Dog · Canis lupus familiaris · typical adult weight 2.00–80.00 kg
Aspirin is dosed at 0.5–1 mg/kg PO q24h (antiplatelet) in dogs, per BSAVA Small Animal Formulary 10th ed., Part A: Canine and Feline (Allerton F, ed.), Aspirin monograph, printed p.33 (corpus p.49) — SOURCE EDITION: BSAVA Small Animal Formulary, Part A — Canine and Feline — ISBN 9781910443705, https://openlibrary.org/isbn/9781910443705. Aspirin is used in dogs for Anti-platelet (low-dose), pain/inflammation. Routes documented in dogs: PO. A typical adult dog weighs 2.00–80.00 kg. ExoticRx lists 1 cited dose rule for Aspirin in dogs, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Bufferin, Ascriptin
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 0.5–1 mg/kg | q24h (antiplatelet) | Long-term for antiplatelet | Anti-platelet (low-dose), pain/inflammation | Weak | BSAVA Small Animal Formulary 10th ed., Part A: Canine and Feline (Allerton F, ed.), Aspirin monograph, printed p.33 (corpus p.49) — SOURCE EDITION: BSAVA Small Animal Formulary, Part A — Canine and Feline — ISBN 9781910443705, https://openlibrary.org/isbn/9781910443705 |
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/animal) | Route | Source | As printed |
|---|---|---|---|
| 80 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.83 | • Typical doses are in the range of • 80 mg/cat q48h PO. Doses have |
| Dose (mg/kg) | Route | Source | As printed |
|---|---|---|---|
| 0.5 | PO | BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.49 | platelet aggregation (e.g. IMHA): 0.5-1 mg/kg p.o. q24h or 0.5 mg/kg p.o. q12h. Analgesia, pyrexia, inflammation: doses range from 10 mg/kg to 20 mg/kg p.o. q |
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Irreversibly acetylates cyclooxygenase (COX-1 and COX-2), inhibiting prostaglandin and thromboxane synthesis.
TOXIC to cats (prolonged half-life, deficient glucuronidation). Use buffered only. GI ulceration. Avoid with other NSAIDs or corticosteroids. Platelet inhibition irreversible.
Species-specific contraindications and adverse-reaction reports for dogs may differ from canine / feline reference data — consult the primary citations listed with each rule.
Aspirin dose range in dogs, with cited source references: PO 0.5–1 mg/kg q24h (antiplatelet). Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Aspirin in dogs: PO.
Cited course lengths for Aspirin in dogs include: Long-term for antiplatelet. Duration depends on the indication — match it to the specific dose rule in the table above.
Aspirin is indicated in dogs for: Anti-platelet (low-dose), pain/inflammation.
These are general warnings for Aspirin across species; consult the dog dosing table above for species-specific guidance. TOXIC to cats (prolonged half-life, deficient glucuronidation). Use buffered only. GI ulceration. Avoid with other NSAIDs or corticosteroids. Platelet inhibition irreversible.
Why a species-specific page? Aspirin 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.
| 10 |
| PO |
| BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.49 |
| o. q12h. Analgesia, pyrexia, inflammation: doses range from 10 mg/kg to 20 mg/kg p.o. q12h. The safety and efficacy of this dose has not been established |
| 20 | PO | BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.49 | lgesia, pyrexia, inflammation: doses range from 10 mg/kg to 20 mg/kg p.o. q12h. The safety and efficacy of this dose has not been established |
| 0.5–1 | PO | BSAVA Small Animal Formulary, 10th ed — Part A (Canine and Feline)p.49 | are unknown. Reduction of platelet aggregation (e.g. IMHA): 0.5-1 mg/kg p.o. q24h or 0.5 mg/kg p.o. q12h. Analgesia, pyrexia, inflammation: doses range from 10 m |
| 10–20 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.83 | • 20-25 mg/kg q12h PO. • 10-20 mg/kg q48h PO. |
| 1–5 | — | Papich Saunders Handbook of Veterinary Drugs, 4th edp.83 | 1-5 mg/kg, and usually 5-up to ranged from 5 mg per cat q72h, to |
| 10 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.83 | 10 mg/kg q24-48h PO. (Convincing 80 mg per cat (one tablet) q72h. No |
| 20–25 | PO | Papich Saunders Handbook of Veterinary Drugs, 4th edp.83 | • 20-25 mg/kg q12h PO. • 10-20 mg/kg q48h PO. |
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.