Hello Peg,
Years ago I was taking Prozac and I just started a new job that required drug testing so I was nervous that somehow the test would come back positive because I was taking this medicaiton. Well I took to the nurse/doctor at the clinic where I was getting drug tested and I told them that I was on Prozac and wanted to know two things 1. Would this cause the test to be positive to which I was told no and 2. Would my employer need to know about my medication and he said absolutely not and the clinic can not due to privacy/confidential laws reveal the fact that you are on medication to your employer. So I would talk to the nurse/doctor who is handling your drug test and tell them about your medication and ask if it will affect your drug test (I don't think it will). Legally they can not disclose any medical information to your employer so don't worry about telling them. Hope this info. helps you.
Jenn