So many of the generic Zoloft drugs are manufactured in China. I have had terrible side affects from various generic Zoloft drugs manufactured in China. Greenstone's generic Zoloft (Sertraline) has been fine. Greenstone used to only manufacture their generic products in the USA. For the last 4 months or so, my taking 100mg of Greenstone's Sertraline, I have started having some of those same side affects. Where are they being manufactured today? China?