Sentinel

5 out of 5 Customer Rating
Sentinel is rated 4.5 out of 5 by 919.
  • y_2020, m_9, d_28, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_15, tr_904
  • loc_en_US, sid_prod10118, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_1800petmeds
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 6ms
  • reviews, product
1. We'll ask for your vet's info during checkout.
2. We verify your prescription and ship your order!
Close
Starts $103.84 $72.69
Most orders ship the same day

Sentinel

5 out of 5 Customer Rating
Sentinel is rated 4.5 out of 5 by 919.
  • y_2020, m_9, d_28, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_15, tr_904
  • loc_en_US, sid_prod10118, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_1800petmeds
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getAggregateRating, 6ms
  • reviews, product
Starts $103.84 $72.69
Most orders ship the same day
Dog
Please select all product options.

Reviews

Rated 5 out of 5 by from Great I have used Sentinel on all my dogs & never was disappointed! My dogs did great on this product
Date published: 2020-06-07
Rated 5 out of 5 by from Negative heart worm result every year I have used Sentinel for my dog for the six years I have had him I was able to order a year’s supply for less than the six month supply quote from my vet.
Date published: 2020-06-02
Rated 5 out of 5 by from Sentinel & Negard are the best! My 3 longhair Chihuahuas have been on Sentinel & Nexgard for several years now. Zero issues with any of the dogs and the preventatives! Just perfect results! 1800PetMeds went above and beyond to fix the issue with the vet I was currently going to NOT cooperating with Petmeds! That vet wanted me to buy THEIR meds at a ridiculously marked up price! Thanks 1800PetMeds for the excellent experience with you guys. I will be a life long customer! You simple CAN NOT beat the prices!
Date published: 2020-06-01
Rated 5 out of 5 by from Works best for my dog I’ve tried other medications for fleas/parasites that caused vomiting with blood in my dog. I went back to Sentinel because it’s combined with a heart worm preventative. The topical flea meds aren’t great for my dog as he has short hair, no fat to absorb it.
Date published: 2020-05-31
Rated 5 out of 5 by from Recommend! Our Vet recommends Sentinel for heart worm prevention. Our Border Collie has never had a problem taking it and always gets a clean bill of health from the Vet each year.
Date published: 2020-05-15
Rated 5 out of 5 by from Carrie's what my vet recommends My vet recommends Sentinel for heartworm and also for fleas and ticks. Use them monthly and at a great savings. Very happy with the timely manner from placing my order to receiving it
Date published: 2020-05-09
Rated 1 out of 5 by from Warranty Company's warranty useless anything to get out of the part of paying for heartworm treatment
Date published: 2020-05-07
Rated 5 out of 5 by from Sentinel Sentinel works great for our toy poodles. I especially like the fact that it come in different strengths to accommodate different breeds.
Date published: 2020-05-02
  • y_2020, m_9, d_28, h_16
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasreviews, tv_15, tr_904
  • loc_en_US, sid_prod10118, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_1800petmeds
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getReviews, 6ms
  • reviews, product

Questions

Ho do you get the RX for Sentinel, from our vet? We are currently buying it from the vet.

Asked by: Paulette
Place your order and provide your vet's information. PetMeds will contact your vet for prescription approval.
Answered by: SuzyCVT
Date published: 2020-08-08

order online won't move to cart

Asked by: elkybear13
We are very sorry for the inconvenience. We will have our I.T department look into this immediately. If you need to place an order now and have not done so by now, please give us a call at 1-800-738-6337 so we can further assist you.
Answered by: Cherley Petmeds Pro
Date published: 2020-07-17

Is sentinal a Spectrum heartworm medication?

Asked by: Angie
Yes, both Sentinel and Sentinel Spectrum is a heartworm preventative medication.
Answered by: Shari PetMed Pro
Date published: 2020-07-21

My female Saint is currently approaching 100 lbs, when she does surpass, what would the proper dosage that I would need?

