I do know that Celexa and Lexapro or Lexypro have grinding listed as a side effect in the PDR. These are the newer antidepressant SSRI (selective serotonin reuptake inhibitors) medications. I have had problems with some antidepressants and anticonvulsant medications, which are also used for depression. I think it is trial and error with medications for me. I have found some make it worse and Elavil, which is used to treat depression and chronic pain, has given me some relief. Elavil is an old tri-cyclic medication. It is hard to know what to take.