Cat · Felis catus · typical adult weight 2.50–7.00 kg
Olsalazine is dosed at 5–10 mg/kg PO q12h in cats, per Papich, Saunders Handbook of Veterinary Drugs, 5th ed, printed pp.576-577 (corpus pdf pp.604-605), Olsalazine Sodium, Small Animal Dosage: 'Dose not established, but 5-10 mg/kg q8h have been used.' — EDITION UNVERIFIABLE 2026-08-07: this citation names Papich 5th ed, which is NOT held. Its page locator does not resolve to a page naming this drug in the held 4th ed (2016), so the reference cannot be confirmed against any copy available here. Treat the page number as unchecked and consult the 5th edition directly. — SOURCE EDITION: Saunders Handbook of Veterinary Drugs — ISBN 9780323244855, https://openlibrary.org/isbn/9780323244855. Olsalazine is used in cats for Chronic colitis. Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Olsalazine in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Dipentum
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 5–10 mg/kg | q12h | Long-term for IBD; limited feline data | Chronic colitis | Extrapolated | Papich, Saunders Handbook of Veterinary Drugs, 5th ed, printed pp.576-577 (corpus pdf pp.604-605), Olsalazine Sodium, Small Animal Dosage: 'Dose not established, but 5-10 mg/kg q8h have been used.' — EDITION UNVERIFIABLE 2026-08-07: this citation names Papich 5th ed, which is NOT held. Its page locator does not resolve to a page naming this drug in the held 4th ed (2016), so the reference cannot be confirmed against any copy available here. Treat the page number as unchecked and consult the 5th edition directly. — SOURCE EDITION: Saunders Handbook of Veterinary Drugs — ISBN 9780323244855, https://openlibrary.org/isbn/9780323244855 |
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These ranges are per kg. Enter your cat's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Dimer of mesalamine cleaved by colonic bacteria to release two molecules of 5-aminosalicylic acid locally, exerting anti-inflammatory effects on colonic mucosa.
Diarrhea may worsen initially (secretory). Avoid in salicylate hypersensitivity. Monitor renal function with long-term use.
Species-specific contraindications and adverse-reaction reports for cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Olsalazine dose range in cats, with cited source references: PO 5–10 mg/kg q12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Olsalazine in cats: PO.
Cited course lengths for Olsalazine in cats include: Long-term for IBD; limited feline data. Duration depends on the indication — match it to the specific dose rule in the table above.
Olsalazine is indicated in cats for: Chronic colitis.
These are general warnings for Olsalazine across species; consult the cat dosing table above for species-specific guidance. Diarrhea may worsen initially (secretory). Avoid in salicylate hypersensitivity. Monitor renal function with long-term use.
Why a species-specific page? Olsalazine pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cats — 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.