Phenylpropanolamine
Proin is a veterinary medication primarily used to treat urinary incontinence in dogs by increasing the tone of the urethral sphincter muscle. The active ingredient, phenylpropanolamine, is a sympathomimetic agent that helps control urine leakage by supporting bladder control. This medication is available by prescription and should only be used under veterinary supervision.
Proin is a prescription veterinary medication used to treat urinary incontinence in dogs by increasing urethral sphincter tone.
Key facts at a glance
- RxNorm
- 1151104
- Generic
- Proin
- Class
- brand-name
- Brands
- —
- Availability
- rx
- Lactation
- unknown
- Routes
- —
- Forms
- —
- Regions
- US, EU, CN, JP
- Monitoring
- —
This page is for informational purposes only.
Do not use this information to diagnose yourself or to replace a physician's advice. Always consult a qualified healthcare provider before starting, stopping, or changing any medication. If you believe you are experiencing a medical emergency, call your local emergency number immediately.
Proin is indicated for the treatment of urinary incontinence in dogs, helping to control involuntary urine leakage caused by weakened urethral sphincter function.
Proin contains phenylpropanolamine, a sympathomimetic agent that stimulates alpha-adrenergic receptors in the urethral sphincter, increasing muscle tone and helping to maintain closure of the bladder outlet.
This medication is for veterinary use only in dogs. Common side effects may include restlessness, irritability, and elevated blood pressure. Proin should not be used in pregnant animals or those with certain health conditions. Always follow your veterinarian's dosing instructions carefully and inform them of any other medications your pet is taking.
Official drug label
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This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment.
This content is for general informational and educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the guidance of a qualified healthcare provider with any questions you have about a medical condition, and never disregard professional medical advice or delay seeking it because of something you read here.
If you think you may have a medical emergency, call your local emergency number or go to the nearest emergency department immediately.
Medically reviewed by WellAlly Editorial Team Last reviewed August 9, 2026. · Read our editorial policy