Breastfeeding and Antidepressants?

Has anyone taken antidepressants while breastfeeding? I know Zoloft and other Prozac ssris claim to be safe, but based on what research and how long of case studies? I'm just not convinced there's enough long term evidence it won't have an impact on the child latter in life... these pharmaceutical devils only care about profit, and what better way than to create a life long dependency from infancy...