Methamphetamine psychological

Schedule II—The drug or other substance has (1) a high potential for abuse, (2) a currently accepted medical use in treatment in the United States or a currently accepted medical use with severe restrictions, and (3) abuse of the drug or other substances may lead to severe psychological or physical dependence. Examples cocaine, PCP, morphine, fentanyl and meperidine, codeine, amphetamine and methamphetamine, Ritalin . 

Schedule 3 involves drugs with a significant abuse potential, but lower than for Schedules 1 and 2. Such drugs may lead to moderate or low physical dependence or high psychological dependence. Examples include many stimulants such as amphetamines and methamphetamines as well as various barbiturates. Anabolic steroids (used by athletes and bodybuilders) are also included because of their serious health risks. 

When discussing the mental and psychological effects of methamphetamine, it is useful to examine the two main types of abuse patterns of this substance, since each pattern has distinct psychological consequences. The two main abuse patterns of methamphetamine are low-intensity use and binge, or high-intensity use. 

Ritalin is a mild stimulant. On the contrary, the studies found that Ritalin, although effective in treating the symptoms of ADHD, shows no clear long-term improvement on users and can have dangerous effects on health, including death. Because the effects of Ritalin on humans are virtually identical to those produced by cocaine, amphetamine, and methamphetamine (speed), the researchers noted that its abuse liability is high and can lead to marked tolerance and psychological dependence. 

Because of the known physiological activities of adrenaline and mescaline, chemists have synthesized compounds with similar structures. One such compound is amphetamine, a central nervous system stimulant. Amphetamine and a close relative, methamphetamine, are used clinically as appetite suppressants. Methamphetamine is the street dmg known as speed because of its rapid and intense psychological effects. Two other synthetic substituted benzenes, BHA and BHT, are preservatives (see Section 9.8) found in a wide variety of packaged foods. These compounds represent just a few of the many substituted benzenes that have been synthesized for commercial use by the chemical and pharmaceutical industries. 

Methamphetamine or l-phenyl-2-(methy-lamine)propane is another widely abused drug. It is also known as speed . At higher doses, this strong CNS stimulant produces delusions and bizarre visual and auditory hallucinations. Chronic use at high doses can produce schizophrenia-like conditions. The toxic and psychological effects are similar to those of other amphetamine drugs. Its pharmaceutical uses have been discontinued. 

This era reached its climax in the 1967 Summer of Love in the Haight-Ashbury district of San Francisco, but it went downhill from there. The following year, Haight-Ashbury was plagued by intravenous use of methamphetamine (see p309) while concern spread that there were psychological risks to some LSD users. 

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