Using history alone it is difficult to rule-out other causes, but the history would support a colitis (LINK HERE) The inflammation and irritation of the intestines causes fluid buildup into the intestines, resulting in diarrhea. There are times when the patient does not feel well as a result, then also vomits. Due to the good blood supply to the intestines, when the colon is irritated, frank blood and mucous may be noted in the diarrhea as well Dietary indiscretion is a common cause of this.
Intestinal worms can also be a common cause so ensure Portsank has been recently wormed with an all-wormer.
Common therapies to consider for a colitis include: 1) One option would be a veterinary prescription bland diet called Hill’s I/D (LINK HERE) or Hill’s W/D (LINK HERE) which is higher in fiber. The second option would be a home-cooked bland diet. A common bland diet is boiled white rice and boiled white meat chicken. It is recommended to offer a mixture of 2/3 rice and 1/3 of the chicken. If the diet is tolerated, and once clinical improvement is seen, it is recommended to SLOWLY transition back to the normal diet. 2) Antacids for stomach and intestinal upset (often one is chosen of the 3 choices below): - Famotidine (Pepcid A/C) - LINK HERE (The typical dose administered is 0.25 to 0.5 mg per pound (0.5 to 1.0 mg/kg) every 12 to 24 hours.) - Prilosec OTC (Omeprazole) - LINK HERE (The typical dose administered to animals is 0.25 to 0.5 mg per pound (0.5 to 1.0 mg/kg), every 24 hours or once daily.) - Rantididine (Zantac) - LINK HERE (The typical dose administered to animals is 0.25 to 1 mg per pound (0.5 to 2 mg/kg), every 8 to 12 hours.) 3) Pedialyte for hydration - LINK HERE 4) Probiotics can also be considered - LINK HERE or LINK HERE If this continues, or worsens - OR there is vomiting - going to your vet or local ER would be ideal. If you have any follow-up questions - please do not hesitate to ask!
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