Asked by: ping
You would choose a second tablet that will cover whatever your large friend weighs over the 100 pounds. For example, if she is 120 pounds, you will need the 51-100 pound dose plus the 11-25 pound dose.
Answered by: SuzyCVT
Date published: 2020-06-14

My dogs weight is on the cusp of 50lbs. Which dose should I choose? I don't want to over medicate.

Asked by: Jennifer
Contact your veterinarian for his/her recommendation for your particular furry friend.
Answered by: SuzyCVT
Date published: 2020-06-04

How would this product affect a dog who is pregnant??

Asked by: Kaibutsu
Thanks for your question! This medication contains an ingredient that has not been approved for use in pregnancy. It is possible that this medication may cause birth defects or other harmful effects if given to a pregnant dog. Hope this helps!
Answered by: Linda Pharmacy Intern
Date published: 2020-05-30

what is the expired date for this product? Sentinel green

Asked by: mike
Sentinel usually has a 2 to 3 year shelf life.
Answered by: Cherley Petmeds Pro
Date published: 2020-05-27

Should I give additional monthly flea and tick pill with Sentinel?

Asked by: Jen612
Yes, it is safe to give an additional flea and tick prevention since Sentinel does not kill fleas, just prevents flea eggs from hatching.
Answered by: SuzyCVT
Date published: 2020-05-22
  • y_2020, m_9, d_29, h_16CST
  • bvseo_bulk, prod_bvqa, vn_bulk_3.0.12
  • cp_1, bvpage1
  • co_hasquestionsanswers, tq_571
  • loc_en_US, sid_prod10118, prod, sort_[SortEntry(order=LAST_APPROVED_ANSWER_SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_1800petmeds
  • bvseo_sdk, dw_cartridge, 18.2.0, p_sdk_3.2.0
  • CLOUD, getContent, 5ms
  • questions, product

What is Sentinel?

Sentinel is the only monthly oral preventive that guards against heartworms, adult roundworms, adult hookworms, whipworms, and prevents the development of flea eggs. Sentinel requires a prescription from your veterinarian.

For:

Dogs and Puppies (4+ weeks of age, weighing 2+ lbs)

Benefits:

  • Comes in palatable flavored tabs
  • Easy to administer just once a month

How does Sentinel work?

Milbemycin oxime eliminates the tissue stage of heartworm larvae and the adult stage of hookworm, roundworm, and whipworm infestations. Lufenuron, the other active ingredient, is an insect development inhibitor that breaks the flea life cycle by inhibiting egg development. Lufenuron prevents most flea eggs from hatching or maturing into adults and thus prevents and controls flea populations by breaking the life cycle.

Cautions:

Side effects are rare, though some pets may exhibit vomiting, depression, drowsiness, itching, hives, loss of appetite, diarrhea, or seizures, hypersalivation, and weakness. If these or other symptoms develop contact your veterinarian. It's important to maintain good personal hygiene, since humans can contract hookworms and roundworms. It's also important to eliminate fleas and to not feed your pet rodents or uncooked meat or fish. To prevent re-infection, clean up stools on a daily basis. Consult your veterinarian for pregnant or lactating dogs.

Brand Name:

Sentinel (Virbac)

Generic Name:

Milbemycin Oxime (mil-beh-my-sin ox-eem) and Lufenuron (lew-fen-your-on)

What is the most important information I should know about Sentinel?

Sentinel is a prescription medication FDA-approved for use in dogs. Sentinel is available as artificial beef flavored (derived from pork and soy protein) chewable tablets. This medication should be given once a month year-round.

What should I discuss with my veterinarian before giving Sentinel to my pet?

Tell your veterinarian if your pet has ever had an allergic reaction to the medication.

How should Sentinel be given?

