Not fully true, i failed this morning for amphetamines after starting strattera a week ago and having clean drug tests before today.. After doing some digging i found theses
http://www.hindawi.com/journals/crips/2013/381261/
http://www.ehealthme.com/ds/strattera/drug+screen+false+positive
Basically it is an antidepressant. Has no stimulants in it. Thus I would think that it should pose no problem with urine or hair tests - unless, they are screening for antidepressants.