FortiFlora line: base Canine/Feline powder sachets (Enterococcus lactis SF68, 1x10^8 CFU/g, formerly labeled 'Enterococcus faecium SF68' — a genus reclassification, not a formula change), Chewable Tablets (same strain, tablet form), and newer 'PRO Synbiotic Action' line which adds psyllium husk prebiotic fiber to the same strain. Canine powder and chewable tablets are widely sold at retail/Amazon; PRO Synbiotic Action and the Feline powder are primarily distributed through veterinarians and Pro Plan Vet Direct — no retail ASIN found for either as of this research pass.
Same strain, Enterococcus lactis SF68 (studied under the older name Enterococcus faecium SF68). PRO Synbiotic Action adds psyllium husk prebiotic fiber on top of it.
Yes -- FortiFlora Feline Probiotic Powder uses the same strain in a separate SKU, distributed mainly through veterinarians rather than retail.
We found no retail ASIN for PRO Synbiotic Action or the Feline powder during this research pass -- Purina appears to distribute both mainly through veterinarians and Pro Plan Vet Direct.
Both use Enterococcus lactis SF68, but the guaranteed analysis on the tablet is printed per gram of product rather than as one flat per-tablet count like the sachet -- so the two aren't directly comparable without a stated tablet-weight-to-CFU conversion, which isn't on the label we reviewed.