Cat · Felis catus · typical adult weight 2.50–7.00 kg
Theophylline is dosed at 4–8 mg/kg PO q12-24h (ER) in cats, per Plumb's Veterinary Drug Handbook, 9th Ed. Theophylline is used in cats for Feline asthma adjunct. Routes documented in cats: PO. A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Theophylline in cats, drawn from published veterinary references. Verify against current literature before clinical use.
US trade names: Theo-Dur, Theo-24
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| PO | 4–8 mg/kg | q12-24h (ER) | Long-term | Feline asthma adjunct | Moderate | Plumb's Veterinary Drug Handbook, 9th Ed |
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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 cats may differ from canine / feline reference data — consult the primary citations listed with each rule.
Theophylline dose range in cats, with cited source references: PO 4–8 mg/kg q12-24h (ER). Reference ranges from cited sources — verify against current literature before clinical use.
Documented routes for Theophylline in cats: PO.
Cited course lengths for Theophylline in cats include: Long-term. Duration depends on the indication — match it to the specific dose rule in the table above.
Theophylline is indicated in cats for: Feline asthma adjunct.
These are general warnings for Theophylline across species; consult the cat 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 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.