Drug injection taking drugs, injection is favoured by some people as the full effects of the drug are experienced very quickly, typically in five to ten seconds. It also bypasses first-pass metabolism in the liver, resulting in higher bioavailability and efficiency for many drugs (such as morphine or diacetylmorphine/heroin; roughly two-thirds of which is destroyed in the liver when consumed orally) than oral ingestion would. The effect is that the person gets a stronger (yet shorter-acting) effect from the same amount of the drug. Drug injection is therefore often related to substance dependence. In a recreational context, the shorter, more intense "high"
Drug Price Competition and Patent Term Restoration Act for approval of a generic drug by the Food and Drug Administration (FDA). The Act provides some protection for drug innovators while facilitating and providing incentives for companies to file ANDAs. Drug innovators were provided protections in two ways. First, a new kind of market exclusivity was introduced, by means of a new five-year period of data exclusivity awarded when the FDA approves marketing of a drug that is a new chemical entity; during that period the FDA cannot approve a generic version of the drug. This provides market exclusivity for the drug innovator outside of any patent rights. Second,