You've been told *several* times not to open, basic, useless threads in here and to use the dirtectory, search engine and basic drug discussion.
There is a brand discussion thread in the directory if you want to ask there but alprazolam is alprazolam, one brand isn't going to be different enough to produce any sort of effects the others won't, you might just have *slight* differences in onset and such if they use different inactive ingredients.