Amphetamine(SPEED) is a stimulant drug that affects the central nervous system (the brain and nerves). It increases activity in the brain and body, which can make a person feel more awake, energetic, and focused.

Amphetamine works by increasing the levels of certain brain chemicals, especially dopamine and norepinephrine. These chemicals affect attention, motivation, mood, and energy.

Medical use

Amphetamines are sometimes prescribed by doctors to treat conditions such as:

• ADHD (Attention Deficit Hyperactivity Disorder)

• Narcolepsy (a sleep disorder that causes people to fall asleep suddenly)

When used medically, they are given in controlled doses and under a doctor’s supervision.

Effects

Amphetamines can cause effects such as:

• Increased energy and alertness

• Better concentration

• Reduced appetite

• Feeling confident or euphoric

Risks and side effects

Misusing amphetamines or taking high doses can cause problems such as:

• Rapid heart rate and high blood pressure

• Anxiety or agitation

• Insomnia (difficulty sleeping)

• Addiction

• In severe cases, paranoia or hallucinations

Because of these risks, amphetamines are controlled substances in many countries

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