Phencyclidine(PCP) Panel Test is used for in vitro quantitative detection of Phencyclidine content in human urine. Phencyclidine is used in powder, capsule, and tablet form. The powder is cither snorted or smoked after mixing it with marijuana or vegetable matter. Phencyclidine is most commonly administered by inhalation but can be used intravenously, intra-nasally, and orally. After low doses, the user thinks and acts swiftly and experiences mood swings from euphoria to depression. Self-injurious behavior is one of the devastating effects of Phencyclidine.