This stuff was horrible. First dose was 2 250mg and then one 250 mg per day for 9 days. 3rd days was experiencing crying spells and some loose stool. 4th day was more anxiety, feelings of gloom and doom, day sweats, achy muscles, strange body feelings, pins/needles, insomnia, dry mouth, metalic taste. Day 5, full panic attacks, day sweats, night sweats, tongue turned white. Called my doctor and told me to stop meds at this point. next few days crying spells and anxiety increased. I am now 6 days after stopping meds, and mentally and emotionally feel better (crying spells and attacks are way less) but physically I feel aweful. my back is aching and legs are heavy and sore. What a NIGHTMARE!! I will never take this crap again. How long does it stay in our system. I was told another 7 - 10 days after we stop the last dose.