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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

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Every flu season is different, and even healthy people can get extremely sick from the flu, as well as spread it to others. The flu season can begin as early as October and last as late as May. Every person over six months of age should get an annual flu vaccine. The vaccine cannot cause you to get influenza, but in some seasons, may not be completely able to prevent you from acquiring influenza due to changes in causative viruses. The viruses in the flu shot are killed—there is no way they can give you the flu. Minor side effects include soreness, redness, or swelling where the shot was given. It is possible to develop a slight fever, and body aches, but these are simply signs that the body is responding to the vaccine and making itself ready to fight off the influenza virus should you come in contact with it.

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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.

Organizing Drug Information by Pharmacologic Classification Organizing Drug Information by Pharmacologic Classification
Example of “drug facts” labeling on the box of an OTC drug. Example of “drug facts” labeling on the box of an OTC drug.
If drug elimination mechanisms become saturated, a drug may exhibit zero-order elimination. If drug elimination mechanisms become saturated, a drug may exhibit zero-order elimination.
Common Serious Adverse Drug Reactions Common Serious Adverse Drug Reactions
Insurgencies and Drug Trafficking Insurgencies and Drug Trafficking
Drug Label for Doxazosin Mesylate Drug Label for Doxazosin Mesylate
Video: Genetic terms Animation

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