A drug mechanism refers to the specific biochemical interaction through which a drug produces its effects in the body. This can involve binding to certain proteins, such as receptors or enzymes, which can either enhance or inhibit biological processes. Understanding a drug's mechanism helps in predicting its effects, side effects, and potential interactions with other substances. Different classes of drugs operate through various mechanisms. For example, antibiotics target bacterial cell walls, while analgesics may block pain signals in the nervous system. By studying these mechanisms, researchers can develop more effective treatments and minimize adverse effects.