Why is his stool a weird color when he's on amoxicillin and tobramycin?

Since my dog started his medication of amoxicillin and tobramycin, I've noticed that his stool has turned an odd color. It's been worrying me because this change happened shortly after the treatment began. Could this be a side effect of the antibiotics, or is there something else that might be causing this change?

Answer

It's understandable to feel concerned when you notice a change in your dog's stool color while they are on medication. Both amoxicillin and tobramycin can cause changes in stool due to their impact on your pet’s digestive system.

  • Antibiotics like amoxicillin can lead to changes in stool color.
  • Observe any other symptoms such as lethargy or loss of appetite.
  • If worried, a consultation with a vet can provide clarity.

Some antibiotics may alter the color and consistency of a dog's stool as they adjust to the medication. This can include colors that might seem unusual, ranging from lighter to slightly darker shades. However, if your dog is experiencing additional symptoms, or if the stool is very unusual or alarming (such as having blood), it would be best to speak with a veterinarian for guidance. This ensures that your pet is responding well to the treatment and there are no underlying issues.

Book a consultation with a licensed vet at Dial A Vet for just $49 AUD if you're unsure or symptoms are getting worse.

Frequently Asked Questions

  • Can antibiotics change the color of my dog’s stool?

    Yes, antibiotics like amoxicillin can change the color and consistency of stool as they impact the gut flora. This is usually not a cause for alarm unless accompanied by other symptoms such as vomiting or lethargy.

  • What should I do if my dog has diarrhea while on antibiotics?

    If your dog develops diarrhea while taking antibiotics, it can be a common side effect. Ensure they stay hydrated and monitor for any additional symptoms. Contact a vet if symptoms persist or worsen.

  • When should I be concerned about my dog’s stool color?

    If your dog’s stool is extremely dark (almost black) or contains blood, or if there is a significant and persistent change along with other symptoms, it's best to consult a vet promptly.

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