Cat · Felis catus · typical adult weight 2.50–7.00 kg
Brimonidine Ophthalmic is used in cat for CONTRAINDICATED in cats. Routes documented in cat: TOPICAL (ophthalmic). A typical adult cat weighs 2.50–7.00 kg. ExoticRx lists 1 cited dose rule for Brimonidine Ophthalmic in cat, drawn from published veterinary references. Verify against current literature before clinical use.
Trade names: Alphagan
| Route | Dose | Frequency | Duration | Indication | Evidence | Source |
|---|---|---|---|---|---|---|
| TOPICAL (ophthalmic) | 0 DO NOT USE | CONTRAINDICATED | TOXIC | CONTRAINDICATED in cats | Strong | Plumb's Veterinary Drug Handbook, 9th Ed |
Absolute dose ceiling, regardless of body weight: 0 mg total (TOPICAL (ophthalmic)).
Need the exact dose for your patient?
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.
Alpha-2 adrenergic agonist that decreases aqueous humor production and increases uveoscleral outflow. Also neuroprotective to retinal ganglion cells.
TOXIC in cats and small dogs (systemic alpha-2 effects: sedation, bradycardia, hypotension). Avoid in cats. Use with caution in small dogs. Monitor for CNS depression.
Species-specific contraindications and adverse-reaction reports for cat may differ from canine / feline reference data — consult the primary citations listed with each rule.
Why a species-specific page? Brimonidine Ophthalmic pharmacokinetics differ across species: dose ranges, intervals, and route preferences are not interchangeable. Cross-extrapolation from canine doses is unsafe in cat — 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.