# Bravecto (Fluralaner) Dose for Dogs: Strengths & Dose Calculator

> Bravecto chews contain fluralaner and are given to dogs from 6 months and 4.4 lb once every 12 weeks, at a minimum of 25 mg/kg (every 8 weeks for lone star ticks).…

- Source page: https://wevet.in/vet-products/bravecto-fluralaner/
- Type: Vet product
- Publisher: WeVet
- Updated: 2026-11-02
- Medically reviewed by: Dr. Ravi Baraiya, B.V.Sc. (2026-11-02)
- Audience: veterinarians and veterinary students

Bravecto chews contain fluralaner and are given to dogs from 6 months and 4.4 lb once every 12 weeks, at a minimum of 25 mg/kg (every 8 weeks for lone star ticks) [1]. The chew is chosen by weight band: 112.5, 250, 500, 1000 or 1400 mg [1].

- Brand: Bravecto
- Contains: Fluralaner
- Company: MSD Animal Health (Merck Animal Health in the US)
- Label species: Dogs
- Data from: USA (FDA label)

## Strengths

- Bravecto chews: Fluralaner strength not confirmed (verified, [1])
  - 4.4–9.9 lb: Bravecto 112.5 mg
  - 9.91–22 lb: Bravecto 250 mg
  - 22.01–44 lb: Bravecto 500 mg
  - 44.01–88 lb: Bravecto 1000 mg
  - 88.01–123 lb: Bravecto 1400 mg

## Dose by species

| Species | Use | Dose | Route | How often | Basis |
|---|---|---|---|---|---|
| Dogs | Fleas and ticks (Minimum dose.) | 25 mg/kg [1] | PO | Every 12 weeks (8 weeks for lone star tick) | Label |

## Label directions

- Give orally as a single dose every 12 weeks at a minimum of 25 mg/kg; every 8 weeks where lone star ticks are a risk [1].

## Warnings and precautions

- Isoxazolines have been linked to tremors, ataxia and seizures — use with caution in dogs with a seizure history [1].
- For dogs 6 months and older, weighing 4.4 lb or more [1].


Interactive dose calculator (strength prefilled only when confirmed): use the page link above.

## Frequently asked questions

### Which Bravecto size for my dog?

4.4–9.9 lb: 112.5 mg; over 9.9–22 lb: 250 mg; over 22–44 lb: 500 mg; over 44–88 lb: 1000 mg; over 88–123 lb: 1400 mg; over 123 lb: a combination [1].

### How long does Bravecto last?

One dose every 12 weeks for fleas and most ticks; every 8 weeks for lone star ticks [1].

## References

[1] BRAVECTO (fluralaner) chewable — label — DailyMed (US NLM) — FDA-approved label, Merck Sharp & Dohme (2026). https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=1fcbf232-cfd4-481e-ba9b-6251b7b468d7

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Numbers in [brackets] cite the references above. For veterinary professionals. Information supports — never replaces — clinical judgement; always check the current product label and local regulations.
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