Give Sentinel exactly as directed by your veterinarian. If you do not understand the directions ask your pharmacist or veterinarian to explain them to you. The usual dose of Sentinel for dogs 2 to 10 pounds is 1 Flavor Tab every month (Brown Box), 11 to 25 pounds is 1 Flavor Tab every month (Green Box), 26 to 50 pounds is 1 Flavor Tab every month (Yellow Box) and 51 to 100 pounds is 1 Flavor Tab every month (White Box). For dogs over 100 pounds give the appropriate combination of tablets. To ensure adequate absorption, always administer Sentinel to dogs immediately after or in conjunction with a normal meal. Heartworm testing should be performed prior to the start of prevention therapy. If your pet is off Sentinel for 6 months or less, re-start the medication and test after 6 months since microfilaria, that take 6 months to mature, will result in a positive test result. Store Sentinel in a dry place at controlled room temperature, between 59-77F (15-25 C). Do not remove the tablet from its wrapper until ready to give the medicine. Keep this medication away from children and pets. Consult your veterinarian for pregnant or lactating dogs.

What are the possible side effects of Sentinel?

Side effects of Sentinel are rare although some pets may exhibit vomiting, depression, drowsiness, itching, hives, loss of appetite, diarrhea, or seizures, hypersalivation, and weakness. If these or other symptoms develop contact your veterinarian.

What happens if I miss giving a dose of Sentinel?

If a dose is missed and a 30-day interval between dosing is exceeded, administer Sentinel immediately and resume the monthly dosing schedule. If Sentinel replaces daily diethylcarbamazine (DEC) for heartworm prevention, the first dose must be given within 30 days after the last dose of DEC.

What happens if I overdose my pet on Sentinel?

Contact your veterinarian immediately.

What should I avoid while giving Sentinel to my pet?

Because humans can contract hookworms and roundworms from pets, it is important to maintain good personal hygiene. It is also important to eliminate fleas on your pet and in the household.

What other drugs will affect Sentinel?

While Sentinel is safe to use in dogs at risk for MDRI-allele mutation (Australian Shepherds, Collies, Shelties, etc.), unless tested normal, caution is advised if your pet is also being given amiodarone (Cordarone), azole antifungals such as ketoconazole, carvedilol (Coreg), cyclosporine (Atopica), diltiazem (Cardizem), erythromycin (Ery-Tabs) or clarithromycin (Biaxin), quinidine, spironolactone (Aldactone), tamoxifen, and verapamil (Calan). Do not give Sentinel to your pet if already giving an alternate heartworm medication.

Sentinel Directions:

  • Give Sentinel Flavor Tabs once a month on the same day of each month year-round.
  • Sentinel Flavor Tabs is for use in dogs only. Do not give to cats.
  • Watch your dog closely following dosing to be sure the entire dose has been swallowed. If it is not completely swallowed, give one more full recommended dose as soon as possible.
  • To ensure adequate absorption, always administer Sentinel to dogs immediately after or in conjunction with a normal meal.
  • Sentinel has no effect on adult fleas, but controls flea populations by breaking the flea life cycle at the egg stage.
  • To speed control of flea infestation, products that kill adult fleas like Capstar Flea Treatment Tablets may be used temporarily with Sentinel depending on the severity of the infestation.
  • Treatment may begin at any time of the year.
  • It is important to treat all dogs in the household for fleas. Cats in the same household should be treated with approved products for heartworm prevention for cats.
Tip:

Do not remove Sentinel from its wrapper until ready to give to your pet.

Sentinel Dosage for Dogs/puppies: (4+ weeks of age, weighing 2+ lbs)

Dogs/puppies: (4+ weeks of age, weighing 2+ lbs)
WeightDosage
2-10 lbsGive 1 Flavor Tab every month (Brown Box)
11-25 lbsGive 1 Flavor Tab every month (Green Box)
26-50 lbsGive 1 Flavor Tab every month (Yellow Box)
51-100 lbsGive 1 Flavor Tab every month (White Box)
Over 100 lbsGive combination of Flavor Tabs based on weight
Sentinel Dosage for Cats:
Cats
Do not use!
Sentinel Dosage for Horses:
Horses
Do not use!

