I will soon be introducing a way to add a shape to tablets, by way of something like a pill press. A crumbling red tablet would become "a round, crumbling red tablet" or "a square, crumbling round tablet". This will allow players to further delineate their tablets to make it easier to remember what they are.
With that in mind, there are a few existing tablets that have shapes already built into them and are described that way. I will first be re-stringing those specific ones to be "shape agnostic" before pushing this change. So do not be surprised if your existing "oval-shaped purple tablet" just becomes something more generic like "small purple tablet". I'll still try to make them unique in their sdesc.