Pocket Pet · Mustela putorius furo · typical adult weight 0.60–2.00 kg
Theophylline is dosed at 4.25–10 mg/kg PO q8-12h in ferrets, per Hedley J. Small Animal Formulary-Part B: Exotic Pets, 10th ed., British Small Animal Veterinary Association, Gloucester, UK; 2020. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.959 (2026-08-01, PENDING REVIEW). Theophylline is used in ferrets for Bronchodilation. Routes documented in ferrets: PO. A typical adult ferret weighs 0.60–2.00 kg. ExoticRx lists 1 cited dose rule for Theophylline in ferrets, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Theo-Dur, Theo-24
| Route | Dose | Frequency | Indication | Evidence | Source |
|---|---|---|---|---|---|
| PO | 4.25–10 mg/kg | q8-12h | Bronchodilation | Weak | Hedley J. Small Animal Formulary-Part B: Exotic Pets, 10th ed., British Small Animal Veterinary Association, Gloucester, UK; 2020. — Mined from Carpenter's Exotic Animal Formulary, 6th Ed, p.959 (2026-08-01, PENDING REVIEW) |
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These ranges are per kg. Enter your ferret's weight to get the precise dose and draw-up volume — unit and concentration math done for you.
Inhibits phosphodiesterase, increasing cAMP. Also antagonizes adenosine receptors. Relaxes bronchial smooth muscle and improves diaphragmatic contractility.
Narrow therapeutic index. Serum monitoring recommended (10-20 mcg/ml). Tachycardia, GI upset, CNS stimulation, seizures in overdose. Many drug interactions (fluoroquinolones, cimetidine increase levels).
Species-specific contraindications and adverse-reaction reports for ferrets may differ from canine / feline reference data — consult the primary citations listed with each rule.
Theophylline dose range in ferrets, with cited source references: PO 4.25–10 mg/kg q8-12h. Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Theophylline in ferrets: PO.
Theophylline is indicated in ferrets for: Bronchodilation.
These are general warnings for Theophylline across species; consult the ferret dosing table above for species-specific guidance. Narrow therapeutic index. Serum monitoring recommended (10-20 mcg/ml). Tachycardia, GI upset, CNS stimulation, seizures in overdose. Many drug interactions (fluoroquinolones, cimetidine increase levels).
Why a species-specific page? Theophylline pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in ferrets — 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.