1 Explain the use of the therapeutic ratings system in determining whether 1 drug can be appropriately substituted for another of the same therapeutic class.  Define some appropriate and inappropriate substitutions for commonly prescribed antihypertensive agents.
Definition and Statement of the Law: The law of diminishing marginal utility describes a familiar and fundamental tendency of human behavior. The law of diminishing marginal utility states that: As a consumer consumes more and more units of a specific commodity, the utility from the successive units goes on diminishing. Mr. H. Gossen, a German economist, was first to explain this law in 1854.
Marginal utility means an additional or incremental utility. Marginal utility is the change in the total utility that results from unit one unit change in consumption of the commodity within a given period of time. For example, when a person increases the consumption of eggs from one egg to two eggs, the total utility increases from 30 utils to 45 utils.