Sentry Fiproguard Plus Dosage Calculator For Dogs
Dogs only — enter weight + age for safe dosage estimation
• Minimum age: 8 weeks
• Minimum weight: 4 lbs (1.81 kg)
• Do not split or combine tubes
• Apply once every 30 days only
• Over 132 lbs (59.87 kg): vet consultation required
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When it comes to flea, tick and chewing lice control, Sentry Fiproguard Plus Dosage For dogs is a critical discussion for dog owners seeking safe, effective and long-lasting results. A fast acting waterproof spot-on treatment, formulated with fipronil and (S)-methoprene (insect growth regulator) that kills adult parasites as well as flea eggs and larvae to completely break the flea life cycle and prevent reinfestation for up to 12 weeks.
Sentry Fiproguard Plus for dogs is a broad spectrum medication that treats fleas, flea eggs, flea larvae, ticks (including ticks that can transmit Lyme disease) and chewing lice for dogs 8 weeks of age or older (and at least 4 lbs). It also helps to control mites which can lead to sarcoptic mange, providing all round protection to your dog’s skin and health.
Its fast acting and long-lasting formula provides continuous protection for up to 30 days with each application, even after bathing, swimming or sun exposure. This is because it helps prevent infestations before they occur, as well as killing current infestations, by eliminating several life stages of the parasites.
Sentry Fiproguard Plus dose for dogs is also safe to use in breeding, pregnant or lactating dogs and is a great choice for many of these types of dogs as a parasitic prevention. It comes in various strengths for different weight classes; it’s important to select the correct strength for application, particularly if applying it on dogs in the 88-132 lb class, for optimal safety and effectiveness.
Knowing the proper dosage and method of use is important to get the most protection without underdosing or overdosing. Throughout this article, we will offer a breakdown on Sentry Fiproguard Plus dosage for dogs, weight-based instructions, application procedure, and safety tips.
Disclaimer: This guide is for informational purposes only and is not a substitute for professional veterinary advice.
Always consult your veterinarian before giving Sentry Fiproguard Plus or any medication to your dog.
Key Takeaways
- Sentry Fiproguard Plus dosage for dogs is a quick acting, waterproof topical product for use on dogs that offers long-lasting protection against fleas, ticks and chewing lice.
- It’s made with two active ingredients, fipronil and (S)-methoprene, that do more than just kill adult parasites; they also help prevent the flea life cycle by killing the flea eggs and larvae.
- A single application gives up to 30 days of protection and flea life cycle control can last as long as 12 weeks.
- Promotes prevention of reinfestation and also kills ticks that can transmit Lyme disease which enhances overall parasite protection.
- For dogs and puppies 8 weeks and older, 4 lbs or more, with dosage ranges depending on body weight (up to 88-132 lb).
- This works even after contact with water, bathing or the sun, and thus is safe for active dogs.
- Safe to use in breeding, pregnant and lactating dogs if used according to instructions.
- To ensure maximum safety and effectiveness, the correct weight-based dose and monthly application is essential.
Sentry Fiproguard Plus Dosage Chart For Dogs
| Dog Weight Category | Weight (lbs) | Weight (kg) | Applicator Volume | Fipronil | (S)-Methoprene |
|---|---|---|---|---|---|
| Toy | 4 – 22 lbs | 1.81 – 9.98 kg | 0.67 mL (0.023 oz) | 65.66 mg | 58.96 mg |
| Medium | 23 – 44 lbs | 10.43 – 19.96 kg | 1.34 mL (0.045 oz) | 131.32 mg | 117.92 mg |
| Large | 45 – 88 lbs | 20.41 – 39.92 kg | 2.68 mL (0.091 oz) | 262.64 mg | 235.84 mg |
| Extra Large | 89 – 132 lbs | 40.37 – 59.87 kg | 4.02 mL (0.136 oz) | 393.96 mg | 353.76 mg |
Key Safety Rules
- Minimum age: 8 weeks
- Minimum weight: 4 lbs (1.81 kg)
- Do not split or combine tubes
- Apply once every 30 days only
- Dogs over 132 lbs (59.87 kg): veterinary consultation required
What Is Sentry FiproGuard Plus for Dogs?

Sentry FiproGuard Plus for Dogs is a rapid, long–lasting topical squeeze–on flea and tick control designed to protect dogs and puppies 8 weeks of age and older. It has two active ingredients, fipronil and (S)-methoprene, which act together to kill and control fleas, flea eggs, flea larvae and ticks, and control chewing lice to help prevent future infestations.
The formula is effective against adult fleas, flea eggs, flea larvae, ticks, and chewing lice for up to 30 days and helps to break the flea life cycle by killing flea eggs and larvae up to 12 weeks to reduce the risk of reinfestation. It also will help to kill ticks that can carry Lyme disease, offering extra protection for the dogs and the family.
