The effects

What Methamphetamine does to you depends on:

  • How much you take.
  • How pure the drug you take is.
  • Your height and weight.
  • Your general health.
  • Your mood.
  • Your past experience with speed.
  • Whether you use methamphetamine on its own or with other drugs.
  • Whether you use alone or with others at home or at a party, etc.


The immediate and long-term effects of all types of methamphetamine are the same.  Because ice is a more potent or purer form of methamphetamine all the effects and side-effects will be more likely to happen and be more intense than speed and base.


Immediate effects

When you take a small amount of methamphetamine the effects can last from a few hours to a few days.

You may:

  • feel very good and confident
  • feel alert and energetic
  • be excited or agitated
  • talk a lot
  • feel aggressive
  • feel anxious or panicky
  • take more risks than usual.

Effects on your body may include that:

  • your heart beats faster
  • you breathe faster
  • you feel less hungry
  • your blood pressure rises
  • the pupils in your eyes get bigger
  • you move more quickly
  • it is hard to sleep.

If you take a large amount of methamphetamine you might:

  • get headaches
  • feel dizzy
  • feel restless
  • shake
  • have irregular breathing
  • have a very fast or irregular heartbeat
  • become pale
  • feel very powerful or better than others
  • become hostile or aggressive
  • have psychosis — a serious psychological problem where you hear voices, imagine things, fear that others want to hurt you.

Long-term effects

If you use methamphetamine often and for a long time you may:

  • become dependent on the drug
  • often become violent for no reason
  • get sick more often because your body can’t resist disease properly
  • be upset or depressed
  • have periods of psychosis
  • have relationship, work, money, legal or housing problems.

The way a person takes methamphetamine over a long time can also cause problems such as:

  • Snorting the drug can lead to nosebleeds, sinus problems and damage inside the nose.
  • Injecting the drug with used or dirty needles or other equipment makes you more likely to get infected with hepatitis C, hepatitis B and/ or HIV, get blood poisoning (septicaemia) and skin abscesses (sores with pus).
  • Injecting the drug over a long time can result in blocked blood vessels leading to serious damage to the body’s organs such as the liver, heart, kidneys. – inflamed blood vessels and abscesses.
  • Injecting and snorting amphetamine type substances  also increases the risk of becoming dependent on the drug and of getting other health problems.

It is important to remember that being intoxicated on any drug or drugs can affect your decision making and can decrease the ability to consent to sex. This can lead to risky sexual behavior such as unprotected sex which may result in you contracting a sexually transmitted diseases such as HIV, Hepatitis or Chlamydia. You could also be exposed to the increased risk of sexual assault. Such behavior can have a devastating affect on your future.