I give the deglycyrrhized root kind. It is chewable and I cut it in half and give it to my dog about 1/2 hour before feeding. He does not chew it as I give it to him like a regular pill. I believe the brand is Natural Factors and comes in a bottle of 90 tablets.
Here is the company website for the product: http://naturalfactors.com/products/detail/4463/dgl-licorice-chewable-tablets
Jennifer