Sentry Fiproguard Plus for Dogs Flea and Tick Prevention - 6 Month

Our review of SENTRY Fiproguard Plus finds it best for dog owners seeking an affordable, vet-quality topical that covers fleas, flea eggs, larvae and multiple tick species on large dogs. The single biggest reason to buy is the combination of the two active ingredients, fipronil and (s)-methoprene, which work together to break the flea life cycle and provide up to 30 days of protection per application. Practical packaging with six 0.136 fl. oz. applicators delivers a six month, waterproof supply that is easy to apply between the shoulder blades.

Key Features

• Kills fleas and life stages: The formula targets adult fleas as well as flea eggs and larvae so infestations are interrupted at multiple points in the lifecycle.
• Vet quality active ingredients: Contains fipronil and (s)-methoprene, the same actives used in premium brands, for reliable pest control.
• Tick protection: Labeled to kill common dog ticks including brown dog, American dog, lone star and deer ticks for monthly prevention.
• Six month supply: Includes six 0.136 fl. oz. applicators to treat a dog monthly for six months without repurchasing immediately.
• Waterproof topical: The squeeze-on treatment bonds to the skin and remains effective after brief water exposure when dry before swimming.

Who It's For

This product suits owners of large dogs in the 89-132 pound range who want an affordable alternative to higher-priced spot-ons while maintaining the same active ingredients used by veterinarians. It is particularly useful for households managing recurring flea problems who need a multi-month supply with straightforward topical application.

Owners of very small dogs, dogs with known sensitivity to topical treatments, or those who require chewable systemic products should look elsewhere. Also consult a veterinarian before use on pregnant or nursing dogs, or if the dog has a history of skin reactions to flea treatments.

Pros & Cons

Pros

• Cost-effective six month supply that matches the active ingredients of premium brands.
• Breaks the flea life cycle by killing eggs and larvae as well as adult fleas.
• Covers multiple tick species, giving broad parasite protection with one monthly application.

Cons

• Some users report mild skin irritation or dogs licking the application site, so monitor pets after first use.
• Duration reports vary by customer; some say it may not always last a full 30 days between applications.

Specifications

Our Verdict

SENTRY Fiproguard Plus is a practical, budget-friendly choice for owners of large dogs who want vet-quality actives and a full six month supply in one purchase. It effectively interrupts the flea life cycle and covers common ticks, offering solid value - but monitor for occasional skin sensitivity and be aware that duration can vary by pet.

Frequently Asked Questions

How often should I apply this topical?
Apply once every 30 days directly to dry skin between the shoulder blades for continuous protection.

Will it control ticks as well as fleas?
Yes, the formula is labeled to kill several tick species including brown dog, American dog, lone star and deer ticks.

Is this safe for a dog that licks the application site?
Some dogs lick or bite the area after application; monitor the pet and consult a veterinarian if excessive licking or skin irritation occurs.