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Sentinel Spectrum Chews

Prescription Required
From $8.79

Eligible for free e-certification with purchase

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Select your product options above to view the stock and delivery information.


Select your product options above to view the stock and delivery information.

All medications are filled by Pet's Choice Pharmacy. More information. Can only be shipped in the United States.
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Product Summary:

Prescription items are NON-RETURNABLE and NON REFUNDABLE

Sentinel Spectrum Chewables

Sentinel Spectrum is a once-a-month chewable tablet that contains a combination of milbeycin oxime, praziquantel, and lufenuron to prevent and control fleas, heartworm and intestinal worms in dogs. Milbemycin oxime interferes with nerve transmission and helps protect against heartworm, roundworm, hookworm, and whipworm. Praziquantel causes muscle spasms and kills tapeworms. Lufenuron is an insect growth regulator, which is used to control fleas by preventing the development of flea eggs.

Item Specifications:

Sentinel Spectrum is a highly palatable beef-flavored chewable tablet that provides broad spectrum parasite protection.

For use:
Dogs (at least 6 weeks of age and weighing at least 2 lb.)

X-small (Orange) for dogs 2 to 8 lb.
Small (Green) for dogs 8.1 to 25 lb.
Medium (Yellow) for dogs 25.1 to 50 lb.
Large (Blue) for dogs 50.1 to 100 lb.

Active Ingredient(s):
Milbeycin oxime, lufenuron, praziquantel

Dogs should be tested for adult heartworms and treated if necessary before starting Sentinel Spectrum. This product does not treat adult heartworms and can cause a shock-like reaction in  heartworm positive dogs. Do not use on dogs under 6 weeks of age and weighing under 2 lbs. The safety of Sentinel Spectrum has not been evaluated in nursing females. Contact your veterinarian if your pet experiences any unusual reactions when different medications are given together. Allergic reactions to medications may occur. Be sure to inform your veterinarian if your pet has any known drug sensitivities or allergies. If your pet displays symptoms of an allergic reaction, call your veterinarian immediately or go to a veterinary emergency clinic. Symptoms may include but are not limited to: swollen lips, tongue, face, airways; difficulty breathing; agitation; profuse salivation; vomiting; widespread hives and itching.

Side Effects:
Side effects may include vomiting, depression/lethargy, itching, hives, diarrhea, loss of appetite, clogged pores, loss of muscle coordination, rapid and uncontrollable shaking, salivation, and weakness. Notify your veterinarian if side effects appear and remain troublesome. Other side effects may occur, if you notice anything unusual, contact your veterinarian.

Give either during or immediately after the consumption of a meal and ensure that the entire dose is consumed by your pet. May be given directly or broken into smaller pieces and mixed with food.

Virbac acquired Sentinel Flavor Tabs and Sentinel Spectrum products, previously manufactured and marketed in the United States by Novartis Animal Health. During the transitional period, the manufacturer may still be listed as "Novartis" on product packaging.

Style Item Number Model Number UPC
50.1-100lbs 1 Count 406378 LG 001 012KV-27504
50.1-100lbs 6 Count 406378 LG 006 012NOV-754 716688097545
25.1-50lbs 1 Count 406378 MD 001 012KV-27503
25.1-50lbs 6 Count 406378 MD 006 012NOV-753 716688097538
8.1-25lbs 1 Count 406378 SM 001 012KV-27502
8.1-25lbs 6 Count 406378 SM 006 012NOV-752 716688097521
2-8lbs 1 Count 406378 XS 001 012KV-27501
2-8lbs 6 Count 406378 XS 006 012NOV-751 716688097514
Additional Information:

Please Note: 

This prescription product or therapeutic food is fulfilled by Pet’s Choice Pharmacy, Inc. A licensed pharmacy in all states, excluding North Carolina. Pet’s Choice is working with North Carolina Board of Pharmacy to be licensed to fill prescriptions in the future. We can only ship to US states. 

To order prescription products or therapeutic foods must have an existing, valid veterinarian-client-patient relationship.  Prescription requests are subject to a Drug Utilization Review by a licensed pharmacist for patient safety.

All prescription products (excluding therapeutic food) are FDA approved, or EPA licensed, to be sold in the US. Prescription products cannot be returned.  


How do you fill my pet’s prescription order?

We understand how important your pet’s health is to you. That’s why we partnered with Pet’s Choice Pharmacy, a fully accredited Vet-VIPPS national pharmacy. Located in Belleville, Kansas, Pet’s Choice Pharmacy is a trusted partner that is fully licensed to distribute pharmaceutical products in all states, excluding North Carolina. This licensing ensures that they adhere to the proper standards for handling and dispensing pet medications directly to you, at a significant savings.


How does the prescription process happen?

Pet’s Choice Pharmacy will contact your veterinarian directly to obtain the necessary information and approval to dispense the medications ordered. It is helpful to have veterinarian’s name, phone number, and fax number when you place your order so we can speed up contact process with veterinarian. After prescription is verified, your medication will be safely dispensed and shipped directly to you. If you veterinarian does not participate or support online sales, you can mail your script to us directly.


Pet’s Choice Pharmacy  

814 K Street

Belleville, KS 66935 Order #


Are we a licensed pharmacy?

The National Association of Boards of Pharmacy (NABP) has approved us as an Internet Advertiser of prescription drug-related services through its e-Advertiser Approval program. We are not a licensed pharmacy; however, we are permitted to display pet medications on our site and have prescription orders fulfilled and delivered through our trusted partner, Pet’s Choice Pharmacy, a full Vet-VIPPS accredited pharmacy. This gives you a trusted and affordable alternative to purchase the medications your beloved pets need to maintain quality of life and overall health.


If you have any medical questions about your pet, we suggest you speak with your veterinarian before administering any medication.  If you would like to speak with our pharmacy support team about your order, you can contact us directly Monday-Friday 9 am-5 pm EST at (877) 574-2267. If you veterinarian needs to fax your prescription, our fax number is (866) 787-1177.


** By law we can only accept a prescription faxed from your veterinarian or we must have the original prescription**


Product Reviews by Customers

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Browse 4 questions Browse 4 questions and 5 answers
Why did you choose this? Store
By vet.
FuHua R on Mar 8, 2018
By vet.
FuHua R on Mar 8, 2018
FuHua R on Feb 13, 2017
FuHua R on Feb 13, 2017
I need 2 years worth for 2 dogs11 lbs each?
Patty on Mar 18, 2019
BEST ANSWER: You would most likely need the 1-25 pound, 4 of the 6 count boxes. But this requires a prescription from a veterinarian, so I would talk to you vet before purchasing.
Is this for flea and tick?
A shopper on Apr 18, 2018
BEST ANSWER: The Sentinel Spectrum is for heart worm prevention. It will control fleas but not ticks.
what is the difference between sentinel spectrum and sentinel flavor tabs?
p k on Feb 21, 2018
BEST ANSWER: Sentinel Spectrum Chewables ingredients Milbeycin oxime, lufenuron, praziquantel. Sentinel Flavor Tabs for Dogs does not have the ingredient praziquante. Praziquantel medication used to treat a number of types of parasitic worm infections.