My GP has me prescribed to Xanax 1mg but I recently had a surgery on my knee and now I m supposed to take 11.25mg of hydrocodone. She tells me take 1-1/2 7.5mg at a time which is 11.25mg every 6-8 hours. Then I have my anxiety medicines, which is 1mg of Xanax. Is that safe to take? I m only 140 pounds. It seems like a lot.