ExoticRx · exoticrx.com/drugs/doxazosin
US brand names:Cardura
Doxazosin is dosed at 0.5–2 mg per dog PO q12-24h in dogs, per Plumb's Veterinary Drug Handbook, 9th Ed. Verify against current literature before clinical use.
Selective alpha-1 adrenergic antagonist relaxing smooth muscle in bladder neck and proximal urethra. Reduces urethral resistance.
Used for functional urethral obstruction and urethral spasm. First-dose hypotension — start low. Longer acting than prazosin.
Species references:All Dog (Domestic) drugs
Each ExoticRx dose rule is graded by the strength of its primary evidence — see the editorial process.
A dog/cat sample is shown here. Cited dosing for all 1 species — reptiles, birds, pocket pets, livestock, and equine — is free on the per-species pages above. Pro adds the weight-based calculator for every species.
| Species | Route | Dose | Frequency | Evidence | Source |
|---|---|---|---|---|---|
| Dog (Domestic) | PO | 0.5–2 mg per dog | q12-24h | Weak | Plumb's Veterinary Drug Handbook, 9th Ed |
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View PlansSource citations and evidence levels available on the live page. Reference only — verify against current literature before clinical use.