From my research, most sertraline (generic for Zoloft) are not made in the US. This means that the standards and some of the ingredients are not the same, and there is virtually no oversight. There is "Northstar sertraline," which was previously available at Target; "Camber sertraline," available at Target and CVS; "Greenstone sertraline," available at Walgreens, and "Teva sertraline," which is made in Israel--I'm not sure where that is available.