Interceptor® Flavour Tabs for Cats and Dogs

Interceptor® Flavour Tabs help prevent heartworm disease and control common intestinal worms in cats and dogs. This page explains what it treats, how to use it, and how to order from Canada with US delivery. You can order without insurance.

CanadianInsulin is a prescription referral service. We verify your prescription with your clinic, and licensed Canadian pharmacies dispense your order.

What Interceptor® Is and How It Works

Interceptor® contains milbemycin oxime, a veterinary antiparasitic in the macrocyclic lactone class. When given monthly, it prevents heartworm disease by killing developing heartworm larvae transmitted by mosquitoes. It also treats and controls common intestinal worms, including roundworms, hookworms, and in dogs, whipworms. It does not treat fleas or ticks.

These chewable flavor tabs are given by mouth once a month. With Canadian pricing and shipment to the US, many pet owners choose this option for ongoing parasite prevention.

Who Interceptor® Is For

Interceptor is used for healthy dogs and puppies and for healthy cats and kittens as directed by the label and your veterinarian. It prevents heartworm disease and treats certain intestinal worm infections. Pet weight determines the tablet strength. Your veterinarian will select the correct weight band.

Do not give Interceptor to pets that are ill, underweight, or known to be allergic to milbemycin oxime. Pets should be tested for heartworm infection before starting prevention. For specific worm-only treatment needs, your veterinarian may suggest targeted dewormers such as Panacur® Granule Single.

Dosage and Usage

Give one flavor tab by mouth once every month, year-round or during mosquito season as advised by your veterinarian. Start prevention within one month after your pet’s first potential mosquito exposure. Continue through the season and for at least one month after the last exposure. Follow the weight-based dosing chart on the package. Do not split tablets.

Offer the chew as a treat or with a small meal. Ensure your pet swallows the full dose. If your veterinarian switches your pet from another heartworm preventive, give the first Interceptor dose on the date the previous product was due. Always follow the official label and your clinician’s instructions.

Strengths and Forms

Interceptor Flavour Tabs are chewable tablets available in multiple weight-band strengths for dogs and for cats. Color-coded packs help match the correct size to your pet’s body weight. Typical presentations include:

• Dogs: weight-banded chewable tabs from small to extra-large dogs
• Cats: weight-banded chewable tabs for small and larger cats
• Common retail packs: multi-month cartons; availability may vary

Specific strengths and pack sizes can vary by supplier and stock. US delivery from Canada is available to eligible addresses.

Missed Dose and Timing

If a monthly dose is missed, give it as soon as you remember and resume the regular monthly schedule. If more than one month is missed, talk with your veterinarian. Testing for heartworm infection may be needed before restarting prevention.

Storage and Travel Basics

Store Interceptor at room temperature in the original packaging. Protect from moisture and excessive heat. Keep out of reach of children and other animals. For travel, keep tablets in the carton or blister sleeve. You can pack doses you need in your carry-on to avoid temperature extremes. Follow any specific storage notes on the package insert.

Benefits

• Monthly oral dosing helps prevent heartworm disease
• Treats and controls common intestinal worms
• Small, palatable chewable flavor tabs
• Weight-banded options for cats and dogs
• Canadian pricing with US delivery helps manage ongoing costs

Side Effects and Safety

• Most pets tolerate Interceptor well
• Possible mild effects: vomiting, diarrhea, decreased appetite, drooling
• Occasional lethargy or tiredness
• Rare neurologic signs have been reported

Serious reactions are uncommon but can include severe vomiting, tremors, or collapse. Seek veterinary care if your pet shows concerning signs. Use with caution in pets with a history of seizures. Pets should be tested for heartworm before starting prevention, because giving preventives to heartworm-positive animals requires veterinarian oversight.

Drug Interactions and Cautions

Tell your veterinarian about all medicines and supplements your pet receives. Caution is advised when combining with other macrocyclic lactone products or certain products that affect drug transport in the brain. Use only under veterinary guidance in breeding, pregnant, or lactating animals. Interceptor does not cover fleas, ticks, or tapeworms. If tapeworm risk is present, see our guide to Droncit For Cats and ask your vet about coverage needs.

Prescription required and verified.

What to Expect Over Time

With steady monthly use, Interceptor helps prevent heartworm disease and controls susceptible intestinal worm infections. Many veterinarians perform periodic stool checks to confirm intestinal parasite control. Keep monthly reminders so doses are not missed. The product will not treat existing adult heartworm infections. Pets at ongoing risk of fleas or ticks may need an additional product recommended by your veterinarian.

Compare With Alternatives

Some pets benefit from broader parasite coverage. Your veterinarian may suggest:

• Interceptor® Plus for dogs, which adds tapeworm coverage with praziquantel.
• Revolution® Plus for cats, a topical option that covers heartworm prevention plus fleas and ticks.

Other veterinarian-administered options, such as an injectable heartworm preventive for dogs, may suit certain households. Your clinician will help match the spectrum and format to your pet’s needs.

Pricing and Access

See current pricing and compare multi-month options to save on each dose. Canadian pricing with US delivery helps lower the cost of year-round prevention. Start your order online and upload your prescription to begin verification.

Looking for seasonal deals? Check our Promotions. You can also browse more options in Pet Medications.

Availability and Substitutions

Availability can vary by strength and pack size. If a specific size is unavailable, your veterinarian may recommend a comparable preventive or a different format. For dogs, an office-administered injection like Proheart® 6 or a topical preventive such as Revolution® For Dog may be considered. Do not switch products without veterinary guidance.

Patient Suitability and Cost Saving Tips

Good candidates include indoor and outdoor pets in regions with mosquitoes or year-round parasite risk. Most dogs and cats can take Interceptor when appropriately dosed and tested negative for heartworm. Pets with a history of neurologic issues or severe gastrointestinal disease may need closer monitoring or a different product.

• Ask about a multi-month supply to reduce per-dose cost
• Set reminders so you do not miss a monthly dose
• Combine with a separate flea and tick product if needed
• If only intestinal worms are the concern, discuss options like Milbemax® with your veterinarian

Questions to Ask Your Clinician

• Does my pet need year-round heartworm prevention?
• Which tablet strength fits my pet’s current weight?
• Should we add a flea and tick product?
• When should we repeat a heartworm test?
• What signs should I watch for after the first dose?
• How long should we continue prevention in our area?

Authoritative Sources

Ready to get started? Order Interceptor with US delivery from Canada and keep doses on schedule.

Disclaimer: This page is informational and does not replace your veterinarian’s advice. Always follow the approved label and your clinic’s instructions.