(Proin® and Propadrine® are other names for this medication.) 

Use: Phenylpropanolamine is used to tighten up the bladder sphincter for animals suffering from urine leakage (incontinence).

Side Effects: Phenylpropanolamine is a stimulant that may cause restlessness, irritability, high blood pressure and loss of appetite. It may also cause a rapid heart beat.

Precautions: Some other drugs can interact with this medication so tell your veterinarian about any drugs or foods that you currently give your animal. Do not give new foods or medications without first asking your veterinarian.

Directions: Dogs and cats usually receive phenylpropanolamine orally once or twice daily. It should be given as late in the evening as possible (bedtime) to prevent accidents during the night. Do not give your pet aged cheese or use tick collars while on this medication.

Remember: Phenylpropanolamine should be stored in a tight, light resistant, childproof container away from all children and other household pets. Phenylpropanolamine has been banned by the FDA for use in humans.

If you miss a dose of this medication you should give it as soon as you remember it, but if it is within a few hours of the regularly scheduled dose, wait and give it at the regular time. Do not double a dose as this can be toxic to your pet.