Sentinel Spectrum Chews

Prescription Required
From $8.79


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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 3 questions Browse 3 questions and 10 answers
Why did you choose this? Store
sharon c on Mar 17, 2019
Keeping my girl healthy!
Sylvie Z on Jul 13, 2018
sharon c on Mar 17, 2019
vet recommended
Nyokee C on Jan 24, 2019
Keeping my girl healthy!
Sylvie Z on Jul 13, 2018
I trust this and your site is greate
Julie N on May 6, 2018
Recommended by foster mom.
Jacquelyn S on Apr 30, 2018
Our new rescue pup has hook worms and this product was recommended by our vet.
Jan K on Jan 13, 2018
Usually use Trifexis however the cost is to expensive. Will give Sentinel a try since it covers heartworm and more.
abby1bosley2 on Mar 6, 2017
vet recommended
Nyokee C on Jan 24, 2019
I trust this and your site is greate
Julie N on May 6, 2018
I have been giving my 10.5lbs Maltese dog Trifexis for 12 consecutive months now. But due to budget constraints, I want to give him Sentinel Spectrum instead because Trifexis is very expensive! Is it safe to give my dog a different brand of heartworm and flea prevention?
Clarky on Mar 22, 2016
BEST ANSWER: I would ask your vet more about the medication, and if it is the right choice for your dog. I have never used that brand before. I choose Sentinel, because the Heartworm, and topical flea stuff never seems to get rid of the fleas, and then I spend more money, and time trying to get ride of the fleas.
what if my dog is more than 100 pounds?
A shopper on Feb 14, 2016
BEST ANSWER: This item is a perscription product. Any dosage questions should be directed to your vet.