Peptacetobacter hiranonis is a gut bacterium formerly classified as Clostridium hiranonis before a genus reclassification -- it's the same organism under a newer name. A small 2025 pilot study in 11 dogs with diarrhea found no adverse events, clinical improvement in 8 of the 11 dogs, and increased fecal microbial diversity in most long-term participants, though the study had no placebo comparison to rule out other explanations. It appears in one product on this site, Zesty Paws Vet Strength Native Canine Probiotic Powder, which doesn't disclose a CFU count.
PubMed and PMC, dogs only. Other species are listed separately below and don't count toward the badge.
We don't have a confirmed CFU-per-kg dose number for Peptacetobacter hiranonis from the canine trials yet -- so this calculator is intentionally disabled rather than guessing.
Yes. It was reclassified into the Peptacetobacter genus, but it's the same organism that used to be called Clostridium hiranonis.
In a pilot of 11 dogs with diarrhea, 8 showed clinical improvement and most had increased fecal microbial diversity over the long term, with no adverse events reported. It was observational, with no placebo group to compare against.
No specific dose is recorded in our fact-pack for this strain.