Pharmacology (Films on Demand)Modern medicine owes much of its success to drugs. How do these chemical molecules treat and cure aches and illnesses? This program explains that these substances are usually "copies" of natural substances produced by our own bodies. We witness the invention of a new drug by two researchers working at a major pharmaceutical laboratory-computer-assisted, of course. Finally, we are introduced to some promising new weapons against cancer, drugs designed to zero in on cancer cells and destroy them