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Dr. B.
Dr. B., Veterinarian
Category: Dog Veterinary
Satisfied Customers: 21258
Experience:  Hello, I am a small animal veterinarian and am happy to discuss any concerns & questions you have on any species.
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He has melena. Black tarry stool. Sid, 10 1/2yrs. Almost 11.

Customer Question

he has melena
JA: I'll do all I can to help. What seems to be the problem with the dog?
Customer: black tarry stool
JA: What is the dog's name and age?
Customer: Sid, 10 1/2yrs.
JA: How old is Sid?
Customer: almost 11
JA: Is there anything else the Veterinarian should be aware of about Sid?
Customer: no,but did have ruptured disc surgery 13months ago
Submitted: 1 year ago.
Category: Dog Veterinary
Expert:  Dr. B. replied 1 year ago.

Hello & welcome, I am Dr. B, a licensed veterinarian & I would like to help you with your wee one today.

How long has he had these signs?

Is he on any medications just now?

Are his gums nice and pink (not white/pale)? Moist or sticky?

If you press on his belly, does he have any tensing, tenderness, discomfort, or pain?

Could he have eaten anything he should not have (ie bones, toys, plants, chemicals, human meds, etc)?

Customer: replied 1 year ago.
4 or 5 days of these signs,he's on novox for inflamation,nose is cold,gums fine. no pain for pushing on stomach and he could have eaten something/anything and maybe he found the alleve pill dropped
Expert:  Dr. B. replied 1 year ago.

Oh dear,

Now we have 2 potential culprits here, The Aleve could certainly cause the melena but also the Novox. Both are NSAIDs that carry the side effect of reducing stomach mucus production leading to increased risk of stomach ulcers. And it is ulcers that tend to bleed into the GI and end up causing melena (which is digested bloods from the upper part of tract). Of course, ingestion of sharp or caustic things could also cause what we are seeing with Sid.

With this in mind, we really need to tread with care; especially since we cannot know how deep the stomach ulcer may be without scoping. Therefore, as long as he is comfortable and his gums are pink you can start supportive care with a view to having him seen once his vet is open. Any change to those and we'd want him seen sooner. And in both cases, it'd be ideal to stop the Novox until he is checked.

In the meantime, we can start small frequent meals of a light diet. Examples of an easily digestible diet include cooked white rice with boiled chicken, boiled white fish, scrambled egg, or meat baby food (as long as its free from garlic or onion powder). Ideally, we want to offer this as small frequent meals to give the stomach acid something else to chew on. As well, we'd want to start him on an antacid. There are a number of antacids that are available over the counter and pet friendly. Ones we can use here include Pepcid (More Info/Dose @ or Zantac (More Info/Dose @ Whichever you use, we'd give this 20 minutes before food to allow absorption, every 12 hours, and of course double check with your vet before use if your wee one has any known health issues or is on any medications you haven't mentioned. This will just reduce stomach acid to reduce further stomach damage. And once his vet is open gastroprotectants and gut safe pain relief can be started to help settle this and allow the stomach to heal.

In this situation, just in case you do wish to see an ER vet, you can check @ or

Please take care,

Dr. B.


If you have any other questions, please ask me – I’ll be happy to respond. Please remember to rate my service once you have all the information you need as this is how I am credited for assisting you today. Thank you! : )

Expert:  Dr. B. replied 1 year ago.
Hi James,
I'm just following up on our conversation about your pet. How is everything going?