Frontline Complications in Dogs

Frontline and Frontline Plus are popular medications prescribed to cure and prevent flea and tick infestations in dogs and cats. Frontline is a very effective and well-rated product that has proven successful in killing fleas and ticks. However, studies have shown that there are a few Frontline complications in dogs that pet owners using this product should be aware of.

  1. Ingestion

    • Frontline can make dogs sick.

      Because Frontline is a topical agent applied at the surface of the skin, the dog (or another animal) may lick or gnaw at the point of application. If the dog is able to suction a significant amount of the chemical parasite treatment, there is great chance of ingestion. The chemical Fipronil is an active ingredient in Frontline and has proven to be damaging to the internal systems of dogs, if not completely fatal. Dogs that begin vomiting shortly after being treated with Frontline have likely ingested the medication and should be directed to veterinary care immediately.

    Skin and Eye Irritations

    • Always avoid eye contact when using Frontline for dogs.

      When administering Frontline medication to a dog, be very careful to avoid any eye contact. The chemicals in the medication have been shown to cause severe eye irritations in dogs. If the medication accidentally comes in contact with the animal's eyes it must be flushed out with clear water immediately. If symptoms persist, veterinary care is essential. In some instances canines have experienced mild skin irritations as well.

    Sick, Pregnant or Nursing Dogs

    • Frontline is not recommended for puppies under 8 weeks old or nursing mother dogs.

      Although Frontline flea and tick medication is formulated to be safe for dogs and puppies over the age of 8 weeks, it is not recommended for sick, pregnant or nursing dogs. Dogs that are suffering from other ailments may have weakened immune systems that can render them internally helpless from the chemicals that kill the parasites infesting the dog. Frontline can also cause adverse effects for unborn puppies when the mother is treated during pregnancy. Puppies under 8 weeks of age that are nursing are also at risk of ingestion if the mother is being treated with Frontline during their early weeks of life.