FortiFlora's label lists one organism, Enterococcus lactis SF68 -- the same strain published research still calls Enterococcus faecium SF68, since the genus name changed but the organism didn't. Each 1 g sachet is guaranteed at a minimum of 1x10^8 CFU; the label doesn't state whether that count holds through the printed expiry date or only at the moment of manufacture. There's no prebiotic listed. One packet a day covers any dog regardless of weight -- there's no weight-tiered dosing table, unlike multi-strain capsule products. The front-of-pack claim is narrow: a nutritional supplement for dogs with occasional diarrhea or loose stool, not a treatment claim.
What the label doesn't say: SF68 is the most-studied single strain in this category, but the canine trials are mixed -- most found no significant effect on their own, and the one dog-specific safety finding was a drop in serum cobalamin over two weeks in a small trial, not a benefit. The clearest positive signal came from adding it to metronidazole treatment, not from using it alone. The liver-flavored powder format is the reason it shows up often in posts about dogs that refuse capsules; palatability, not strain evidence, is its main practical edge over higher-CFU multi-strain products.
Transcribed from the guaranteed analysis. "Species only" means this label prints no numbered strain, so study results for a named strain don't transfer.
Sprinkle one sachet (1 g) daily onto food; same dose for all dog sizes (no weight tiers). For antibiotic-associated use, continue through the antibiotic course and for one week after the last dose, dosing at least two hours apart from the antibiotic. NOTE: this dosing guidance is aggregated from multiple veterinary/retailer sources echoing Purina's own feeding instructions — the manufacturer's own 'Feeding Instructions' tab could not be fetched directly this pass (blocked by an ad-redirect in the browser tool and a 403 on direct WebFetch); see products-gaps.md.
No. Store the sachets on the shelf -- the label doesn't give a specific temperature limit the way some capsule products do.
Veterinary and retailer sources echoing the feeding guidance say yes: continue through the antibiotic course and for a week after, dosing it about two hours apart from the antibiotic dose. We could not fetch Purina's own feeding-instructions page directly this pass -- see products-gaps.md.
Yes -- it's a genus reclassification, not a new strain or a formula change. Essentially all published canine research on this strain was done under the older name.
The label's own claim is narrow -- a nutritional supplement for occasional diarrhea or loose stool, not a treatment claim. In canine trials, SF68 by itself mostly showed no significant effect; the clearest positive result was when it was added to metronidazole treatment rather than used alone.
One small trial found SF68 lowered serum cobalamin (vitamin B12) over two weeks in healthy dogs. Stop and call your vet if you see vomiting or worsening diarrhea.