Amphetamines and methamphetamines are stimulants of the central nervous system. The body and the mind are affected. The intensity of the effect depends of the doze and the way of use. The psychological effects are influenced by user’s expectations.
• Increased concentration, suppression of fatigue and sleepiness, loss of appetite, increased self-esteem.
• Body temperature and perspiration increase; fever may appear
• Increased blood pressure and heartbeat.
• Pupils dilate, rapid breathing.
• Dry mouth, blushed face.
• Muscles contract and uncontrolled movements appear – teeth grinding and jaw clenching, tremors, muscle spasms.
• Headaches and dizziness are not unusual.
• Rare use of amphetamines and methamphetamines may have a sexually stimulating effect. Frequent use and high doses may result in impotence (inability to achieve or maintain an erection long enough to engage in sexual intercourse).
• Chronic fatigue, apathy and weakness are the most often complains of regular users. When the effects wear off the fatigue and depression increase.
• The psychological effects include increased activity, feeling energetic, happy, awake and self-confident. Self-criticism disappears and there is increased talkativeness.
• The user can become agitated, restless and anxious – especially when the effects begin to weaken.
• Use of high dozes may cause symptoms of psychosis – confusion, fear, paranoia, delusions, hallucinations, aggression.