Sentinel Spectrum for Dogs Reviews

The Sentinel Spectrum for Dogs is an excellent flea and tick preventive product. The manufacturer recommends that this product be given to dogs on a monthly basis if your dog enters a high-risk area for these pests. Also, if the dog travels to a region that is known to have these pests, then this product should be administered prior to travel.

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There are some warnings and precautions regarding the use of this product. The first precaution is that puppies under the age of 6 weeks should not be given this product. The second is that pregnant or nursing dogs should not use this treatment, as it may cause harm to the mother or puppies.

There are some side effects associated with the use of this medication in dogs. Consult your veterinarian if these symptoms occur: vomiting, loss of appetite, lethargy and diarrhea.

One of the most common questions that pet owners have about using this product is whether or not it can be used on cats. Unfortunately, Sentinel Spectrum for Dogs cannot be used on felines.


Reviewers say that this product works really well and they have not had any problems with it. They agree that they have found no side effects from using this product on their dogs, which is something that they greatly appreciate. They also say that their dogs seem to like the taste of the pills.

Some people say that it didn’t work at all on their dogs. They claim that after giving their dogs this medication, they still had fleas on them. They also assert that the medicine didn’t kill any of the ticks or prevent heartworms from infecting their dogs.

While there are many conflicting reports about whether this product works or not. Sentinel Spectrum for Dogs reviews are generally positive, but it’s important to know that the product is not without its flaws.

If your dog has allergies or sensitivities to other drugs this product might be a good choice since it is very gentle on the stomachs of animals which can be a problem with some other medicines.

“I have used SENTINEL for many years for my dog who has allergies to fleas/ticks and I think it works great! My vet recommends it highly as well because it also helps to keep the heartworm out of the system. Not only is it easy every month (no messy liquids or powders), but it also saves me money in the long run by not having to buy lots of expensive treats that claim to help with allergies or heartworm prevention. I give SENTINEL five stars!”

“I have been using Sentinel for my dogs for 3 years. I have never had a flea or tick problem with the dogs on this medication. It does not cause vomiting in dogs or inappropriate urination or excessive thirst.”

“I have a labrador named Jake who is about to turn 2. I have used Sentinel Spectrum since he was 8 weeks old and it has kept him free of fleas, ticks and heartworm.”

“I bought this for my Sheltie and it seems to work great. I like the fact that I don’t have to give her a pill every day as it is an oral solution. I have had it for about 4 months and have already noticed that she is not scratching as much in the springtime when the fleas are out. ”

“I have been using Sentinel Spectrum for about 3 months, and I have to say that I am 100% satisfied. It has done wonders for my little dog, who had severe skin issues from the flea and tick medicine Frontline Plus. He was constantly chewing his paws and scratching himself raw, but after he started taking Sentinel Spectrum, he stopped doing that completely! I would recommend this pill to anyone whose dog is having any kind of skin issues as a result of their flea and/or tick medication. Sentinel Spectrum is a superior product and my pup is healthy because of it!”


“This product does not work as advertised. I followed the instructions as directed for my dog and saw no results. He still had fleas. I contacted customer service to return this item and was told it was after the 30 days so they could not accept the return or give me a credit.”

“This product does not work at all, I would never recommend it to anyone and I am very disappointed that I wasted my money on it. What really got me was the fact that my dog ended up getting roundworms from being infested with fleas so badly and now he has to take expensive pills for the next month to kill them off. Don’t waste your money… Find something else to get rid of fleas.”

“I bought this to get rid of my dog’s fleas. I followed the instructions and it did not work at all. I called the company and they said to wait a little longer. The dog got so many more fleas that he was scratching his belly raw. I later found out he had roundworms because of the fleas. ”

“I am extremely disappointed in this product. I bought it because I thought it would kill fleas on contact, but it did not. The flea collars are no better, I had to take my dog to the vet and spend $200 on a different product to get rid of the fleas. Save your money and buy something else!”


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Hannah Elizabeth is an English animal behavior author, having written for several online publications. With a degree in Animal Behaviour and over a decade of practical animal husbandry experience, Hannah's articles cover everything from pet care to wildlife conservation. When she isn't creating content for blog posts, Hannah enjoys long walks with her Rottweiler cross Senna, reading fantasy novels and breeding aquarium shrimp.

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