Do you have a question about SENTRY® Fiproguard®? Use these frequently asked questions as a guide. Or contact us for more information.

My dog is on heartworm medication. Will these products react to it?

We suggest that you check with your veterinarian, most flea and tick products are ok to use with heartworm only medications.

How does SENTRY Fiproguard Plus spread over a pet’s body?

SENTRY Fiproguard migrates through the oil glands in the skin of the dog or cat. It then delivers continuously for one month through the hair follicle and skin.

How long will it take for the product to begin to work?

The product should begin to kill fleas within about 12 hours of contact with your pet. It may take closer to 48 hours to begin to kill ticks.

What types of ticks will the product kill?

This product will kill brown dog ticks, American dog ticks and lone star ticks, and deer ticks, which can transmit Lyme disease.

Can I pet my dog or cat after I have applied the product?

Yes. You are safe to pet and play with your pet after the product has been applied. It will take about 24 hours for the product to spread and dry on your pet, so if you handle and/or play.

Can I use the dog product on my pet rabbit, guinea pig, ferret, etc.?

No. We do not recommend using our flea and tick products on any animal other than the one listed on the label.

I am concerned about all the warning and precautionary statements on your product label. Is this product safe to use?

Yes. When used as directed, this product has been evaluated as safe and effective. As required by the EPA, all flea and tick products are tested for safety and efficacy before they are available for sale. The EPA has approved this product as safe and effective. The EPA regulates all pesticidal products, and they mandate that each of the precautionary statements that you are reading appear on the products. The statements are intended to inform the consumer how to safely use the products and what to do in the event an issue occurs with the product. In almost all instances, you will not experience issues with the product if you are following labeled instructions.

How old does my dog need to be to use this product?

This product is for use in dogs at least 8 weeks of age and older.

My pet is younger than the recommended age on the product packaging, but he is infested with fleas. Can I use this product anyway? What can I do?

No. We do not recommend using our product if the animal is younger than 8 weeks, the specified age on the package. We would suggest contacting your veterinarian for a suitable product for your pet. You can try using a flea comb to temporarily rid your pet from the fleas, and if your animal is old enough to be bathed you can use a mild, non-insecticidal shampoo and water to wash the fleas away. This will not prevent the animal from becoming infested again, but it will provide temporary relief. You should also change and launder the animal’s bedding regularly to eliminate flea eggs and larvae, especially right after using the flea comb or bathing.

Why can’t I use this product on a puppy less than 8 weeks of age?

This product was not evaluated on puppies less than 8 weeks of age and therefore it is not approved for use on such young puppies.