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Sentinel Flavor Tabs for Dogs

Prescription Required
From $8.39


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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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Sometimes, manufacturers require that products be advertised only at their suggested prices. When we choose to sell these items for less, we display the sale price only in the cart. To see the price, click Add to Cart.

Product Summary:

Prescription items are NON-RETURNABLE and NON REFUNDABLE

SENTINEL® Flavor Tabs®
(milbemycin oxime/lufenuron)
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 are only authorized to ship within the United 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. By law we can only accept a prescription faxed from your veterinarian or we must have the original prescription.

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

Are we a licensed pharmacy?

The National Association of Boards of Pharmacy (NABP) has approved us as a Safe Site through its .pharmacy verified website 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, an NABP .pharmacy verified website. This gives you a trusted and affordable alternative to purchase the medications your beloved pets need to maintain quality of life and overall health.

The .Pharmacy Verified program, prior to approval of domain registration, ensures that applicants meet all applicable Program Standards, which address regulatory standards including; to be licensed, registered, or hold appropriate permits where it is headquartered and where its customers reside, to protect patient medical and financial information and to have a clean disciplinary record.

To find out How to Fill your Pets Prescription click on More Information at the top. 

Product Reviews by Customers

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Browse 2 questions Browse 2 questions and 51 answers
Why did you choose this?
KV Supply Store
Vet recommended.
DENISE F on Sep 2, 2019
recommended by our Vet
LAWRENCE W on Apr 17, 2019
Vet recommended.
DENISE F on Sep 2, 2019
kills heartworms and fleas
lisa s on Jun 24, 2019
recommended by our Vet
LAWRENCE W on Apr 17, 2019
Have used for years and your prices are great.
Mary E on Apr 8, 2019
Did my research and this seems to be the best overall pill for the money.
JAMIE P on Nov 3, 2018
My dogs like it and it takes care of them.
Patrick W on Nov 2, 2018
Great flea prevention, especially when you have kids, because you are not pouring chemicals all over the dog's skin.
Melissa L on Sep 1, 2018
My internal medicine vet recommended this one for my dog who shows in the Midwest. It covers worms in that area such as hookworm. Another friend of mine used Heartguard, and her dog came home loaded with roundworms. This one works and no worms.
SANDRA B on Aug 3, 2018
My dog likes the taste of these and is not allergic to them when she is allergic to just about everything! They have always protected her, so I trust them.
Barbara N on Jun 20, 2018
Vet recommended
Allan L on Jun 15, 2018
Vet recommended. Dog will eat with a bit of Greenies pill pocket smoothed around it.
Linda B on Jun 13, 2018
Prescribed by Vet, GoodRX showed my KVSupply as source.
Lavada S on May 14, 2018
Good price
Robert F on May 5, 2018
Because I show dogs in the Midwest, and hookworm is there, I use this one. My dogs always come back worm free. I know others use Heartguard, but only to have their dogs come back with round worms. My vet suggested this one for the area my dog resides in.
SANDRA B on May 2, 2018
Veterinarian recommended
Carol F on Apr 30, 2018
Been using it for years.
T D on Apr 27, 2018
my dog has used sentinel tabs for years. we tried other brands when sentinel went down...but she never responded well to others so we came back!
Sara S on Apr 14, 2018
prescribed by vet
SHEILA R on Apr 11, 2018
It is such a great price and product.
Mary E on Apr 8, 2018
I have a small dog, a Chihuahua. This Heart worm preventative does not upset his stomach as it is made for dogs that weigh below 10 pounds. It is often hard to find pills formulated for small dogs.
JILL G on Mar 24, 2018
best price
Donna L S on Mar 13, 2018
We have used Sentinel Flavor Tabs for years and our dogs have never had any heartworm issues. The flea sterilizer does a great job at preventing flea infestation.
JEFF R on Mar 2, 2018
Vet recommendation
Paul M on Feb 27, 2018
Prescribed by Vet
Tracey H on Feb 26, 2018
Have always used for all my dogs. very happy with product.
RICHARD L on Feb 26, 2018
Used for years gets the job done.
Gary B on Feb 7, 2018
Use it for years
Peter G on Feb 6, 2018
combines Heartworm medicine and a benign internal flea medicine that prevents the flea exoskeleton from forming. Safe enough to feed to pregnant animals. Does not cause seizures, and paralysis the way the topical ones do.
Margaret a on Jan 28, 2018
Kv Supply has the best price for a six pack of Sentinel for dogs 51-100 lbs (Per "Good Rx", which compares prices to get the customer the best price available for their script.)
Carolina S on Jan 27, 2018
this is what our vet has recommended and pups take them like they are treats
Debby S on Jan 25, 2018
It works well.
Deborah P on Jan 19, 2018
Gentle on my Pups stomach and works well.
Rebecca R on Jan 18, 2018
This is an effective and affordable product.
Kim D on Jan 15, 2018
Vet recommended
DEANNA B on Jan 6, 2018
Currently using with good results.<br /><br />Dog hates this I have to hide in her food!
Anthony D on Dec 26, 2017
My vet recommended this medication for my dog. She loves it, and thinks that it's a treat.
Elizabeth H on Dec 25, 2017
Recommended by my vet, been using it for years, and it has been effective. However, buyers should be aware it does not control ticks, so I supplement with a spot on treatment on the advice of my vet, as I live in the country (wooded area) where ticks can be an issue.
Lynn H on Dec 21, 2017
My vet recommended it.
Miriam A on Dec 12, 2017
My Vet encouraged it and our dog loves the flavor.
Wanda R on Dec 12, 2017
Dogs prefer Sentinel to the Interceptor. Price was best around and today included a holiday special making it even better.
Dianne K on Dec 9, 2017
Excellent Price and Free Shipping!!
Corie W on Dec 7, 2017
That's what my vet recommends for my dogs. KV supply is less expensive than purchasing at my vet.
Vicky W on Nov 28, 2017
My dog has been on this medication for quite awhile and I usually just pay full price at the Vet. When I saw how much less it was to purchase it here, I thought I would<br />try it and save some money.
Bonnie M on Nov 27, 2017
Cost effective treatment that works efficiently.
Charles B on Nov 22, 2017
used it for 4 years and dog has no parasites - I want to take preventative measures
John C on Nov 10, 2017
Great product and great price!
Scott E on Oct 31, 2017
My internist vet recommended this brand. I send my dogs to the Midwest to be shown. Everybody else's get round worms and hook worms using the other brands of heartworm meds. Mine never come back home with any of these parasites. This stuff covers the other parasites too.
SANDRA B on Oct 30, 2017
Have been using it for years with multiple dogs. Great results and see no need to change.
DEWEY F on Oct 23, 2017
We use Sentinel for heartworm prevention in our pregnant bitches
Ellen B on Oct 23, 2017
Effective, reasonable cost. It works.
SRIRAM R on Oct 17, 2017
kills heartworms and fleas
lisa s on Jun 24, 2019
Have used for years and your prices are great.
Mary E on Apr 8, 2019
You have a toll free number I can call?
Lisa E on Aug 4, 2017
BEST ANSWER: Our customer care number is 1-844-493-6817