PetLock® Plus for Dogs


Contains the same active ingredients as Frontline® Plus for Dogs.


PetLock® Plus is a monthly spot on treatment and preventative that kills fleas, flea eggs and larvae, chewing lice, mosquitos​ and ​ticks​ and aids in the control of mites.

PetLock® Plus for Dogs has the same active ingredients as  Frontline® Plus for Dogs, but sells for a fraction of the cost. PetLock® Plus is fast-acting, long-lasting, waterproof, and easy to use. Apply monthly.


Frequency of Application
When used monthly, PetLock® Plus for Dogs breaks the flea life cycle and controls fleas, flea eggs, and flea larvae for up to three months. Although PetLock® Plus for Dogs can control fleas for up to three months, if there is a high risk of re-infestation or if the dog has fleas which may cause flea allergy dermatitis, apply this product once a month.
PetLock® Plus for Dogs kills larva, nymph, and adult ticks that may transmit Lyme disease, Rocky Mountain Spotted Fever, ehrlichiosis, babesiosis, and anaplasmosis for at least one month. For best control of ticks, apply once every month.
Chewing Lice
PetLock® Plus for Dogs kills chewing lice for at least one month. For best control of chewing lice, apply once every month.
Sarcoptic Mites
Applied once a month, PetLock® Plus for Dogs aids in the control of sarcoptic mange mite infestations.
Apply PetLock® Plus every 30 days.
Directions for use

Do not allow your dog to ingest this product. Do not apply to dogs weighing less than 6 pounds and less than 8 weeks old.

PetLock™ Plus For Dogs contains the active ingredients fipronil and (S)-methoprene that effectively target fleas, ticks, and chewing lice. PetLock™ Plus For Dogs is fast acting, long-lasting, waterproof, and easy to use. PetLock™ Plus For Dogs remains effective even after bathing, water immersion, or exposure to sunlight. PetLock™ Plus For Dogs can also be used on breeding, pregnant, and lactating bitches.

To kill adult fleas, flea eggs and larva, chewing lice, all stages of Brown dog ticks, American dog ticks, Lone Star ticks and Deer ticks (which may carry Lyme disease), and to aid in control of sarcoptic mange mites, apply this product ONLY to dogs and puppies (8 weeks or older) as follows.

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