Wait, we have a special
offer for you!

Click the button below to get your discount.

Get my coupon now No thanks, I'd like to pay full price

Use coupon code at checkout:


Use my coupon

Interceptor Spectrum (Milbemycin Oxime / Praziquantel)

Prescription requiredOnly Available By Prescription
Free Shipping on orders over $100

Top brand choice

What is a Generic Drug?

A generic drug is a copy of the brand-name drug with the same dosage, safety, strength, quality, consumption method, performance, and intended use. Before generics become available on the market, the generic company must prove it has the same active ingredients as the brand-name drug and works in the same way and in the same amount of time in the body.

The only differences between generics and their brand-name counterparts is that generics are less expensive and may look slightly different (eg. different shape or color), as trademarks laws prevent a generic from looking exactly like the brand-name drug.

Generics are less expensive because generic manufacturers don't have to invest large sums of money to develop a drug. When the brand-name patent expires, generic companies can manufacture a copy of the brand-name and sell it at a substantial discount.


  You'll have option to make 4 interest-free payments by credit card once your order is confirmed using  


Interceptor Spectrum is a worm prevention medication for dogs available by prescription and used for heartworm prevention along with also eliminating roundworm, whipworm, hookworm, and tapeworms. Milbemycin Oxime and Praziquantel are anthelmintic drugs that kill adult, juvenile, and larval worms and Interceptor Spectrum chews being a once-monthly medication means it is easy to give your dog year-round protection from all the types of worms that infect dogs most frequently. Buy Interceptor Spectrum for dogs from Canada and Canpharm and get the best price on it.

Buy Interceptor Spectrum (Milbemycin Oxime / Praziquantel) online from online Canadian Pharmacy |


Interceptor medicine for dogs is given as 1x-per month chewable and you should give one chewable tablet to your dog at approximately the same time each month.

Dosage will vary based on the dog's body weight and with packaging color representing the correct dosage for the pet:

  • Red – dogs 1 to 4kg
  • Green – dogs 4.5 to 11kg
  • Yellow – dogs 11.5 to 22kg
  • White – dogs 22.5 to 45kg


The active ingredients in Interceptor Spectrum chews are Milbemycin Oxime and Praziquantel


Let your veterinarian know if your dog has any history of compromised liver, kidney, or immune system function before starting them on Interceptor Spectrum

Some dogs may be required to take a current heartworm test before starting on the medication

Do not exceed dosage regulation of maximum 1 chew per month. If medication does not appear to be effective, you should meet with a veterinarian again.

After the first dosage, it is best to monitor your dog for any adverse reactions to the medication, including stomach upset or vomiting.

Keep in cool, dry place and out of the reach of children

Be aware of medication expiry date


There are no known drug interaction risks between Interceptor medicine for dogs and other Rx pet medications, but it may still be advisable to let your veterinarian know of any medications your dog is currently on before you get a prescription and proceed to buy Interceptor Spectrum for dogs online.

Side Effects

Interceptor Spectrum for dogs side effects may occur, and some dogs may experience depression, lethargy, weakness, pupil dilation, stomach upset, or excessive drooling. If side effects are seen, you may want to stop use and meet with a veterinarian again to discuss pet worm prevention medication alternatives.

Remember, these are not exhaustive lists, and it's important to consult with a healthcare professional for personalized advice and guidance. If you prefer, you may contact the U.S. Food and Drug Administration (FDA) directly. Visit or call 1-800-FDA-1088

Interceptor Spectrum (Milbemycin Oxime / Praziquantel) Medication FAQs

What is Interceptor Spectrum?

Interceptor Spectrum is a monthly chewable medication for dogs that prevents heartworm disease and treats and controls hookworms, roundworms, whipworms, and tapeworms.

How does Interceptor Spectrum work?

Milbemycin oxime, one of the active ingredients in Interceptor Spectrum, kills the immature heartworm larvae that are transmitted to dogs through mosquito bites. It also kills adult hookworms, roundworms, and whipworms. Praziquantel, the other active ingredient in Interceptor Spectrum, kills tapeworms.

How often should I give my dog Interceptor Spectrum?

Interceptor Spectrum should be given to your dog once a month, on the same day each month. It can be given with or without food.

What are the side effects of Interceptor Spectrum?

The most common side effects of Interceptor Spectrum are vomiting and diarrhea. Less common side effects include depression, lethargy, ataxia, anorexia, convulsions, weakness, and salivation.

Is Interceptor Spectrum safe for puppies?

Yes, Interceptor Spectrum is safe for puppies weighing more than 2 pounds and older than 4 weeks of age.

Is Interceptor Spectrum safe for pregnant or nursing dogs?

Yes, Interceptor Spectrum is safe for pregnant and nursing dogs.

Can I give Interceptor Spectrum to my cat?

No, Interceptor Spectrum is not approved for use in cats.

What should I do if I miss a dose of Interceptor Spectrum?

If you miss a dose of Interceptor Spectrum, give it to your dog as soon as you remember. If it has been more than 15 days since the last dose, give your dog a dose immediately and then resume your regular monthly dosing schedule.

How do I store Interceptor Spectrum?

Interceptor Spectrum should be stored in a cool, dry place at room temperature.

Where can I buy Interceptor Spectrum?

Interceptor Spectrum is available from your veterinarian.

Additional FAQ

Can I give Interceptor Spectrum with other medications?

You should talk to your veterinarian before giving Interceptor Spectrum with any other medications, including other heartworm preventives or oral antiparasitics.

What should I do if my dog has a bad reaction to Interceptor Spectrum?

If your dog has a bad reaction to Interceptor Spectrum, stop giving it to them and contact your veterinarian immediately.

IMPORTANT NOTE: The above information is intended to increase awareness of health information and does not suggest treatment or diagnosis. This information is not a substitute for individual medical attention and should not be construed to indicate that use of the drug is safe, appropriate, or effective for you. See your health care professional for medical advice and treatment.