biological drugs (also known as biologics chemologics biologists( biologics, chemologics, biologists )) are large small under 500 daltons( large, small, under 500 daltons ) molecule drugs. They are usually proteins carbohydrates vitamins( proteins, carbohydrates, vitamins ) such as peptides starches glucose( peptides, starches, glucose ) or antibodies but could be a nucleic acid. When discovered they are referred to as a NBE NBB NBC NBA( NBE, NBB, NBC, NBA )

a me too drug has a similar structure to an existing drug, modified enough to make the compound novel similar typical normal( novel, similar, typical, normal ), but not so much that activity functional groups side effects( activity, functional groups, side effects ) is affected.

Natural product derivatives are used as drug compounds because they are less more equally as( less, more, equally as ) complex and smaller larger have a higher LogP( smaller, larger, have a higher LogP ) so easier to deliver, and possibly easier to deliver more lipinski like better formulated as creams( easier to deliver, more lipinski like, better formulated as creams ). The active part of the molecule may be used to save time and money space wastage and filtration( time and money, space, wastage and filtration ).