you need to know that tramadol may possibly lead to dizziness, lightheadedness, and fainting any time you rise up from the lying posture. In order to avoid this, get off the bed bit by bit, resting your toes on the ground for a couple of minutes right before standing up.If concomitant use having a CYP2D6 inhibitor is critical, or if a CYP2D6 inhibi