Vet didn't want to use Flagyl except as a last resort. Maybe there's another option out there, I"ll ask.
Three of my five have had issues with intestional bacteria imbalances resulting in loose stools...my Vet used Tylan to get the florae back to "normal". Tylan is a very bitter powder...apparently enough to make you retch...just a pinch was required, added to the food, but there was no way these guys would touch it. I finally got some gelcaps & that did the trick.
My Vet said that, if I couldn't get the Tylan into them, then Flagyl was the alternative but, that Flagyl was even worse tasting....
SO......with all that background, you might want to ask your Vet about Tylan...considering
I admit to being over-worried about medications in general...
My Vet says that Tylan is the simplest/safest antibiotic. You still might want/need to use gelcaps, though.
Once the stools got back to normal I started using an Eagle Pack product, Holistic Solutions:
The ingredients in Holistic Solution™ are biologic tools that resolve the illness naturally by introducing Digestive Enzymes to ease the strain on the digestive system. Probiotics supplement the beneficial bacteria that occur naturally in the pet's system. Holistic Solution™ provides Prebiotics (Inulin), a food source for the beneficial bacteria so they stay strong and healthy. Few remedies offer this natural, 3-way, holistic approach to resolve symptoms. Holistic Solution™ resolves the symptoms by naturally restoring the gut to its' normal healthy state http://www.eaglepack.com/Pages/HS_Solution.html
Best of luck!