Storage:

Should be stored at room temperature between 59° and 77° F.

Sentinel for Dogs Ingredients:

Sentinel Brown for Dogs 2-10 lbs:
Active Ingredient (per tablet)Amount
Milbemycin Oxime2.3 mg
Lufenuron46 mg
Sentinel Green for Dogs 11-25 lbs:
Active Ingredient (per tablet)Amount
Milbemycin Oxime5.75 mg
Lufenuron115 mg
Sentinel Yellow for Dogs 26-50 lbs:
Active Ingredient (per tablet)Amount
Milbemycin Oxime11.5 mg
Lufenuron230 mg
Sentinel White for Dogs 51-100 lbs:
Active Ingredient (per tablet)Amount
Milbemycin Oxime23 mg
Lufenuron460 mg

What is Sentinel?

Sentinel is the only monthly oral preventive that guards against heartworms, adult roundworms, adult hookworms, whipworms, and prevents the development of flea eggs. Sentinel requires a prescription from your veterinarian.

For:

Dogs and Puppies (4+ weeks of age, weighing 2+ lbs)

Benefits:

  • Comes in palatable flavored tabs
  • Easy to administer just once a month

How does Sentinel work?

Milbemycin oxime eliminates the tissue stage of heartworm larvae and the adult stage of hookworm, roundworm, and whipworm infestations. Lufenuron, the other active ingredient, is an insect development inhibitor that breaks the flea life cycle by inhibiting egg development. Lufenuron prevents most flea eggs from hatching or maturing into adults and thus prevents and controls flea populations by breaking the life cycle.

Cautions:

Side effects are rare, though some pets may exhibit vomiting, depression, drowsiness, itching, hives, loss of appetite, diarrhea, or seizures, hypersalivation, and weakness. If these or other symptoms develop contact your veterinarian. It's important to maintain good personal hygiene, since humans can contract hookworms and roundworms. It's also important to eliminate fleas and to not feed your pet rodents or uncooked meat or fish. To prevent re-infection, clean up stools on a daily basis. Consult your veterinarian for pregnant or lactating dogs.

Brand Name:

Sentinel (Virbac)

Generic Name:

Milbemycin Oxime (mil-beh-my-sin ox-eem) and Lufenuron (lew-fen-your-on)

What is the most important information I should know about Sentinel?

Sentinel is a prescription medication FDA-approved for use in dogs. Sentinel is available as artificial beef flavored (derived from pork and soy protein) chewable tablets. This medication should be given once a month year-round.

What should I discuss with my veterinarian before giving Sentinel to my pet?

Tell your veterinarian if your pet has ever had an allergic reaction to the medication.

How should Sentinel be given?

Give Sentinel exactly as directed by your veterinarian. If you do not understand the directions ask your pharmacist or veterinarian to explain them to you. The usual dose of Sentinel for dogs 2 to 10 pounds is 1 Flavor Tab every month (Brown Box), 11 to 25 pounds is 1 Flavor Tab every month (Green Box), 26 to 50 pounds is 1 Flavor Tab every month (Yellow Box) and 51 to 100 pounds is 1 Flavor Tab every month (White Box). For dogs over 100 pounds give the appropriate combination of tablets. To ensure adequate absorption, always administer Sentinel to dogs immediately after or in conjunction with a normal meal. Heartworm testing should be performed prior to the start of prevention therapy. If your pet is off Sentinel for 6 months or less, re-start the medication and test after 6 months since microfilaria, that take 6 months to mature, will result in a positive test result. Store Sentinel in a dry place at controlled room temperature, between 59-77F (15-25 C). Do not remove the tablet from its wrapper until ready to give the medicine. Keep this medication away from children and pets. Consult your veterinarian for pregnant or lactating dogs.

