Proin ER (phenylpropanolamine hydrochloride extended-release tablets) for Dogs, 145 mg, 30 ct

Treatment of Urinary Incontinence due to Urethral Sphincter Hypotonus
Proin ER (phenylpropanolamine hydrochloride extended-release tablets) for Dogs, 145 mg, 30 ct
Price: $ 35.95
Case Pack Price (Qty: ): $ 0.00

This product requires a prescription

Your pet and vet information will be confirmed by our pharmacy before dispensing. Details and state availability.

 !  This product is not available for sale or shipment into Louisiana.

FDA-approved Phenylpropanolamine Hydrochloride medication for the control of canine urinary incontinence due to urethral sphincter hypotonus.

PROIN ER (phenylpropanolamine hydrochloride extended-release tablets) provides the same proven efficacy as PROIN (phenylpropanolamine hydrochloride) chewable tablets in extended-release tablets for once-a-day dosing. Our patented extended-release technology provides a controlled release mechanism that achieves steady absorption.

Urethral sphincter hypotonus causes canine urinary incontinence as a result of weakened muscles of the urethral sphincter.

PROIN works by increasing urethral sphincter muscle tone to help prevent urinary leakage.


  • Convenient – Given with food, a single dose per day simplifies treatment
  • Innovative – Patented release technology provides controlled release that ensures steady absorption
  • Easy to Administer – Chewable, liver-flavored tablets improve compliance
  • Easy to Prescribe – Four dosing strengths based on body weight to provide simplicity
  • FDA Approved – FDA approved for control of urinary incontinence due to urethral sphincter hypotonus in dogs

What are the common clinical signs of urinary incontinence in dogs?

  • Dripping or leaking urine
  • Excessive licking of the genital area
  • Red and irritated skin around the genital area
  • Needing to go more frequently than normal
  • Wetting the bed or sleeping area
  • Urinating inappropriately in the house

PDF Prescribing Information

Our pharmacists are available for counseling regarding prescriptions purchased from Pet Supplies Delivered before and after dispensing. Monday - Friday, 9 AM - 2 PM CST. 1-800-367-4444.

UPC Code
PRN Pharmacal

 Active ingredient: phenylpropanolamine hydrochloride

PROIN ER comes in four sizes for dosing:

  • 18 mg: 10-20 lbs.
  • 38 mg: 21-40 lbs.
  • 74 mg: 41-80 lbs.
  • 145 mg: 81-125 lbs.