Freaking out. Why would my psych prescribe Buspirone if they increase the chance of getting serotonin syndrome when taken with Pristiq? (According to drugs.com, has a "MAJOR" Interaction between these 2) 

I know SS is very rare, but I'm still scared I will get it from taking these 2 meds together. 

Does ANYONE have any experience with this? Please help ease my mind/provide insight...