Friday, April 17, 2009

Drugs-Amphetamines:


The term amphetamines covers several similar substances including amphetamine sulphate, dexamphetamine and methamphetamine.

Amphetamines are produced from an oil base but may be found in a number of forms. The most common is for the oil to be converted into a powder. The powder may be made into capsules or tablets. Methamphetamine may appear as rock-like crystals or as a liquid. Methamphetamine, although structurally similar to amphetamine, is more pure and longer lasting. Occasionally a very high purity gel or putty like substance can be produced. Amphetamine is often "cut" with adulterants such as sugar, glucose or ephedrine.

Effects:

Amphetamines are psychostimulant drugs and their primary effect is to speed up the activity of the brain and nervous system. The user's heart and breathing rate increase and they may experience increased energy, alertness and confidence. Appetite may be suppressed and they may become talkative and excited.

The less sought after effects include heart palpitations, anxiety and irritability. At higher doses, amphetamine can cause irregular heartbeat, headaches, dizziness and panic attacks.

Long term, heavy amphetamine use can lead to insomnia and malnutrition. Psychological and emotional problems such as depression, paranoia and extreme aggressiveness can develop. In some cases, users may experience amphetamine psychosis - a psychological state, similar to schizophrenia - characterised by paranoid delusions. Amphetamine overdose can cause stroke, heart attack, seizure, coma or death.

Method of use:

Amphetamines can be injected, snorted, smoked or taken orally.

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