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A powerful stimulant that keeps people alert, usually sold as an off-white or pinkish powder – that sometimes look like small crystals

Also called:

  • Amphetamine Sulphate
  • Base
  • Billy
  • Paste
  • Speed
  • Sulph
  • Whizz

Quick info

How the drug works varies from person to person

How you might feel
Alert, energised, wide-awake and/or agitated, panicked, chatty.
Read more about how it feels
Effects on your body
Can make you feel more energised but also stop you feeling hungry. You might find it really hard to sleep.
Read more about effects on your body
How long it takes to work
A few minutes on average when snorted.
Read more about how long it takes to work
How long the effects last
3 - 6 hours on average.
Read more about how long the effects last
Common risks
A speed ‘comedown’ can last for days. Some people say they feel exhausted and sad after taking it. There is a risk when using a range of stimulant drugs at the same time. This can put your heart under a lot of stress.
Read more about the risks
Mixing drugs
Mixing drugs is always risky but some mixtures are more dangerous than others.
Read more about mixing with other drugs

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