depression
"I took one 50mg tab of Pristiq. 12 hours later, I ended up in the ER with heart rate of 140, BP of 198/102. ER admitted me to the hospital. I then had 3 episodes of my heart pounding in my chest and reaching a peak of 150 beats in a matter of seconds and then going back down. For many this medicine is a good thing, for me it was a nightmare. "