The breakdown of a drug molecule usually involves two steps that take place primarily in the body’s chemical processing plant: the liver. (See Figure 1.5 [1] for an image of a human liver.) Everything...The breakdown of a drug molecule usually involves two steps that take place primarily in the body’s chemical processing plant: the liver. (See Figure 1.5 [1] for an image of a human liver.) Everything that enters the bloodstream—whether swallowed, injected, inhaled, absorbed through the skin, or produced by the body itself—is carried to this largest internal organ.
