Methamphetamine has a stimulating effect on the release of dopamine and norepinephrine. The availability of amphetamine-derived drugs in the market has caused amphetamine addiction to become widespread. Before being used for addiction, methamphetamine and derivative drugs were used for the treatment of many diseases such as schizophrenia, narcolepsy, hyperactivity, multiple sclerosis, obesity, migraine, seasickness. Methamphetamine was introduced in France in 1932 with the aim of regulating nasal inhalation under the name of Benzedrine. It is now sold in the United States as a nasal decongestant in the form of a bench-top drug.
Methamphetamine may be used orally, by injection, by smoking or by inhalation. In recent years, methamphetamine has become more frequently used in many cities of our country.