The outcome used is refers only to pain. We cannot give information in a league table about adverse effects. We cannot here give a league table for cost. That will differ in different places around the world. Patient choice, and professional choice, will be influenced by many factors.
Analgesic efficacy is only one.
Moreover, relative efficacy should be used as a tool to guide personal and professional choice, and not be used as a rule to exclude certain types of treatment because of cost or convenience. So please use the league table as you would a walking stick. Use it to help you and not to beat others. The table gives all the information we thought relevant, including the number of trials and patients from which the table is drawn. The two figures show the results graphically for NNTs, and for the proportion of patients with headache response at two hours.