.

For broader parasite education, see our pages on Canine Intestinal Worm Infections and Feline Intestinal Worm Infections. For general pharmacy offerings, browse Pet Medications.

Pen Handling and Sharps Disposal

No pen or injector handling is required. These are chewable tablets, so sharps disposal is not applicable.

Benefits

This preventive provides once-monthly dosing for heartworm disease prevention. It also treats and controls key intestinal nematodes based on species and label. The flavored format can improve acceptance, which may support adherence in households with dosing challenges.

This medicine can be paired with a separate flea or tick product when a broader parasite plan is needed. Interceptor heartworm tablets for dogs align with established veterinary guidelines for prevention programs when used as directed.

Side Effects and Safety

Common reactions may include vomiting, diarrhea, decreased appetite, lethargy, or drooling. Some pets can experience itching or transient neurologic signs at higher-than-recommended exposures. Most events are mild and self-limited, but contact your veterinarian if symptoms persist or worsen.

Serious reactions are uncommon but may include severe neurologic signs in susceptible animals or hypersensitivity-type reactions in animals with circulating microfilariae. Testing before starting a preventive helps reduce risks associated with pre-existing infection. Report unexpected events promptly to your veterinarian.

• Digestive upset: transient vomiting or soft stool
• Low energy: mild lethargy or decreased activity
• Appetite change: reduced interest in food
• Neurologic signs: tremor or ataxia, typically rare
• Hypersalivation: more common in cats after dosing

Drug Interactions and Cautions

Tell your veterinarian about all medicines and supplements your pet receives. Use caution if combining with other macrocyclic lactones or off-label high-dose regimens. Certain drugs that inhibit P-glycoprotein may increase exposure in sensitive breeds.

Milbemycin oxime for cats tablets should be used with veterinary oversight when other antiparasitics, sedatives, or neurologically active drugs are on board. Seek veterinary advice before re-starting after a lapse. For tapeworm-specific guidance, you can review clinical context in our article Tapeworm Treatment.

What to Expect Over Time

With consistent monthly dosing, you can expect ongoing prevention of new heartworm infections. The medicine also reduces intestinal worm burdens per label, which may lessen egg shedding over time. Your veterinarian may recommend periodic fecal testing and annual heartworm testing.

Interceptor chewable for puppies should be reassessed as body weight changes. Keep growth and dose transitions aligned with veterinary guidance. If your region has high mosquito activity, your clinician may recommend continued prevention through the year.

Compare With Alternatives

For pets needing additional tapeworm coverage, your veterinarian may suggest Interceptor® Plus, which adds praziquantel. Another widely used heartworm preventive is Heartgard®, which uses ivermectin for heartworm prevention in dogs. Your clinician can help match spectrum and formulation to your pet and environment.

Pricing and Access

Canadian pricing can help lower your out-of-pocket spend. You can check current pricing and compare supply options before you place an order. For seasonal prevention plans, your veterinarian can advise the most practical quantity to request.

Looking for potential deals? See current offers on our Promotions page. We use encrypted checkout and pharmacy-grade fulfillment controls.

Availability and Substitutions

Availability can vary by strength and species. If the requested tablet size is unavailable, your veterinarian may prescribe a therapeutically equivalent alternative within the same class or a different approved preventive. We do not provide substitution without prescriber authorization.

Patient Suitability and Cost-Saving Tips

This preventive suits many healthy dogs and cats when used as directed. Pets with significant neurologic disease, severe debilitation, or known sensitivity to macrocyclic lactones may require a different plan. Testing and veterinary oversight are important for safety.

To save on costs, consider multi-month fills to reduce per-order fees, coordinate refills before travel, and set calendar alerts for monthly dosing. Keep your prescription current to avoid gaps and extra clinic visits. If your pet outgrows a tablet size, ask your veterinarian to update the prescription at the next weigh-in.

Questions to Ask Your Clinician

• Is year-round prevention recommended where we live?
• Which tablet size fits my pet’s current weight?
• Do I need a heartworm test before starting or restarting?
• Should I pair this with a flea or tick product?
• What signs should prompt a call after dosing?
• How should I handle a missed or vomited dose?
• Are there breed-related sensitivities I should know?

Authoritative Sources

For detailed product labeling, see the manufacturer’s site; the Elanco product information page provides official indications. You can also review the FDA DailyMed listing for veterinary milbemycin oxime for label-based details. Health Canada maintains the Drug Product Database with veterinary entries for additional reference.

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

Ready to proceed? You can place your order with prompt, express, cold-chain shipping and temperature-controlled handling when required.