Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Dexamethasone is dosed at 0.1–0.5 mg/kg IM q24h in dogs, per Plumb's Veterinary Drug Handbook, 9th Ed. Dexamethasone is used in dogs for Anti-inflammatory, immune-mediated disease, IMHA (immune-mediated hemolytic anemia), Spinal cord injury (acute), Shock, cerebral edema, severe allergic reactions. Routes documented in dogs: IM, IV, PO, SC. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 7 cited dose rules for Dexamethasone in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Azium, Dexafort
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| IM | 0.1–0.5 mg/kg | q24h | Short course; taper | Anti-inflammatory, immune-mediated disease | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| IV | 0.2–0.5 mg/kg | q12-24h | Taper over weeks-months | IMHA (immune-mediated hemolytic anemia) | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| IV | 1–2 mg/kg | once | Single dose within 8 hours of injury | Spinal cord injury (acute) | Weak | Plumb's Veterinary Drug Handbook, 9th Ed |
| IV | 0.5–4 mg/kg | once | Single emergency dose; taper for continued use | Shock, cerebral edema, severe allergic reactions | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| PO | 0.01 mg/kg | once | Single diagnostic dose | Low-dose dexamethasone suppression test (diagnostic) | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
| PO | 0.05–0.2 mg/kg | q12-24h | Taper over weeks | Anti-inflammatory, immune-mediated disease | Strong | Verified against Plumb's Veterinary Drug Handbook, 10th Ed, p.391 (2026-08-01). |
| SC | 0.1–0.3 mg/kg | q24h | Short course | Anti-inflammatory (when PO/IM/IV not feasible) | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
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These ranges are per kg. Enter your dog'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 dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Dexamethasone dose ranges in dogs, with cited source references: IM 0.1–0.5 mg/kg q24h; IV 0.2–0.5 mg/kg q12-24h; IV 1–2 mg/kg once; IV 0.5–4 mg/kg once. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Dexamethasone in dogs: IM, IV, PO, SC.
Cited course lengths for Dexamethasone in dogs include: Short course; taper; Taper over weeks-months; Single dose within 8 hours of injury; Single emergency dose; taper for continued use. Duration depends on the indication — match it to the specific dose rule in the table above.
Dexamethasone is indicated in dogs for: Anti-inflammatory, immune-mediated disease, IMHA (immune-mediated hemolytic anemia), Spinal cord injury (acute), Shock, cerebral edema, severe allergic reactions, Low-dose dexamethasone suppression test (diagnostic), Anti-inflammatory (when PO/IM/IV not feasible).
These are general warnings for Dexamethasone across species; consult the dog 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 dogs — 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.