OtherPrescription RequiredDogCat
Prazosin
Prazosin hydrochloride
Drug Class
Other
Available Forms
Oral capsule
Approved For
DogCat
Dosage Guide
Cats (FLUTD): 0.25-0.5 mg/cat PO twice daily. Dogs (urethral spasm): 0.5-2 mg/dog PO twice daily. Start low and titrate up.
This is a general reference only. Always follow your veterinarian's prescribed dosage for your specific pet.
Side Effects
- •Hypotension (low blood pressure)
- •Lethargy
- •Dizziness
- •Nasal congestion
Important Warnings
- !Start at lowest dose and titrate gradually
- !Monitor for weakness or collapse after first dose ("first-dose effect")
- !Use with caution in animals with cardiovascular disease
Contraindications
Do not use this medication in the following situations:
- ✕Known hypotension
- ✕Concurrent use of other alpha-blockers
Medical Disclaimer
This medication guide is for informational purposes only. Always consult a licensed veterinarian before administering any medication to your pet. Dosages vary based on weight, age, health status, and concurrent medications. Never give human medications to pets without veterinary approval — many common human drugs are toxic or fatal to animals.