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PetDosageChart

Isoxazoline parasiticide · For Dogs

How much Bravecto (Fluralaner) can I give my dog?

Standard Bravecto dose for dogs is 40 mg per kg (18.14 mg per lb), given Every 12 weeks (chewable) or monthly (topical). Use the calculator below for your dog's exact weight, or jump to the weight-by-weight chart.

Onset
2 hours for fleas, 12 hours for ticks
Duration
12 weeks (chewable)
Class
Isoxazoline parasiticide

This dosage information is for educational purposes only. Always consult your veterinarian before giving any medication to your pet. Dosages may vary based on your pet's health conditions, other medications, and individual factors.

Content reviewed by licensed veterinarians. Sourced from Plumb's Veterinary Drug Handbook and the Merck Veterinary Manual.

Dosage Calculator · 01

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Bravecto dose by dog weight

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Dosage Chart · 02

Bravecto dosage for dogs by weight

Scroll sideways to see full table

Weight Low Dose Standard Max Safe Frequency
5 lbs (2.3 kg) 57.5mg 92mg (112.5mg tablet) 129mg (112.5mg tablet) Every 12 weeks (chewable) or monthly (topical)
10 lbs (4.5 kg) 112.5mg (112.5mg tablet) 180mg 252mg (2 × 112.5mg) Every 12 weeks (chewable) or monthly (topical)
15 lbs (6.8 kg) 170mg 272mg 381mg Every 12 weeks (chewable) or monthly (topical)
20 lbs (9.1 kg) 227.5mg (2 × 112.5mg) 364mg (3 × 112.5mg) 509.5mg Every 12 weeks (chewable) or monthly (topical)
25 lbs (11.3 kg) 282.5mg 452mg (4 × 112.5mg) 633mg Every 12 weeks (chewable) or monthly (topical)
30 lbs (13.6 kg) 340mg (3 × 112.5mg) 544mg (5 × 112.5mg) 761.5mg (7 × 112.5mg) Every 12 weeks (chewable) or monthly (topical)
40 lbs (18.1 kg) 452.5mg (4 × 112.5mg) 724mg 1013.5mg (9 × 112.5mg) Every 12 weeks (chewable) or monthly (topical)
50 lbs (22.7 kg) 567.5mg (5 × 112.5mg) 908mg (8 × 112.5mg) 1271mg Every 12 weeks (chewable) or monthly (topical)
60 lbs (27.2 kg) 680mg (6 × 112.5mg) 1088mg 1523mg Every 12 weeks (chewable) or monthly (topical)
70 lbs (31.7 kg) 792.5mg (7 × 112.5mg) 1268mg 1775mg (16 × 112.5mg) Every 12 weeks (chewable) or monthly (topical)
80 lbs (36.3 kg) 907.5mg (8 × 112.5mg) 1452mg (13 × 112.5mg) 2033mg (18 × 112.5mg) Every 12 weeks (chewable) or monthly (topical)
90 lbs (40.8 kg) 1020mg (9 × 112.5mg) 1632mg 2285mg Every 12 weeks (chewable) or monthly (topical)
100 lbs (45.4 kg) 1135mg (10 × 112.5mg) 1816mg (16 × 112.5mg) 2542.5mg Every 12 weeks (chewable) or monthly (topical)
120 lbs (54.4 kg) 1360mg (12 × 112.5mg) 2176mg 3046.5mg (27 × 112.5mg) Every 12 weeks (chewable) or monthly (topical)
150 lbs (68 kg) 1700mg (15 × 112.5mg) 2720mg (24 × 112.5mg) 3808mg (34 × 112.5mg) Every 12 weeks (chewable) or monthly (topical)

Common Uses · 03

What is Bravecto (Fluralaner) used for in dogs?

Flea prevention and treatment Tick prevention and treatment Demodectic mange Sarcoptic mange

Administration · 04

How to give Bravecto to your dog

Give the Bravecto chewable tablet with a full meal to ensure optimal absorption. Choose the correct tablet size based on your dog's weight using the manufacturer's weight chart. The chew is flavored and most dogs eat it readily. If your dog does not chew the tablet, it can be broken and placed in food. Mark your calendar for the next dose in 12 weeks.

Available Forms

Chewable tablet, Topical solution

Give with Food?

Yes — give with food

Side Effects · 05

Side effects of Bravecto in dogs

Common side effects

Vomiting
Decreased appetite
Diarrhea
Lethargy
Flatulence

Serious side effects — call your vet

  • Seizures in dogs with a history of neurological disorders
  • Tremors or ataxia
  • Severe allergic reaction
  • Persistent vomiting

Emergency · 06

When to call the vet

Call your vet immediately if your dog shows any of these signs:

  • Seizure activity, tremors, or stumbling after administration
  • Vomiting within 3 hours of giving the chew
  • Severe or persistent diarrhea
  • Signs of allergic reaction (facial swelling, hives, difficulty breathing)
  • Excessive lethargy lasting more than 48 hours

Related · 08

Related medications for dogs

Sources · 09

Sources & references

The dosage information on this page is compiled from the following veterinary and pharmaceutical references:

  • Plumb's Veterinary Drug Handbook — the standard veterinary pharmacology reference used by veterinarians worldwide.
  • Merck Veterinary Manual — a trusted, peer-reviewed resource for veterinary professionals and pet owners.
  • DailyMed (FDA Drug Labels) — official FDA-approved drug labeling and prescribing information for Fluralaner.

Read more about our methodology and how we calculate dosages.

Frequently Asked · 07

Questions about this medication

How long does Bravecto last for dogs?
The Bravecto chewable tablet provides flea and tick protection for 12 weeks (approximately 3 months), making it one of the longest-lasting oral flea and tick products available. The topical formulation is applied monthly. This extended duration means fewer doses per year compared to monthly products.
Can Bravecto cause seizures in dogs?
The FDA has reported that isoxazoline products, including Bravecto, may cause neurological adverse events such as seizures, tremors, and ataxia in some dogs. Dogs with a history of seizures or neurological disorders may be at higher risk. Discuss your dog's medical history with your vet before starting Bravecto.
Does Bravecto need to be given with food?
Yes, Bravecto chewable tablets should be given with food or at mealtime. Giving with food significantly improves absorption of the active ingredient fluralaner, ensuring optimal flea and tick protection for the full 12-week period.
What if my dog vomits after taking Bravecto?
If your dog vomits within 3 hours of taking Bravecto, the dose may not have been fully absorbed. Contact your veterinarian, who may recommend re-dosing. Giving Bravecto with a full meal helps reduce the chance of vomiting and improves absorption.
Does Bravecto kill ticks already on my dog?
Yes, Bravecto begins killing ticks within 12 hours of administration and fleas within 2 hours. It kills existing parasites as well as new ones that jump on your dog throughout the 12-week protection period. However, ticks may still briefly attach before being killed.

Safety · 10

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