Just took 10mg of prednisone and i really do not like the way it makes me feel. how ling will it take to get this 1 pill out of my system?

Prednisone effects: Side effects associated with prednisone can be difficult to tolerate in some patients. Some common side effects of this medication include: mood swings, trouble sleeping, irritation of the stomach, weight gain, gastrointestinal intolerance, and increased blood sugars (if diabetic). If you only took one dose symptoms should resolve within a few hours.