Friend, the red color you saw in the feces is likely blood. When we see bloody loose stool this is a sign of inflammation in the large intestines (colon); this does not happen with sniffing plants. Possible causes are dietary indiscretion, ingestion of a foreign body, infections, parasites, etc. to name a few causes. Whatever is causing the inflammation can also make him vomit. To determine the exact underlying cause he will need a hands-on examination with a veterinarian, x-rays and fecal analysis as an initial screening test. In the meantime, this is what you can do:
1- Do not give things like Pepto Bismol or Imodium. You can start him on Pepcid AC (famotidine) 10mg 1/4 tablet every 12 hours for 2-3 days.
2- No food or water for 6-8 hours, need to give his gastrointestinal tract time to rest. Then, offer a small amount of water followed by a diet of rice (75%) and boiled boneless chicken or ground beef (25%) until the stool is back to normal then wean him back into his regular diet.
3- Supplement with a probiotic, these are friendly bacterias that help with regularity and inflammation. You can buy this over the counter in any pet store.
4- Follow up with your family veterinarian for a hands on examination.
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