Dosage: Caution: Remove green protective shield before inserting. To do so, hold bottle upright, grasping bottle cap with fingers. Grasp protective shield with other hand, pull gently to remove. The preferred positions are lying on left side with knees flexed or in the knee-chest position. Self-administration may be carried out with the person lying on a towel on the bathroom floor or in the bathtub. Discard bottle after use.