Brand vs. generic drug and the FDA requirements.

A generic drug is the chemical equivalent of a drug that has an expired patent. When a brand name drugs permission expires, other similar companies can produce the same active chemical compound and sell the brand vs. generic drug. In the Europe, the Food and Drug Administration (FDA) requires that all drugs, whether a brand names brand vs. generic drug purity and effectiveness. A brand vs. generic drug may be chemically exact but not bioequivalent. In other words, 2 different products of the same drug may not get into the body in exactly the same way. Bioequivalence depends on how the treatment is formulated and how it is absorbed and eliminated by the body. Other ingredients can affect the good health to patient took of the drug. These include starch fillers, like substances and other products which allow a brand vs. generic drug to be formulated into a drug or pill. Factors such as a subjects age, body, kidney, liver and intestinal function can also affect the major absorption in the body of the brand vs. generic drugs.

For a brand vs. generic drug to be marketed under a generic label, the manufacturer must comply with FDA standards. The Food and Drug Administration and the other companies job that brand vs. generic drugs must be therapeutically equivalent to the brand name treatment. Many studies have attempted to some differences in brand vs. generic drug. With some exceptions, many studies have not shown true statistical differences between brand name drugs and generic drugs. The few cases where differences exist occur mostly in treatments that have a narrow therapeutic index. The therapeutic index is the difference between the drugs effective amount in the body and the level at which the drug causes an undesirable or toxic effect.

In other order to ensure its safety & good effectiveness, a brand vs. generic drug undergoes intensive exams. The FDA sets up lines and requires strict testing in order to determine which drugs act the same way in the body. Generic drugs that have been tested and approved by the Food and Drug Administration to be therapeutically equivalent to brand vs. generic drug are published in a guide that is updated monthly and is found in most pharmacies. The lists brand vs. generic drug classified as therapeutically equivalent to each other, and gives them an A rating. If the FDA does not consider a drug therapeutically equivalent, it is given a B rating. Most pharmacies purchase drugs with an A rating to dispense as generic.