Amphetamines are nicknamed "speed" or "uppers" because of the burst of energy they provide. Abusers do not feel the need to sleep or eat when they are using. Some users also experience euphoria, a sense of well-being, and self-confidence. Users are usually talkative, and may be aggressive and paranoid, even at an early stage of use.
The desirable effects of amphetamines are not without a price. Users shortly build tolerance and dependence – addiction. Soon they need amphetamines to get through an ordinary day. In the meantime, the drugs do serious psychological and physical damage.
Amphetamines can be extremely dangerous or fatal from the first use. Users may die from burst blood vessels in the brain, heart failure, or super-elevated body temperature.
Common short-term effects include:
Amphetamine overdose is fairly common, which is probably due to abusers’ ever-increasing need for more and more of the drug (tolerance.) Abusers try to overcome their tolerance by escalating their use, they overdo it, and they overdose.
Amphetamine overdose is often fatal. Symptoms include:
Amphetamines cause a wide variety of potentially fatal damage to users’ mental and physical health. One of the most troubling effects of amphetamine abuse is the addiction itself, which can be life-altering. Withdrawal causes painful side effects, as well.
Other serious, long-term damage caused by amphetamine abuse includes:
Danger to Newborns of Women Who Use During Pregnancy