Brewed from guarana, ginseng, and other traditional herbs and fruits, then distilled to concentrate the full potency of the draught, this bitingly sour blend  increases dexterity (+2) for 2-6 hours (Duration = Stamina +1). At the end of this period, physical and mental dice pools are reduced by 2 until the user has rested for at least an hour. This fatigue may be offset by additional doses; however, the crash effects are cumulative.