Hi crazy4cats –
Supplementing with pre and probiotics long term is fine and actually very healthy. Many posters here supplement with probiotics daily or at least a few times a week for their healthy dogs. My dogs get 1/3 c. kefir every other day and raw green tripe almost daily (both are loaded with naturally occuring probiotics). DGL (deglycyrrhizinated licorice) is often prescribed by holistic vets and is used to help heal the lining of the digestive tract. DGL is probably something you’d just want to use while your dog is healing and not something you’d continue long term, talk to your vet though. The Vetri-Probiotic BD looks okay, but it only contains 3 strains of probiotics – you could do better imo. I’d check out Total Biotics is has 14 strains of probiotics plus enzymes and prebiotics, Mercola’s has a 14 strain probiotic and they also sell a separate enzyme supplement (http://probiotics.mercola.com/probiotics-for-pets.html) and Garden of Life Primal Defense has 12 strains (http://www.gardenoflife.com/Products-for-Life/Digestive-Health/Primal-Defense.aspx).
