What is Fusidic Acid used for?

Fusidic Acid is indicated for: Staphylococcal pyoderma.

Which species have cited Fusidic Acid dosing data?

Fusidic Acid dosing in the ExoticRx formulary covers 1 species: Dog (Domestic).

Is Fusidic Acid a controlled substance?

Fusidic Acid is not federally scheduled in the US. Controlled-drug status differs by country — verify your local rules.

Fusidic Acid

US brand names:Fuciderm, Isaderm

Calculate dosage

Sourced from published veterinary references. Awaiting credentialed clinical reviewer — our editorial process.

Drug Class

Antibiotic

Routes

TopicalPO

Indications

Staphylococcal pyoderma

Mechanism of Action

Inhibits bacterial protein synthesis by blocking elongation factor G (EF-G). Excellent anti-staphylococcal activity.

Side effects & warnings

Primarily used topically in veterinary medicine. Resistance develops rapidly with monotherapy. Combine with another agent for systemic use.

Species with Fusidic Acid dosing data (1 dose rule)

Dog (Domestic)

Species references:All Dog (Domestic) drugs

Evidence levels across 1 dose rule

Moderate×1

Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.

Backed by a published source

· Clark SM, Loeffler A and Bond R (2015) Susceptibility in vitro of canine methicillin-resistant and -susceptible staphylococcal isolates to fusidic acid, chlorhexidine and miconazole: opportunities for topical therapy of canine superficial pyoderma. Journal of Antimicrobial Chemotherapy 70, 2048-2052 — Verified against BSAVA Small Animal Formulary, 10th Ed, Part A, p.194 (2026-08-01). — LOCATOR CONVENTION 2026-08-07: the bare 'p.194' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.178; verified by finding the drug named there. If you are holding the book, turn to p.178. — SOURCE EDITION: BSAVA Small Animal Formulary, Part A — Canine and Feline — ISBN 9781910443705, https://openlibrary.org/isbn/9781910443705

Sample dosing (1 of 1 cited rule)

A dog/cat sample is shown here. Cited dosing for all 1 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.

Species	Route	Dose	Frequency	Evidence	Source
Dog (Domestic)	Topical	Combine with another agent to prevent resistance	q12h	Moderate	Clark SM, Loeffler A and Bond R (2015) Susceptibility in vitro of canine methicillin-resistant and -susceptible staphylococcal isolates to fusidic acid, chlorhexidine and miconazole: opportunities for topical therapy of canine superficial pyoderma. Journal of Antimicrobial Chemotherapy 70, 2048-2052 — Verified against BSAVA Small Animal Formulary, 10th Ed, Part A, p.194 (2026-08-01). — LOCATOR CONVENTION 2026-08-07: the bare 'p.194' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.178; verified by finding the drug named there. If you are holding the book, turn to p.178. — SOURCE EDITION: BSAVA Small Animal Formulary, Part A — Canine and Feline — ISBN 9781910443705, https://openlibrary.org/isbn/9781910443705

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