Sentry FiproGuard Plus is waterproof and bath-proof, water-immersion proof, and sunproof. Generally it is well tolerated, has less potential side effects, overdose or drug interactions and can be purchased over the counter. Safe for use when directed in breeding, pregnant and lactating dogs.
It comes in a range of different weight-specific formulas and application packs which includes puppies more than 4 pounds, and can be used on dogs up to 132 pounds. Active ingredients of Sentry FiproGuard Plus are the same as FRONTLINE® Plus, and it’s an economical choice for complete flea and tick control. Strictly for dogs and not to be used for cats.
How Are Sentry Topical Products for Fleas and Ticks Used?
Sentry topical flea and tick products such as Sentry FiproGuard, Sentry FiproGuard Plus, Sentry PurrScriptions Plus and Sentry PurrScriptions for Indoor Cats are applied to the animals skin (between the shoulder blades) once a month. To ensure safe application, wear gloves when applying the product; and don’t bathe the pet for 48 hours after application to make the product work.
For cats that wear the Sentry PurrScriptions Flea and Tick Collar, it can be left on the cat at all times, and lasts for up to 3 months.
Always apply Sentry flea and tick products as directed by your veterinarian, tell your veterinarian if your pet has been treated with any other medication, vitamins, supplements or herbal products and never discontinue or alter an established pet medication without consulting your veterinarian.
What Are the Benefits of Sentry Topical Products for Fleas and Ticks?

Sentry topical flea and tick products are highly effective, long-lasting flea and tick control products that keep dogs and cats comfortable and healthy.
Key Benefits
- Kills Multiple Pests: Kills fleas, flea eggs, flea larvae, ticks and chewing lice.
- Interrupts Flea Life Cycle, Kills Flea Eggs and Larvae, and Prevents Reinfestation for up to 12 weeks.
- Effective: Begins to work quickly to help stop flea and tick infestations.
- Effectiveness that lasts for a long time: Most products last up to a month after application.
- Lyme Disease Protection: Kills ticks that could carry Lyme disease.
- Waterproof Formula: Stands up to bathing, swimming and water exposure.
- FDA Approved Ingredients: Contains active ingredients that are approved and tolerated well by dogs and cats.
- Safety: They are generally safe for use when applied correctly.
- Safe for Breeding and Nursing Pets: Can use on breeding, pregnant and lactating animals.
- Convenient Packaging: Three dose and 6 dose application packages.
- Suitable for Young Dogs: Some formulas are approved for puppies 8 weeks and older and more than 4lbs.
- All-natural flea and tick products are available for cat owners that would prefer to find an alternative pest-control solution.
In sum, Sentry topicals are fast acting, long lasting, effective against flea life cycle, waterproof, and effective against multiple parasites to help protect pets from external parasites including fleas and ticks.
Do Sentry Topical Products Have Warnings or Side Effects?
While Sentry topical flea and tick products are well tolerated, there are important warnings, precautions and possible side effects that pet owners should be aware of prior to use.
Important Warnings
- Avoid use of Sentry topical products on pets known to be allergic to any ingredient in the product.
- Never use on rabbits or other small mammals.
- Only use where specified on the label.
- Dog formulas should not be used on cats.
- Dogs: Use only in dogs 8 wks of age and older and in accordance to weight.
- Do not allow children or animals to come in contact with the product.
- Always read and comply with all directions and warnings on the product label.
Possible Side Effects
- Rarely it may cause side effects if used as directed.
- The application site may show some redness, irritation or sensitivity in some pets.
- Usually the reaction is confined to the area where the application occurred and will fade away in a couple days without treatment.
- If irritation increases, spreads, doesn’t resolve or seems to be allergic-type reactions, consult your veterinarian.
Preventing Accidental Ingestion
- Licking of treated area is not allowed for pets.
- Extra care should be taken with cats that groom themselves or other pets.
- If a pet eats part of the product there can be excessive drooling or foaming.
- Offer food if ingested and keep an eye on them.
- If your pet is acting differently or is ill, contact your veterinarian immediately.
If you have any concerns about your pet, it’s best to consult your vet.
- If you think your pet is having a severe side effect or allergic reaction, call your veterinarian immediately.
- Call an emergency veterinary hospital or animal poison control center if your veterinarian’s office is closed, but be aware that there may be an emergency consultation fee.
Sentry topical products have a low incidence of side effects reported overall, with the most common being mild skin irritation. Safe and effective flea/tick protection can be achieved by following the instructions on the label, using the right product for your pet, and making sure your pet doesn’t lick the application area.
Do Sentry Topical Products Interact With Other Medicines?
