Proin is an aid in the management of urinary incontinence in dogs. Proin requires a prescription from your veterinarian, and is considered a controlled substance in Arkansas, Iowa, Louisiana and Oregon. Proin is unavailable to be shipped to Arkansas, Iowa, Louisiana, Oregon or Internationally.
Best Answer: Dogs are in heat for 21 days. There are three distinct stages of the heat cycle. The first one is the âProestrusâ and it is during this stage the owner will often notice the bleeding from the vulva. The bleeding itself can be slight or she can leave evidence of her condition everywhere she sits or lays.
Confidence votes 5.0K. Female dogs go through a heat cycle, called estrus, on average every six months. However, this varies from animal to animal. She will have proestrus, or a bleeding cycle, before her true heat cycle during which she is very receptive to the advances of male dogs. This heat cycle lasts for several days up to three or four weeks. This heat cycles goes on unless you spay your dog.