Pet Health

Bravecto (Fluralaner) for Dogs: Flea/Tick & Seizure Safety Triage

2 min read Updated Clinically reviewed • Standards
Fleas and Ticks on Dogs and Cats
Fleas and Ticks on Dogs and Cats
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This guide is general education for pet owners. If your pet has urgent symptoms, possible poisoning, injury, breathing trouble, collapse, severe pain, or sudden decline, contact a licensed veterinarian or local emergency service.

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Bravecto (Fluralaner) for Dogs: Flea/Tick & Seizure Safety Triage

Clinical Classification & Indications

  • Drug Class: Isoxazoline Class Ectoparasiticide
  • Approved Uses: Kills adult fleas and is indicated for the treatment and prevention of flea infestations and the treatment and control of tick infestations for 12 weeks in dogs.

Mechanism of Action (Pharmacodynamics)

Selectively inhibits arthropod GABA-gated and L-glutamate-gated chloride channels, causing hyper-excitation, convulsions, and rapid death in parasitic fleas and ticks upon blood feeding.

Large chewable Bravecto fluralaner tablet on blister foil beside veterinary dispensing envelope with isoxazoline seizure safety alert
Figure 1: Macro exhibit of Bravecto (fluralaner) 12-week chewable ectoparasiticide tablet and clinical dispensing directives highlighting mandatory mealtime administration and isoxazoline class neuro-safety precautions.

Adverse Reactions & Side Effect Profile

Common / Expected Side Effects
Mild transient gastrointestinal signs: vomiting, decreased appetite, diarrhea, pruritus, polydipsia.

Emergency Red Flag Reactions
Neurologic adverse events: muscle tremors, ataxia (loss of motor coordination), and generalized seizures developing within 24 to 72 hours of administration.

Veterinarian examining periauricular skin of Golden Retriever with illuminated otoscope beside ceramic dish containing engorged tick specimen
Figure 2: Clinical dermatological ectoparasite examination. Pinnal inspection and mechanical tick removal following outdoor exposure to verify systemic acaricidal efficacy against Ixodes tick vectors.

Clinical Contraindications & Interactions

  • Do Not Use In: Use with extreme caution in dogs with a pre-existing history of seizures or epilepsy. Not approved for puppies under 6 months of age or weighing under 4.4 lbs (2 kg).

Strict Rule S1 Veterinary Prescription Directive

VETERINARY DIRECTIVE: Bravecto chewables must be administered with food to ensure maximum systemic bioavailability. Parasites must attach and commence feeding on the host dog to be exposed to fluralaner. If your dog has ever had a seizure, consult your DVM for non-isoxazoline alternatives. Never administer human pharmaceutical products or adjust dosages without direct examination and bloodwork by a licensed Doctor of Veterinary Medicine (DVM).

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