**3.2 Cellular effects**

Cell has been serves as a medium in which the interaction of drug and target takes place. There is a possibility for the occurrence of two different instances, such as, the bonding of drug with the target makes it function properly as a metabolite and the other one is, it forms a group of toxic compounds which exhibit toxicological effects as an end product. It is through the process of endocytosis, the drug enters into the cell surface area. The drug needs to be a lipophilic component, since the cellular membrane is made up of lipid bilayer, which permits only the lipophilic components and cause the cytochrome P450 to produce the inhibition action/to simulate the production of the factors which cause disease, thereby describing the effect and functioning of a drug.
