Sentinel for dogs at risk of parasite infection

Need to learn about Sentinel for dogs? This page contains vital information such as the dosage, side effects, uses of the drug and other important details.

Sentinel is an oral preventative medicine which is effective in both the prevention of common parasites including hookworm, roundworm, heartworm and whipworm, and also in the control of flea infestations. The medicine contains two main active ingredients, the first, “milbemycin oxime” kills heartworm larvae and eliminates the adult stage of hookworm, roundworm and whipworm. The second active ingredient is lufenuron, a drug which inhibits the development of flea eggs and prevents hatchlings from maturing. Sentinel Spectrum, which also contains praziquantel, is also effective in the treatment of tapeworm. Sentinel is often considered to be the follow-up to Interceptor for dogs, another milbemycin oxime based medicine which was dicontinued by Novartis. All Sentinel products are FDA approved and available by prescription from veterinary professionals.

Sentinel dosage for dogs

Sentinel products come in different formulations labelled for the size of your dog. For example, Sentinel Spectrum comes in four different versions, 2 – 8 lbs, 8.1 – 25 lbs, 25.1 – 50 lbs and 50.1 – 100 lbs. You should pick the one which corresponds to the weight of your own dog. Sentinel Flavor Tabs also comes in four separate weight categories but the numbers are slightly different so check the label before purchase. Sentinel only needs to be administered once a month.

Higher doses of the medicine may be used to control mange.

Is Sentinel safe for dogs?

Sentinel for dogs is FDA approved for use in dogs and commonly prescribed by vets. If you are using it for its labelled use the risk is minimal considering the medicine is safely used at much higher doses for treating mange off-label. You should seek approval and prescription from your vet before administering in the medication. In rare cases your dog may experience side effects, more details are included further down the page.

Safety precautions

  • Consider avoiding use of this medicine in pregnant or lactating pups
  • Follow your vet’s advice on hygiene to avoid becoming infected with the parasites yourself
  • Keep an eye on your dog after administering the drug and notify the vet if any serious side effects develop
  • Test your dog for heartworm prior to use as treated heartworm cases may result in side effects

The main safety concern when using Sentinel is the potential of the owner becoming infected with the parasites, or the dog becoming re-infected. This is easy to avoid by following the correct hygiene procedures outlined by your vet. If your dog develops adverse side effects you should notify the vet. Serious side effects are typically a result of a bad reaction to dying/dead parasites, not to the drug itself, and may result in an emergency visit to the vet. Sentinel is not for human consumption so store the medicine well out of reach from children.

Uses of Sentinel for dogs

Sentinel is an effective preventative medication used for treating:

  • Parasite infections
  • Fleas

Used just once a month Sentinel can effectively safeguard your pet from almost all common parasites with little risk of side effects.

Side effects of giving Sentinel to your dog

Side effects of Sentinel for dogs are uncommon. Rarely your dog may develop side effects such as depression, fatigue, itching, vomiting, hives, diarrhea, loss of appetite and seizures. If your pet appears to be displaying any side effect symptoms you should notify the vet for advice.

A small percentage of dogs treated for heartworm may develop neurologic, skin and/or digestive side effects. Also dogs may experience side effects as a result of dead parasites as they are absorbed into the dog’s body. If your dog ever appears to fall seriously ill whilst taking Sentinel you should seek emergency veterinary attention.

Heartgard for the treatment of canine parasites
Information about Sentinel

sentinel for dogs