Substance Abuse information from trusted sources:
The Substance Abuse and Mental Health Services Administration ...
SAMHSA works to improve the quality and availability of substance abuse prevention, alcohol and drug addiction treatment, and mental health services.
National Institute on Drug Abuse - The Science of Drug Abuse and ...
The mission of the National Institute on Drug Abuse (NIDA) is to lead the Nation bringing the power of science to bear on drug abuse and addiction.
WHO | Substance abuse
Substance abuse refers to the harmful or hazardous use of psychoactive substances, including alcohol and illicit drugs. Psychoactive substance use can lead ...
Substance Abuse - What Is Substance Abuse?
Substance abuse can simply be defined as a pattern of harmful use of any substance for mood-altering purposes, but the broad range of substance abuse in ...
NIDA for Teens: The Science Behind Drug Abuse
The National Institute on Drug Abuse (NIDA) created the NIDA for Teens Web site to educate adolescents ages 11 through 15 (as well as their parents and ...
Parkinson's disease
Parkinson's disease is caused by a loss of nerve cells in the part of your brain called the substantia nigra. The nerve cells are responsible for producing a chemical called dopamine, which helps to transmit messages from your brain that control and coordinate your body movements.
Iressa
Substances that are inducers of CYP3A4 activity increase the metabolism of gefitinib and decrease its plasma concentrations. In patients receiving a potent CYP3A4 inducer such as rifampicin or phenytoin, a dose increase to 500 mg daily should be considered in the absence of severe adverse drug reaction, and clinical response and adverse events should be carefully monitored (see CLINICAL PHARMACOLOGY-Pharmacokinetics-Drug-Drug Interactions and DOSAGE AND ADMINISTRATION-Dosage Adjustment sections).
Allergies
An acquired hypersensitivity to a substance (allergen) that does not normally cause a reaction. It is essentially an antibody-antigen reaction but in some cases the antibody cannot be demonstrated. The reaction is due to the release of histamine or histamine-like substances from injured cells. There may be a genetic predisposition to acquire a particular allergy. The number of exposures necessary to produce enough antibodies to cause an allergy varies. An allergy may occur the second time a person is exposed to a particular allergen, or may not occur until years later when repeated exposures have produced sufficient antibodies. Manifestations most commonly involve the respiratory tract or the skin. Allergic conditions include eczema, allergic rhinitis or coryza, hay fever, bronchial asthma, urticaria (hives), and food allergy. The immune system is a highly complex defense mechanism that helps us to combat infection. It does this by identifying "foreign bodies" and mobilizing the body's white blood cells to fight the infection. In some people, the immune system wrongly identifies a non-toxic substance as an invader, and the white blood cells overreact and do more damage to the body than the invader.
U.S. DEPARTMENT OF HEALTH AND HUMAN SERVICES Substance Abuse and ...
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NIH - Substance Abuse
Alcohol Abuse in Pregnancy see Pregnancy and Substance Abuse · Alcohol and Youth · Alcohol Consumption · Alcoholism; Amphetamine Abuse see Methamphetamine ...