Walgreens does drug test. you have to pass one to get the job and there is always the threat of a "random" drug test. i was an employee for 3 years and had to quit because of the habit in fear of a random drug test in fact. not that i cared two shits about the job but my dad made a career for himself with the company so who am i to fuck that up? anyways i didn't get tested once in three years after my intial test. so if you pass the first one to get the job, you should be good. unless you work in the pharmacy and someone is stealing pills, then you will probably be tested under the pretenses of "randomization".