What are the possible side effects of Sentinel?

Side effects of Sentinel are rare although some pets may exhibit vomiting, depression, drowsiness, itching, hives, loss of appetite, diarrhea, or seizures, hypersalivation, and weakness. If these or other symptoms develop contact your veterinarian.

What happens if I miss giving a dose of Sentinel?

If a dose is missed and a 30-day interval between dosing is exceeded, administer Sentinel immediately and resume the monthly dosing schedule. If Sentinel replaces daily diethylcarbamazine (DEC) for heartworm prevention, the first dose must be given within 30 days after the last dose of DEC.

What happens if I overdose my pet on Sentinel?

Contact your veterinarian immediately.

What should I avoid while giving Sentinel to my pet?

Because humans can contract hookworms and roundworms from pets, it is important to maintain good personal hygiene. It is also important to eliminate fleas on your pet and in the household.

What other drugs will affect Sentinel?

While Sentinel is safe to use in dogs at risk for MDRI-allele mutation (Australian Shepherds, Collies, Shelties, etc.), unless tested normal, caution is advised if your pet is also being given amiodarone (Cordarone), azole antifungals such as ketoconazole, carvedilol (Coreg), cyclosporine (Atopica), diltiazem (Cardizem), erythromycin (Ery-Tabs) or clarithromycin (Biaxin), quinidine, spironolactone (Aldactone), tamoxifen, and verapamil (Calan). Do not give Sentinel to your pet if already giving an alternate heartworm medication.

Sentinel Directions:

  • Give Sentinel Flavor Tabs once a month on the same day of each month year-round.
  • Sentinel Flavor Tabs is for use in dogs only. Do not give to cats.
  • Watch your dog closely following dosing to be sure the entire dose has been swallowed. If it is not completely swallowed, give one more full recommended dose as soon as possible.
  • To ensure adequate absorption, always administer Sentinel to dogs immediately after or in conjunction with a normal meal.
  • Sentinel has no effect on adult fleas, but controls flea populations by breaking the flea life cycle at the egg stage.
  • To speed control of flea infestation, products that kill adult fleas like Capstar Flea Treatment Tablets may be used temporarily with Sentinel depending on the severity of the infestation.
  • Treatment may begin at any time of the year.
  • It is important to treat all dogs in the household for fleas. Cats in the same household should be treated with approved products for heartworm prevention for cats.
Tip:

Do not remove Sentinel from its wrapper until ready to give to your pet.

Sentinel Dosage for Dogs/puppies: (4+ weeks of age, weighing 2+ lbs)

Dogs/puppies: (4+ weeks of age, weighing 2+ lbs)
WeightDosage
2-10 lbsGive 1 Flavor Tab every month (Brown Box)
11-25 lbsGive 1 Flavor Tab every month (Green Box)
26-50 lbsGive 1 Flavor Tab every month (Yellow Box)
51-100 lbsGive 1 Flavor Tab every month (White Box)
Over 100 lbsGive combination of Flavor Tabs based on weight
Sentinel Dosage for Cats:
Cats
Do not use!
Sentinel Dosage for Horses:
Horses
Do not use!

Storage:

Should be stored at room temperature between 59° and 77° F.

Sentinel for Dogs Ingredients:

Sentinel Brown for Dogs 2-10 lbs:
Active Ingredient (per tablet)Amount
Milbemycin Oxime2.3 mg
Lufenuron46 mg
Sentinel Green for Dogs 11-25 lbs:
Active Ingredient (per tablet)Amount
Milbemycin Oxime5.75 mg
Lufenuron115 mg
Sentinel Yellow for Dogs 26-50 lbs:
Active Ingredient (per tablet)Amount
Milbemycin Oxime11.5 mg
Lufenuron230 mg
Sentinel White for Dogs 51-100 lbs:
Active Ingredient (per tablet)Amount
Milbemycin Oxime23 mg
Lufenuron460 mg