Sentry topical flea and tick products are generally not toxic to dogs and cats when used in combination with other products. Most pets will not have medication related issues with these products. Like any medication, however, combining several treatments could alter the effects of some of the medications or lead to side effects.
Summary of Points on Drug Interactions
- Generally, Sentry topical products are not known to interfere with any other medication.
- Certain combinations of medicines sometimes affect the effectiveness of the medicine.
- Some animals may be more likely to have side effects or adverse reactions when given multiple products.
- Please let your veterinarian know if your pet is already on any other products prior to beginning a Sentry topical treatment.
Please inform your veterinarian of any symptoms of
- Prescription medications
- Over-the-counter medicines
- Vitamin and mineral supplements
- Herbal products
- Nutritional supplements
- Any other flea, tick or parasite control product
It is important to provide your veterinarian with your pet’s entire medication and supplement history to ensure that your pet uses Sentry topical products safely and effectively, and reduce the risk of potential drug interactions.
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FAQs
How will Sentry FiproGuard Plus dose help my dog?
Sentry FiproGuard Plus contains a combination of fipronil and (S)-methoprene that is effective against fleas, flea eggs, flea larvae, chewing lice and ticks. The treatment breaks the flea life cycle and prevents re-infestation and also kills ticks which transmit Lyme disease. Effective control for up to 30 days with one application.
What is the rate of Sentry FiproGuard Plus?
Give the entire contents of one tube every 30 days based on your dog’s weight. Avoid using more than once a month, and don’t use more than one tube at a time.
Does Sentry FiproGuard Plus repel water?
Yes. After the product has dried and been absorbed it is waterproof and effective after bathing, swimming or exposure to rain. Your dog shouldn’t get wet for at least 24 hours following application.
Does Can Sentry FiproGuard Plus for dogs work on all dogs?
No. Sentry FiproGuard Plus is recommended for use on dogs 8 weeks and older and should only be used in the weight range indicated on the label. Avoid using on cats, puppies under 8 weeks or dogs that are under the minimum weight requirement for the product chosen.
How to properly use Sentry FiproGuard Plus?
Take one tube out of the package and carefully cut the end off with scissors with the tube standing on end. Part the hair between the shoulder blades and rub in the entire contents from the shoulder blades to the middle of the back in a few spots—usually 3 to 4. Avoid applying to tail.
What are some precautions I need to take during application?
Do not touch the skin, eyes or clothes during treatments. After using the product wash hands thoroughly with soap and water. Do not allow children or other pets to contact treated dog until treated area is dry.
Does my dog need to be dry prior to treatment?
Yes. Your dog should be dry before you apply it, and dry for at least 24 hours after you apply, for maximum effectiveness.
Are other flea or tick products okay if used concurrently?
Applying more than one pesticide product at the same time may cause greater risks of adverse reactions. Do not use Sentry FiproGuard Plus with other flea, tick or parasite-control products without consulting your veterinarian.
Can Sentry FiproGuard Plus be used in pregnant or nursing bitch-dogs?
DO NOT use the product on pregnant, nursing aged, debilitated or medicated dogs unless you have consulted your veterinarian and determined it safe for your pet’s condition.
If I forget to take a dose, what should I do?
Take missed dose as soon as possible. Once the dose is made, start a new 30-day treatment period from the new date of application.
Do pet owners have any safety concerns?
Yes. Keep Sentry FiproGuard Plus out of the reach of children. Do not apply to skin, eyes or clothing; wash hands thoroughly after treatment!
How should I store Sentry FiproGuard Plus?
Keep in the original package at room temperature, out of direct light and moisture. Don’t put it in the refrigerator and don’t open each tube until you are ready to use it.
Do I need to watch my dog after they get the treatment?
Yes. Watch your dog post-treatment for any indications of irritation, discomfort or unusual behavior. If there is any unusual reaction that develops or persists, contact your veterinarian.
Final Thoughts
Sentry FiproGuard Plus Dosage For dogs is a fast acting, long-lasting topical treatment for dogs that provides protection against fleas, flea eggs, larvae, ticks and chewing lice. It contains fipronil and (S)-methoprene, which not only kill off existing pests, but also help to break the flea cycle, thereby minimizing the risk of future infestations. Waterproof, it can be applied once a month and it works against ticks that could carry Lyme disease, making it a convenient and reliable way to protect many dogs from parasites.
Always use the correct product, depending on your dog’s age and weight; read all instructions on label carefully and apply the treatment at the recommended 30 day intervals for best results. Consuming the appropriate amount of medication and watching your dog closely following application and contacting your veterinarian if any health problems occur can help to ensure safe and effective use. If applied correctly, Sentry FiproGuard Plus can be essential in keeping your dog comfortable, healthy and protected from common external parasites all year round.







