Fish · Cyprinus carpio · typical adult weight 0.25–20.00 kg
Dexamethasone is dosed at 10 mg/l bath immersion/bath — see duration in koi, per Ramsey I, ed. BSAVA Small Animal Formulary, 10th ed. Part B: Exotic Pets. Gloucester: British Small Animal Veterinary Association; 2023. p.110. — LOCATOR CONVENTION 2026-08-07: the bare 'p.110' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.96; verified by finding the drug named there. If you are holding the book, turn to p.96. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712. Dexamethasone (Emergency) has cited veterinary dosing for koi. Routes documented in koi: bath, i.m.. A typical adult koi weighs 0.25–20.00 kg. ExoticRx lists 2 cited dose rules for Dexamethasone in koi, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Azium, Dexafort
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| bath | 10 mg/l | immersion/bath — see duration | 10 mg/l for 60 minute bath q12-24h. [BSAVA Small Animal Formulary 10th ed, Part B, p.110, printed verbatim] | — | Moderate | Ramsey I, ed. BSAVA Small Animal Formulary, 10th ed. Part B: Exotic Pets. Gloucester: British Small Animal Veterinary Association; 2023. p.110. — LOCATOR CONVENTION 2026-08-07: the bare 'p.110' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.96; verified by finding the drug named there. If you are holding the book, turn to p.96. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712Compilation only — we have not located an independent source that prints this figure. |
| i.m. | 1–2 mg/kg | — | — | Moderate | Ramsey I, ed. BSAVA Small Animal Formulary, 10th ed. Part B: Exotic Pets. Gloucester: British Small Animal Veterinary Association; 2023. p.110. — LOCATOR CONVENTION 2026-08-07: the bare 'p.110' in this citation is the PDF index of the held scan, not the printed page. The PRINTED page is p.96; verified by finding the drug named there. If you are holding the book, turn to p.96. — SOURCE EDITION: BSAVA Small Animal Formulary, Part B — Exotic Pets — ISBN 9781910443712, https://openlibrary.org/isbn/9781910443712Compilation only — we have not located an independent source that prints this figure. |
Every held source for this drug and species, as printed. Where they differ, both are shown — the choice is yours, not ours.
The sources disagree for this combination. The ranges below do not overlap on a comparable route. This is not an error in one of them — published veterinary references differ, and reconciling them for a particular patient is a clinical judgement.
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 1–2 | IM | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.110 | 1-2 mg/kg i.m., intracoelomic or 10 mg/l for 60 minute bath q12-24h. Dexmedetomidine ( |
| 0.2 | IM | Carpenter's Exotic Animal Formulary, 6th edTable 2.4 | 0.2 mg/kg IM, SC once |
| 1–2 | IM | Carpenter's Exotic Animal Formulary, 6th edTable 2.4 | 1-2 mg/kg IM, ICe 2 mg/kg IV, ICe q12h Ch |
| 2 | IV |
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These ranges are per kg. Enter your koi's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Potent synthetic glucocorticoid. Suppresses inflammation, immune responses, and allergic reactions. 25-30x potency of cortisol.
Immunosuppressive. PU/PD, polyphagia. Avoid in active infections without antibiotic coverage. Prolonged use causes iatrogenic hyperadrenocorticism. Avoid in reptiles if possible (severe immunosuppression).
Species-specific contraindications and adverse-reaction reports for koi may differ from canine / feline reference data — consult the primary citations listed with each rule.
Dexamethasone dose ranges in koi, with cited source references: bath 10 mg/l immersion/bath — see duration; i.m. 1–2 mg/kg. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Dexamethasone in koi: bath, i.m..
Cited course lengths for Dexamethasone in koi include: 10 mg/l for 60 minute bath q12-24h. [BSAVA Small Animal Formulary 10th ed, Part B, p.110, printed verbatim]. Duration depends on the indication — match it to the specific dose rule in the table above.
These are general warnings for Dexamethasone across species; consult the koi dosing table above for species-specific guidance. Immunosuppressive. PU/PD, polyphagia. Avoid in active infections without antibiotic coverage. Prolonged use causes iatrogenic hyperadrenocorticism. Avoid in reptiles if possible (severe immunosuppression).
Why a species-specific page? Dexamethasone pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in koi — the rules above are the citations specific to this species, not generic recommendations.
Sourced from published veterinary references; awaiting credentialed clinical reviewer. See our editorial process. Reference only — not veterinary advice.
| Carpenter's Exotic Animal Formulary, 6th edTable 2.4 |
| 1-2 mg/kg IM, ICe 2 mg/kg IV, ICe q12h Ch |
| Dose (mg/l) | Route | Source | As printed |
|---|---|---|---|
| 10 | IMMERSION | BSAVA Small Animal Formulary, 10th ed — Part B (Exotic Pets)p.110 | 1-2 mg/kg i.m., intracoelomic or 10 mg/l for 60 minute bath q12-24h. Dexmedetomidine (Dexdomitor) POM-V |
Figures are transcribed from the cited page or table of each held edition and are shown for reference only. They are not dose recommendations, they do not feed the calculator, and none has been reviewed by a veterinarian.