Sentinel Flavor Tabs for Dogs

Prescription Required
From $7.59


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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® Flavor Tabs®
(milbemycin oxime/lufenuron)
2-8 lb has a product expiration date of 7/18
8-25 lb has a product expiration date of 6/20
25-50 lb has a product expiration date of 8/20
50-100 lb has a product expiration date of 7/20
The palatable once-a-month prescription tablet that prevents heartworm disease and flea populations in dogs and puppies, SENTINEL® (milbemycin oxime/lufenuron) Flavor Tabs® also control flea populations and adult hookworms, and remove and control adult roundworm and whipworm infection in dogs and puppies. These tablets are available in four tablet sizes in color-coded packages for oral administration to dogs and puppies according to their weight. Each tablet is formulated to provide a minimum of 0.23mg/lb. (0.5mg/kg) of milbemycin oxime and 4.55mg/lb. (10mg/kg) body weight of lufenuron.

Item Specifications:

Sentinel Flavor Tabs are indicated for use in dogs and puppies, four weeks of age and older, and two pounds body weight or greater. Sentinel Flavor Tabs are also indicated for the prevention of heartworm disease caused by Dirofilaria immitis, for the prevention and control of flea populations, the control of adult Ancylostoma caninum (hookworm), and the removal and control of adult Toxocara canis and Toxocara leonina (roundworm) and Trichuris vulpis (whipworm) infections. Lufenuron controls flea populations by preventing the development of flea eggs and does not kill adult fleas. Concurrent use of adulticide product may be necessary for adequate control of adult fleas.

Sentinel Flavor Tabs are given orally, once a month, at the recommended minimum dosage of 0.23mg/lb. (0.5mg/kg) milbemycin oxime and 4.55mg/lb. (10mg/kg) lufenuron. Dogs over 100 lb. are provided the appropriate combination of tablets.

Do not use in puppies less than four weeks of age and less than two pounds of body weight. Prior to administration of Sentinel Flavor Tabs, dogs should be tested for existing heartworm infections. Infected dogs should be treated to remove adult heartworms and microfilariae prior to initiating treatment with Sentinel Flavor Tabs. Mild, transient hypersensitivity reactions manifested as labored respiration, vomiting, salivation and lethargy have been noted in some treated dogs carrying a high number of circulating microfilariae. These reactions are presumably caused by release of protein from dead or dying microfilariae.
Sentinel Flavor Tabs immediately break the flea life cycle by inhibiting egg development. However, pre-existing flea populations may continue to develop and emerge after treatment with Sentinel Flavor Tabs has begun. Based on results of clinical studies, this emergence generally occurs during the first 30-60 days. Therefore, noticeable control may not be observed until several weeks after dosing when a pre-existing infestation is present. Cooler geographic areas may have longer lag periods due to a prolonged flea life cycle. The concurrent use of an approved adulticide, like CAPSTAR may be employed depending on the severity of the infestation.
If a Sentinel Flavor Tabs-treated dog comes in contact with a flea-infested environment, adult fleas may infest the treated animal. These adult fleas are unable to produce viable offspring. The temporary use of an adulticide product may be necessary to kill these adult fleas.

Adverse Reactions:
The following adverse reactions have been reported in dogs after giving milbemycin oxime or lufenuron: vomiting, depression/lethargy, pruitus, urticaria, diarrhea, anorexia, skin congestion, ataxia, convulsions, hypersalivation and weakness.

Storage Conditions:
Store in a dry place at controlled room temperature, between 59º and 77ºF (15-25ºC). Caution:
Federal (USA) law restricts this drug to use by or on the order of a licensed veterinarian.

Not for human use. Keep this and all drugs out of the reach of children.

Style Item Number Model Number UPC
26-50lbs 6 Count 497044 LG 6CT 012NOV07-26-50 716688522313
11-25lbs 1 Count 497044 MD 1CT 012KV-27402
11-25lbs 6 Count 497044 MD 6CT 012NOV07-11-25 716688522214
2-10lbs 1 Count 497044 SM 1CT 012KV-27401
2-10lbs 6 Count 497044 SM 6CT 012NOV07-2-10 716688522115
51-100lbs 6 Count 497044 XL 6CT 012NOV07-51-100 716688522412
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 5 questions Browse 5 questions and 17 answers
Why did you choose this? Store
Vet recommends this brand; my 3 Collies like the flavor.
Laura H on Apr 4, 2019
best protection
debbie h on Sep 2, 2018
Vet recommends this brand; my 3 Collies like the flavor.
Laura H on Apr 4, 2019
These items were recommended by the breeder.
William G on Oct 3, 2018
best protection
debbie h on Sep 2, 2018
dog needs them.
Irvin T on Aug 27, 2018
Prescribed by my vet.
Linda T on Feb 23, 2018
Vet recommended
Carolyn M on Jan 22, 2018
This product was highly recommended by my vet and my pup has had no negative reaction
bal17ance on Sep 29, 2017
I have used this product for year and it works great
mary ann m on Aug 19, 2017
Vet recommendation
Thomas C on Jul 16, 2017
For my dogs heartworm health.
Victoria C on Jan 11, 2017
I never would have gotten heartworm medicine, because we don't have mosquitoes. But our Lab pup had round worms, and the vet told us that was the leading cause of blindness among children in the U.S.! Scared me! but cheaper here than from the vet!
Theresa K on Feb 4, 2015
vet recommended
Patricia K on Jan 22, 2015
These items were recommended by the breeder.
William G on Oct 3, 2018
dog needs them.
Irvin T on Aug 27, 2018
I bought the 2 to 10 pounds size package. My dog is now 13 pounds and the vet says the 2 to 10 is not sufficient. Can I use two or three tablets per treatment so as to use the current product?
Frank S on May 20, 2016
BEST ANSWER: Our vet said the same about our pup who is 11lbs and we were going to buy the next box up. Then to find out, here on the East Coast, the mosquitos are fighting the active ingredient in sentinel and he switched us to Interceptor, 11-25lbs. So I would ask your vet if giving 1-1/2 tabs would be sufficient, at three tabs or even 2, i would think you would be overdosing your dog. Heartworm is no joke so follow the vets advise. Heartworm is painful and very expensive if your pup gets it.
Where is blank to place an order?
A shopper on Nov 25, 2017
BEST ANSWER: I'm not sure I understand your question? You can contact our Customer Service Team at 1-888-809-0748 and we'd be happy to help.
what is shipping chargefor Sentinel 6 pack?
A shopper on Jun 12, 2017
BEST ANSWER: Hi there, it varies by location. You can calculate shipping by adding the item(s) to your cart, checking out as a guest, and just entering in your zip code and State.
what do you recommend for sand fleas for my small
A shopper on Nov 11, 2014
BEST ANSWER: Please consult with your veterinarian. This product is a prescribed medication.